Tale Of The Super Six

Upgrading a single barrel Slant Six to the factory two barrel Super Six is like having your cake and eating it too. It boosts both performance and economy at the same time. The only question is, why didn't Chrysler do this from the beginning?
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#UTG #supersix #slantsix #mopar

[@thisisyourcaptainspeaking2259]

There's nothing better than accomplishing something that everyone says "won't work," "no good," "waste of time," etc.

[@thisisyourcaptainspeaking2259]

@Jonny Appleseed Is there a complement of sorts in there somewhere, trying to flesh one out....

[@crazycoffee]

@Jonny Appleseed Pretty much the story of my toronado. People skip on them. The guy i got it from was just going to leave it next to the creek when he moved. I grabbed it when i could. Best decision i made. Building it for the drag strip. People told me you won't be able to find parts for the brakes etc. Well i figured out c6 corvettes have the same spline amount and size in the hub. I will be converting it to corvette hubs. Then getting some nice brakes for it. People dont think outside the box is the main issue

[@Projects5309]

Yep, everyone told me I was out of my skull as I was converting my big block 73' Charger into a small block car. Less weight, more power & 50% better mileage...imagine that!

[@bertgrau3934]

I was told by a lawn mower shop I couldn't put a Kohler V twin on a Murry 40 inch mower because I couldn't find a drive pulley for the mower deck. Well, I did and it works great. I realize it's not like putting a hemi in a Volkswagen bettle, but all the same was told "You can't do that " , yet I did.

[@chalonfurtado2941]

I love the slant six. My grandfather raced a valiant with a hyper pak in the early 60s in the baby grand series of nascar. I didn’t learn that until I blew a head gasket on my 82 d150 and I took it to my grandfather’s garage. All of a sudden my grandfather, a dyed in the wool gm guy, lit up lite a pinball machine. We rebuilt that 225 and it’s still running today.

[@marks8052]

awesome

[@davideidsvaag8785]

I drove to a farm in WI where the owner bought and sold tractors. He had a great little Farmall that had slant six! I think it was a farmer mechanic 1 off. Very cool. Love that Sexy Suzy Slant Six!

[@JrGoonior]

I consider the Slant 6 to be a bread and butter engine, it's reliable and it will get you where you want to go without hassle or fuss and will run FOREVER!

[@0004612]

The modern day version is the 4.0 Jeep engine.

[@MrTheHillfolk]

@@0004612 back in '87 a friend's mom got a new Cherokee, we took it out and did tons of smokies. Wow it was a torque pig. Darned too , if it didn't toast some mid 70s smog corvette while out cruising around one night. Even in one of those crappy vettes, imagine getting smoked by a 4 door box with woodgrain? 😂

[@johnwayne7715]

@@MrTheHillfolk I remember my 85 Caprice 305 getting smoked at our local cruise spot, by a Cherokee 4.0 HO version with a manual trans, it was quite a surprise! Not that my 305 Caprice was fast just did not expect the straight six could beat it. I think the manual trans and the fact it had the 4.0 HO badge on the back of the lift gate that I was seeing as he was pulling on me lol!

[@0004612]

John Wayne I was meaning it’s a reliable straight six like the first comment said. And a Mopar motor, of course not originally a mopar.

[@johnwayne7715]

@@0004612 yes I do believe all the american straight six's were reliable, including the slant. The Hornet was my first car, and I beat the crap out of it! The trans and flexplate were it's weak points, not to mention the body rust. An old junk yard owner told me the AMC six would run forever! Just don't run it out of oil! Thanks for the reply! I was thinking you thought the jeep engine was the slant! My bad! And I was wrong there were also a 232 six AMC and even smaller 199 earlier version. After my comment, I opened an old Chilton's manual 66-73 American cars that my dad had, I had forgotten about cube sizes the 77 Hornet I had was The 258 2barrel! I definitely miss it now! Fun times cruising the old blue Hornet! Surprised many cars at the stop light grandprix lol!

[@mikemeyer1791]

Folks, this a perfect example of worthwhile information being recorded for posterity. Uncle T is a walking, talking service/performance manual. Forget the Mopar Performance Guides; this guy is the Guru of our time with experience to prove it all.

[@davidleonard8369]

Funny you should mention the Mopar performance guide. It's hilarious when assclowns like Brian cabral says uncle tony is full of it and an idiot. Because so many of the things tony shares with his viewers is in the Mopar performance bible. Many of us old farts used the information in the seventies and eighties.

[@baileyhatfield4273]

@@davidleonard8369 Most people just think you can slap an EFI carb on the engine and expect a shit ton of power...sadly, that isn't the case lol. Updates things, but surely doesn't really give you the power. Nice for a show around town car? Maybe. I think that if you play with old school stuff, you should for the most part, be doing it fairly budget oriented, still doing it right, just don't be spending hundreds and this and that when people know exactly how to make these things just scream. Same for a modern LS engine. The combinations to make those things just absolutely scream, and even on a budget, is insane.

[@crazycoffee]

@@baileyhatfield4273 Im building my 68 toronado for the strip. Ive been pretty broke so most parts were second hand. But damn it screams and flies down the road with my edelbrock for daily. When i swap to my strip setup with my holley it just roars and leaves.

[@crazycoffee]

@@baileyhatfield4273 Most people sadly just stick to the KZbin guides and dont realize all the beautiful cars with potential out there. Its mustang ls swap or anything ls swap etc.

[@discerningmind]

@@crazycoffee Well said.

[@davidleonard8369]

I made a poor man's super six manifold for a friend in the early eighties. Cut off and ground open the factory carb mounting flange and welded on a gutted base from a Rochester two jet. Used a Carter off a 318. He loved it.

[@selfdo]

IMAGINATIVE.

[@davideidsvaag8785]

My dad had a 67 Coroner 440 4dr 318 Torqueflite. It didn't have those GM lines, but had great 1/8 MI time! How did I know The cops were going on a side street. I flew past them at very respectable speed. They gave me the courtesy of a shot for home. They did give me a ticket. I was going about 80÷ in that 600 ft ! Got a ticket to dum dum skul. LOL 😂 Love MOPAR. Got that same 318 up to 107mph. It smoked a bit after that run. All done on a back road in MN! BAD LUTHERAN! :-)

[@DonalvonGriffyn]

This build is gonna be really cool. I say this as the owner of both a Miata and a Super Six.

[@Z_732]

Fun fact. They had 2 bbl intakes on farm equipment machines too. (Just incase any of you are looking for one) very cool UT! Can't wait to watch this one!

[@MattyIce250]

I have seen 225s with side draft carb setups too (carb was even mounted on the side, no hole in top of intake) all of those were industrial variants found in farm equipment

[@PiDsPagePrototypes]

@@MattyIce250 Side Draft,... we had a twin SU / Single DCOE manifold here in Australia, Triple SU manifolds and triple DCOE manifolds. They'd count as Side Draft right? ;)

[@drudgenemo7030]

This is probably the most interesting build on youtube.

[@redman715]

Agree was gonna say the same

[@kenleppek]

I agree. I can not wait to see how it turns out.

[@redman715]

@@kenleppek have you seen the duckman cycles hes doin a vw four wheeler definitely 2 very different builds

[@kenleppek]

@@redman715 I have not seen that I'll have to check it out. Back in the day Leo from SXS blog put a 4cyl street bike motor on a four wheeler that was sketchy and cool all at the same time, but that was way long before the SXS blog channel.

[@leecrt967]

It's DIFFERENT, that's for sure.

[@skystonegem]

Headline: "Mopar-Motivated Miata Munches Mazda-Motored machines!" Two words: UNCLE TONY!

[@henryescat1104]

I can't wait to see this! I never thought I would ever be excited to see a slant 6 being put in anything. But I totally get it.

[@randallsullivan3692]

I on the other hand think a slant 6 should be put in EVERYTHING!!!

[@davenhla]

When he first talked about it, I was really hoping he would go with an old Red Ram polyhead. But, he is right with this slant choice, if there is any car to put a slant in it is a featherweight go cart!

[@watzonda2b]

Tony, check out Aussiespeed (Slant 6 section).....they make a 3 into 1 cast exhaust manifold for the slant, one for the front 3 and one for the back 3....Doug Dutra created them and Aussiespeed now makes them. They have headers and intake manifolds as well.

[@macdrew77]

Doug Dutra, slant 6 legend and my personal hero

[@marks8052]

yep DDutra even forged his own hyper -pak manifold as well as the dual exhaust

[@silkysixx]

I have these and can attest to their quality and workmanship. As he said in the video, though, they don't have the runner length. They can breathe, but the paradox with many slant speed parts is that accommodating high-rpm flow is not really going to get you gains in the engine's meat-and-potatoes rpm range, which is 3000-4500. At that speed, it's all about length and scavenging, so long-tube headers and a long-ram intake are the ticket. I hope that an Aussiespeed Hurricane manifold and some headers make it onto this car.

[@patrickgraham6395]

I'm all in with the slant six. I love any 4 or six that has all of the power squeezed out of it. I had a '66 mustang with a 200 ci six and everyone thought it was a v8. Go for it!

[@richarda996]

A lot of early mustangs were 6’s , very few were 289HO. They were light cars, till the heavy engines were stuffed in the engine bay and frames were reenforced due to the extra torque and handling capacity needed.

[@bdogjr7779]

Awesome Uncle Tony《☆》The Navy surplus 60s era low profile aircraft tug we had would pop wheelies¿. I think it had a 170 in it. The throttle response was dangerous if you didn't know what to expect😁🌴◇:*:◇🌴Greetings from🍗Florida🤳Brother😎🎱☮🔊✌👍

[@mrdanforth3744]

You under rate the slant's performance potential. Look at it from the standpoint of 1960 when it was introduced. What was the competition? Ford had a 144 and 170 cu in Falcon six with very bad head design with the intake manifold as part of the head casting, very difficult to do anything with. Chevrolet had a 196 cu in six in the Chevy II (debuted 1961) that also had a very bad head design with siamesed intake ports with big post like head bolts in them. Studebaker and Rambler had long stroke adaptations of their old flathead sixes with OHV heads adapted that were poor for performance. Then there was the Corvair flat six with intakes cast into the heads, and very small valves. The very strong AMC six did not come out for another 5 years. Among that group the slant had a very good head design with separate intake and exhaust ports for each cylinder, good size valves and smooth flowing intake. The basic design was so good they could increase HP nearly 50% from 101 to 148, with a few bolt on goodies. The Hyperpak kit. Valiant proves the point in NASCAR's compact car race series where they went against the best compacts including some European models and wiped the floor with them until NASCAR cancelled the series after 3 or 4 races. It may not look like much today but there has been some progress in engine design over the last 60 years.

[@petershinkfield4980]

Bang on correct...the 225 slant ran so much better with a 2BBL. In Australia there was a HP 160hp version with hi comp, 2bbl and larger exhaust. These not only had 15 more horses they were way more economical. In 1970 the slant 6 was discontinued and the Hemi 6 was released...but that's another story

[@dennisyoung4631]

Reduced pumping losses, most likely…

[@PiDsPagePrototypes]

145hp single barrel 8.2:1 comp, R series through till VE, then both it and the 160hp 2bbl with 8.4:1 (though some math suggests the real ratios were 8.0:1 and 8.2:1), and then in the VF, the V7F spec "Pacer" with better then 190hp thanks to more compression, different cam, and different chamber design on the head. And all of them limited to a 3-speed manual.... With the Pacer's 1st gear being much higher then the regular 'box.

[@aussiebloke609]

Fuel economy on old engines is a strange thing. I remember when I used to daily a stock 1098cc Mini...then I put twin carbs on and my mileage got significantly better. Turns out that having straight manifolds instead of all those bends means less pumping losses, as well as better throttle response.

[@mostlyoldparts]

Autocross cars LOVE low end torque and throttle response. You don't need a lot of horsepower. Keep it light, keep it peppy and build your transmission for 1st gear use. I'd recommend a manual valve body for the A904. Have fun!

[@ScottKenny1978]

I know a couple guys basically built their cars to run the course in 2nd gear, runs pretty well for them.

[@georgewetzel4380]

I just want to add, I also fell in love with the slant 6; it was based on the 67 Coronet I drove; that engine had a PERSONALITY, and in addition to feeling great, and being reliable, economical and easy to work on, remains one of my favorite sounding motors.

[@modelnutty6503]

almost 50 years ago a buddy had a little old 2 door Valiant ('62?) was a great reliable little car that'd take some abuse. took a bit to get there but it'd pin the speedometer anyway.

[@livesteamfan1]

I work with a guy that was a Chrysler engineer way back when. He said that they put a faster linkage on the single barrel and nobody could tell the performance difference between the two. He also said that once they were tasked with building a slant with 318 power, but slant economy. Some head work, a 2 barrel, and a street hemi grind cam, and they did it. Never went into production. They also toyed with a turbo slant, but couldn't get it to survive boost.

[@ultimafuego]

I am in NW GA and im putting a 2bbl on a '76 Valiant. This video is helping me a lot. I just wanted to let you know that.

[@peteg4978]

I owned an 81 Chrysler Cordoba with a super six. A damn good reliable driver

[@stevenrhoat2902]

Built a 225 super six for circle track racing back about 15 years ago. Bigger cam with offset degree ported head and big Rochester carb. Wow! Torque was unbelievable till 5 grand!!! Didn't turn it over that. Destroyed any other 6 cylinder out of the turns! That thing would roast the tires to 45 mph! Ah but we move on, great idea Tony can't wait to see this finished!

[@bewilderment9268]

The first, and still the only, upgrades on my 63 Dart GT CV are the Dutra Duals, Super Six intake and MOPAR PERFORMANCE ignition. I use a Carter BBD straight off a 318. The air cleaner base is from a 67 Belvedere, which lends itself nicely to using an intake tube from an old Kcar. This runs to the round hole in the core support and bingo, fresh air.

[@southjerseyjim5049]

Always interesting. Uncle Tony is the most interesting man in the world.

[@jonathangehman4005]

My Dad was a Chrysler dealer mechanic from 72 till 97 and has the Slant Sickness bad. He said the porous manifolds ran like crap and were replaced as soon as they were discovered, usually when being prepped for sale. He also said that a bunch of the warranty 2bbl intakes ended up on the pickups and grocery getters of dealer employees and were fixed by hosing them down with a heavy coat of VHT enamel with the car idling to suck paint into the pores where it dried and permanently solved the problem. The 2bbl was a popular upgrade in S. Texas where I grew up not just because the added horses, but because when the ac compressor kicked in while waiting at a light on the typical hot as balls day, a less than perfectly tuned/maintained Slant wouldn't stall and vapor lock and leave you to die

[@geraldwegener8376]

I had slant 6 225 (Super 6) in a 78 Dodge Aspen. I upgraded the ignition with short length 8mm wires, copper studed dist. cap, 50k coil, bosch plat. plugs etc. Also using a aftermarket carb (Fish). Surprised when got on the highway at 45 mph the car started making good power and wanted to 'GO'. What was crazy the engine made a 'Turbo Sound' which I didn't understand until years later when Tony mentioned the intake was engineered to have a turbo effect. Now it all makes sense!😄😄😄

[@Geoduck.]

My first car in 1969 was a 1960 Plymouth Valiant three speed on the floor slant six. Very reliable and easy to work on for a newbie mechanic. I remember buying less than a dollar of gas would get me to school all week (five days).

[@TheTrueVoiceOfReason]

I'm excited to see how this works out. I had a 72 Dart 4 door hard top with a 225 /6, and my buddy at the time had a 74 Dart Sport with a 318. He couldn't touch me on the back roads. BRING IT TONY!

[@davenhla]

My Grandpa had a 72(maybe 73) Avacado green with a dark green top Duster with a slant and a manual on the floor. Very basic car, nothing to it really. He loved that car, and to me it always said a lot, the man was a regional service technician in the 60's and early 70's and drove all kinds of big cars with huge V8's, but this smaller slant powered tin box with a stick shift was the one he kept in the hay loft and drove around here and there every summer with a grin into the 90's. I remember when I was 6 riding along down the back road and he taught my older brother how to drive a stick. We didn't tell Grandma :)

[@TheTrueVoiceOfReason]

@@davenhla That Dart was my grandpa's. He bought it brand new. When he passed, it went to my dad, and he gave it to me in the mid 80's. Did you know that if you don't change the oil for 4+ years and put LOTS of miles on it in that time, it is possible to kill a slant? Didn't even have it a week (was going to do oil change on Saturday) when it smoked the cam and 4 bearings on that Friday. I learned so much fixing and keeping that car on the road. I sure do miss it.

[@unclemikeb]

I really appreciate your videos, lots of great info, many thanks. I owe a lot to that sweet running engine. I owned several beginning in 1970. WI winters are hard on cars, crap rusts until a car can be a total mess and just too hard to save. Between a Valiant, a Dart, and a Duster a slant six carried me to work and back for most of the 36 years I worked at the Belvidere, IL Chrysler factory. It started in winter and summer. In the 70's we had a couple winters where it was minus 10 degrees in the day time. Leave work at 3pm and all the cars were cold and stiff. Many times my rusty Duster went around jumpstarting newer cars, LOL. I put the biggest battery that would fit in that Duster, had to manufacture bigger hold downs for it. bought it at farm implement store. At ten below, it would grind, shudder, make scary noises, and then the power steering pump would howl as it spun up, but it ALWAYS started! There would be several hoods up needing jump so I would make the rounds. Two guys left the new car at home and started driving an older car with a slant six because they knew it would start. Got to love that. LOL. At one time I bought a used 1964 Valiant two door hardtop that had bucket seats and a four speed from the factory! The guy was wanting a new car with auto trans so he posted it for sale and I bought it. That was a fun car. It had a 3:23 rear axle so with the four speed trans first gear was quite low. If I pushed it hard it would lunge pretty strong off the line, had to be ready to shift quick because it would redline the engine at about 25mph. That shifter was tight and I never missed a gear with it. I never really souped it up, just tinkered with richer jets and timing. One thing that really helped was over sized exhaust and a Hush Thrush muffler. When the pipes rotted I had a local shop make me all new pipes 2 &1/2 inch diameter. In time it got so rusty I was reluctant to drive it. I listed it for sale with a slant six club and a guy came with a trailer. He had a mint condition Valiant wagon. he needed an engine and wanted that four speed and bucket seats to create the wagon Chrysler should have built. I lost track of that guy, hope he made it happen. I knew Chrysler introduced the super six because I test drove one in an Aspen. It was nice car. It also had a four speed trans., fourth was supposedly overdrive. Not sure why I didn't buy it. I think that was about the time I got a steal on the Duster. We had a full sized Dodge van the wife liked because she could see everything from up high. With sure grip and good tires it was actually pretty good in the snow.

[@k5wxp22]

Love what you are doing here, Uncle Tony! This is old school hot rodding at it's best, only with a "modern" platform. Looking forward to seeing how this car performs.

[@reno145]

I will love to watch the haters eat their words when you get the Miata up and cooking! That car doesn't need scads of horsepower to scoot down the road.

[@joekurtz8303]

Agreed power to Wt ratio favorable, on the reverse side, I'd seen a tech put a Mazda rotary in a 65 CortinaGT. It scooted just fine.

[@reno145]

@@joekurtz8303 I saw a video of a guy who put a snowmobile engine and CVT in one, and nothing could keep up with it.

[@ScottKenny1978]

Most of the auto magazines say that the most fun car to have is the Subaru BRZ. It's a @14sec car at best, but they all say that if it was their money they'd go for the BRZ and not a Hellcat, GT500, ZL1, etc. Save $40k plus.

[@reno145]

@@ScottKenny1978 I would take another Jetta TDI and tune it a bit for a fun car. Loved my ‘98.

[@ScottKenny1978]

@@reno145 they're pretty fun, all right. A friend put a TDI into a Porsche 914, said the extra torque made the car a lot better in the twisties.

[@bennybandido]

Luv this guy and his down to earth ways of communication 👍

[@Zerinsakech]

I went from a since barrel to a 4 barrel Carb setup on my slant six. I got better fuel mileage from a Holley 390 than the little old single! LOL.

[@rockymeyers4030]

The Mercedes 300 SL has an inline six leaned over like the slant six, and it's a million dollar car

[@gorkzop]

Bmw's have a slanted six...mercedes not so sure

[@jamesweis2671]

Years ago read about a slant 6 with a later model k car turbo. Since the 2.5l engine turned 6k rpm and 12 lbs boost, the slant would work and peak at 4k rpm. It was totally mechanical, reference boost to the fuel pump would increase pressure 1 to 1 until 16 psi boost so no need for complex controls, just an old school build with a lot of torque. Pretty much bolted upto exhaust manifold and ran output to box on the carburetor.

[@richardbates2367]

One thing I love about the Miata choice idea,is Miata was supposed to be a fast reliable car,as far as mopar goes the 225 slant 6 series of engines are almost dead reliable, only other engine in the base engine category I've seen that I'd say were as dead reliable is the 273,318 and I would choose the slant 6 and the 318 for reliability!! Can't wait to see this finished and the smile on your face when everyone sees how this Miata reacts uncle tony sir!!

[@OlympusHeavyCavalry]

Here in Australia, the slant 6 Hemi was given a lot of respect, and is still considered a formidable engine today since its release in 1970 in it's three C.I. variants. Cheers :-)

[@jacobmoses3712]

I remember seeing pictures of them racing at Bathurst. I think the factory team even but a 4 barrel carb on them but it was installed wrong so it would starve going around bends

[@stevegrindell210]

Look at slaghammer. She's definitely came a long way to today. Great work Unc and Al.

[@craignehring]

sweet, love this concept I drove a 1962 Valiant with the 225 it was a very fun car despite having the automatic MOPAR in it's infinite wisdom had the balls to equip it with a 3 speed automatic.

[@toddlytodd]

I had a super six 79 Volare coupe with soft top. I recall it only resulted in 20hp and torque (100hp/170 torque) over the base 1bbl. Loved the car.

[@sasz2107]

The Super Six upgrade is one of the best things I ever did with my 225 slant 6. I went from a Holley 1945 to the Super Six w/Carter BBD from an Volare. This completely woke the engine UP!! The Super Six on the Aspen and Volare was actually a package - 2 barrel carb, larger exhaust, and a slightly different rear axle ratio. In my experience, gas mileage was about the same with the 1 barrel vs 2 barrel setup. But power was MUCH better! As he said - why didn't Chrysler do this sooner?!

[@TAVOAu]

62 was the only year we had the reduction gear starter on the slant down in Oz, that was replaced by a locally made Bosch direct drive for the 63 model. We got the 2 barrel in late 67, using the BBD Carter on a cast iron manifold. it wasn't until 1970 with the Hemi, that we saw a dual outlet exhaust 'header' on the Pacer performance model. BTW, I'm totally a Hemi 6 guy, I know some stuff about slants, but the Hemi is my thing.

[@davsaltego]

Loved the slant six. Had it a Duster, the second car I owned. Always started and could not break that engine. Always idled smooth as silk, cruised on the Highway for hours.

[@richardturk7162]

I think there was a hot 170 built back in the day by a drag racer running stock classes. I remember it was 1974 at the Sports Nationals at Bowling Green Ky. I'll do some digging thru my pics and slides and see if I took any pics of it.

[@edfrawley4356]

This is the kind of automotive weirdness that brings me back to Uncle Tony's Garage. I have seen several Miata builds including a couple of LS builds and a 3.6 litre (that's 217ci in 'Murican) LFX but only UT steps out of the box with an engine that practically nobody wants just because it was never meant to be. And he is absolutely right, with the cg moved down and back the car is going to be better balanced and planted. As usual for UT this is going to be a cheap fun ride. I wonder how a set of triple Webers would work on a slant?

[@ricks.8563]

In the Netherlands, we had all kinds of A-bodies available with the 170 and 225. Fun thing is they were available (actually standard!) with the Hurst 4spd here. This was for the European market. Smaller engine, manual trans. They are fun to drive with the 4spd! Also, the Netherlands had their own Chrysler plant, because it was cheaper to ship the cars in parts instead of complete cars.

[@jeffjankiewicz5100]

I had a 225 slant six in a 75 Duster and I beat it mercilessly, never left me stranded. Bulletproof.

[@bruceraykiewicz6274]

Very old(78) gear head here. A good spell ago, I owned TWO slant sixes. A '71' Dodge dart, bought used, and later a '78' Plymouth Volari wagon, also bought used. I drove each of those cars to over 300,000 miles. Neither engine ever needed any major work. The 71 had old style ignition, and the 78 had the reluxer electronic type distributer. Until recent rears, I never owned any cars that went that far with just normal TLC. Sorry for the long post.

[@Nubsanders]

I absolutely love that you are doing this and am super excited to see this happen

[@johntaylor1310]

Love the new shop

[@grumpycarlsworld]

I did hear you mention the "Australian marine" manifold, Tony. Not sure how aware you are of it, but we had a 2 barrel 225 available as the 160HP option in all Valiants from 1967 - 1969, until we switched to the "Hemi" 6 in 1970. Plenty of the factory cast iron 2 barrel manifolds available here. In 69, they upped the ante a little with the 175HP 225 "Pacer" version, by increasing the compression ratio, and let it exhale a little easier.

[@GnarshredProductions]

I ran a chokeless 500cfm holley 2 barrel like what they use for circle track engines on my datsun 260z 2.6L engine it ran great and that was a straight six. For a performance setup I think the 350cfm might be too small. The slant could be pretty fast with a turbo you could use a cheap gt3582 or t3/t4 hybrid turbo from ebay and blow through a holley 2 barrel carb with a carb bonnet that would work well. I think with the slant not being a very high performance engine it needs some boost to wake it up. I heard what you said about the torqstorm supercharger but that is too expensive you could flux core weld a turbo kit together for a fraction of the cost using turbo bits off ebay like how us cheap import kids do it. Doesn't have to look pretty just has to work.

[@robertwest3093]

I always liked the straight 6 (except the Ford 170 and 200 with the intake cast with the head in one piece!). I particularly like how most of them start out as low compression and leave lots on the table in a compression increase (maybe 30-40 horsepower in compression alone). Plus you can pick them up for cheap or close to it!

[@davesnothereman699]

I have a 71 Duster that has a engine swap that was done at some time and has this 2bbl manifold with a Carter BBD, It hasnt run in 10+ years but it did when it was pulled from a field. It's a current project. I love your videos!

[@georgewetzel4380]

Regarding "low performance," I used to drive a completely stock 67 Coronet slant/904 that almost everyone at first believed was a 318, and w

[@georgewetzel4380]

And would go to to toe with a tuned 300 six falcon three speed till the top of the falcon's third gear.

[@hillbillysportsman5818]

Coming from a Miata owner I’m looking forward to how this turns out.

[@dangilbertville2577]

I had a 4 door 1962 PLYMOUTH BELVEDERE with one option, backup lights. That means it had the 225 slant 6 and 3 speed manual on the column. Didn't even have a radio. That car never quit. It would start at -40. I inherited it in 1970 to go to college. It bent one pushrod, and still took me to the dealership, although poorly, to buy the new part. The only other problem I had was vapor locking when I stopped the engine in 100 degree heat. A friend wanted me to turbocharge it, but nobody knew anything about that here in Iowa ( I think he saw an article about doing that to a slant 6 in Hot Rod.). Anyway, after college and not being broke any more I installed the two piece Hooker Headers, radial tires, and left the one barrel Holley carb. Holy smokes Batman. Before. you put your life in your hands if you tried to pass a car on the highway. After, when you hit a certain RPM (I had no tach.) it ran like a bat out of hell and really pushed you back in the seat. Passing was now easy. I drove that car until the middle 80s. The neighbors made me get rid of it after I got a new vehicle and let it sit for several years. I jumped it from a good battery with a little gas down the carb and it started right up. 30 seconds of rough running and it settled down to an idle. One teenager with $100 and I never saw that car again. As an extra: The local cab company used slant 6 Dodges and ran the engines for 300,000 miles.

[@roknroy1]

can't wait to see it!

[@BlueyChandler]

Interesting, informative information regarding the genisis of the /6, looking forward to your build.

[@michaelbotta3735]

Years ago I owned two dodge aspen, 1976 and a 1979 , The 1979 was the super six with the two barrel I would average close to 1000 miles a week of driving on it.Could not kill it had it for years

[@raydreamer7566]

The slant 6 was my favorite motor. I owned a Dodge dart - many Valiants - and dodge pickups with the slant 6 . When I worked in the Norther Ontario jobs and it was - 30 or colder it was the only truck brand on site that would start at those COLD temperatures. The slant 6 was one of my most reliable motors I ever drove behind,,,,

[@paulverstraete9157]

i had my 70 d100 with 170 out of a junkyard dart.....super six manifold and carb air cleaner from a pick and pull....ran a glass pack...loved it....np 435 trans set up with a 2.9 rear it was like a racing tractor that liked revs....

[@ScottKenny1978]

My concern for performance was honestly weight and balance of the car. Miatas are very precisely balanced and that's what makes them so fun to throw around a track or mountain road. But if you can get an aluminum block, that should address about 100lbs of the weight penalty of a cast iron block slant compared to that 1.6L Mazda i4. Edit: and Uncle Tony? You *gotta* paint the slanted Miata Plum Crazy!!!

[@jeffreysciortino1988]

Something I’d love to hear you talk about re: slant 6. My 75 scamp with the 225, would stall if you floored it in a hard corner. Why did it have to do this? I read Lee Iacoccas autobiography, and he mentioned this (I think he cited the volare) as an indicator of how far Chrysler had fallen from the engineering juggernaut it had been through most of its history. This is a great build, staying true to the 170s original intent and incorporating into a modern, lightweight, low cg car. Can’t wait for the next installment.

[@peterlake4400]

I had a 65 Polara with a 225. You're right about the performance. It would barely haul itself up over a good thick shadow on a sunny day from a standing start. Tough as whalebone , though. It got so low on oil once, the lifters started rallling. I put 4 quarts of oil in it to bring it up to the mark, and drove it for years. Had a mechanic offer me a high performance intake and exhaust for it - 6 single barrel carburetors and header exhaust. I didn't have any cash for that. One of life's regrets. Have not been able to find anything about that setup on the internet.

[@STAY-GOLD-VINYL]

No LS Swaps Here Folks!!! Love it

[@hmayerv8]

You are simply amazing mate. Like your down to earth videos, so much of truth in them ... the old skool way.

[@MrJayrock620]

For an auto cross application the Super Six is an awesome choice. Most people swap a V8 into these and they’re the ones spinning off through the cones or into the field. On a tight road course you need a linear power band and good low end torque and these have it.

[@motomichael4775]

He fell in love with the Slant 6 and he doesn't know why. I think we can relate to that.

[@silkysixx]

Man with that rear gear and a 3-spd manual, this thing would put a smile on your face. As for built 170s, I read something a long time ago about South American speedway racing - I think in Argentina - where the motor of choice was a 170 with long rods and a dangerously ported head that did absurd rpm. It's been done, just not by anyone who publishes!

[@crazytrain7114]

I 've seen quite a few back in the day at New England dragway in the 70s and 80s. They can scoot and keep up with the small blocks

[@crazytrain7114]

Check out Leave it to Deaver, killer Saab with a 6 shooter!

[@kenhale358]

I had a 170 in a 62 v-200 for 300,000 miles. So I consider my self an authority. I am a various aggressive driver. Loved that old frog. I used to pull my catamaran to the lake with it. Great power and good mileage. Of course there were mods preformed. Heads milled 100ths, larger intakes and exhaust valves, notched valves for chevy valve spring keeers because of inceasing spring pressure. Cam went to howard regrind m-4f 276in 276ex 410 total lift. Lots of valve lash noise, oh well! Adjusted them at same gap int-exh which i believe was(cant remember) it was way open from stock settings.Get rid or that factory broom handle. Ran a 60's aluminum intake that was modified for the bbd, split exhaust to larger tailpipes with "X" to quiet some noise, still sounded like a Baja buggy but a lot faster. Oh, I forgot I had a Pontiac 4 cyl 9.5" clutch and mopar 4spd with small Dana 3rd member out of a 65 "S" package from the junkyard. Don't forget to beef up clutch torsion shaft, that clutch will breaker. The o ly mistake I made was I should have waited a couple of yrs and used a 198 ci. It is a much better starting point. We were experimenting in 1967. I owned that car for 25yrs and I miss it most. Today I would install Doug Dutra's exhaust manifolds. The unibody finally filled me and it was scrapped.

[@raybrensike42]

I look at that starter from under the hood and yes, there are a lot of things to like about a slant 6.

[@homevillegarage947]

I’m in Australia n I have a 350 Holley n runs sweet ! The slant is so much smoother with a dual barrel on em Love the channel mate

[@chrisgosselin6399]

Always love a good Tony story!

[@oldtanker4860]

When I was in Jr Hi, I read a drag racing book that was all about MOPAR stuff. They claimed to have made a dragster (rail style) with a 225 slant 6 and a STOCK push button automatic transmission. The driver routinely ran the engine to 3,000 RPM then dropped it into drive to launch it. They also ran against small block v8's and won consistently. I'm sure they did build it up but it was normally aspirated and ran on gasoline. IIRC that was drag class C and D. It's been more than 50 years since I read it. That book started my love affair with the slant 6 but I was corrupted by the 383 shortly after I graduated HS.

[@scottinWV]

The slant 6 will run forever. Used to drive a Dodge full size delivery van in the early 90's. The spark plugs were seized into the heads and we were afraid to try to get them out. It didn't miss so I kept driving it. The owner of the company ended up selling it to a company just starting up and they put many more years on it. I'd like to own something that reliable again.

[@elmerfudpucker3204]

I had a cousin that worked for a machine shop and dirt track engine builder. He took a slant 6 and built it, using bunches of different parts and having pistons made for it. Reed Cams ground him a cam. He shaved the block and head a BUNCH to get zero deck height and combustion chambers down. Had a Clifford 4 bbl intake and he made the header himself. Put it into a Duster with a hemi 4 speed and 8 3/4 rear end. That was one of the fastest cars around, I kid you not. I wish I knew what he used, and what it would have done on a dyno. This was in the mid 80s, and he has passed away now. He had people from all over coming to him to do Mopar stuff.

[@FeralPreacher]

Maximize the Minimum. Sounds like a challenge. Gonna be a fun ride. Thanks for sharing.

[@matthewgillman5198]

been watching this channel since like 10k subs. the amount of knowledge tony has is just awesome. older cars are not really my thing but the in depth explanations of things is just so damn interesting. keep up the good work tony. love your content.

[@THRASHMETALFUNRIFFS]

I just seen a awesome vid of an old Lancer at the strip with a hot 6... hold on.... Ok.. it's called 61 Lancer vs. Hellcat ... or "supercharged Duster slant six lifting a tire again"

[@ItsDaJax]

I forgot the Dodge Lancer existed, until I saw this comment.

[@THRASHMETALFUNRIFFS]

@@ItsDaJax I just got this 71 Duster recommended! "supercharged slant six lifting a tire again"

[@ItsDaJax]

@@THRASHMETALFUNRIFFS I want one of those sedans used in The Dukes of Hazard for patrol cars.

[@scottinWV]

You might have to turn the carb around backwards and loop that linkage cable around to it! ;) I can't wait to see this thing running!!!

[@throttlewatch4614]

Don’t question what Uncle Tony does

[@claytonchar9232]

My father bought a new 1962 Valiant with the 225 aluminum engine. The 3 on the tree wasn't the greatest for speed shifting so I installed a Hurst shifter. When the engine later failed due to a cracked cylinder sleeve, I replace the engine with a Chevy 283 V8 bored to 302. The 225 engine was a high-torque wonder. The acceleration from a standing stop would beat most of the heavier cars with larger engines.

[@MEdGrant]

I remember buying my first (and only) new car from an order sheet in 1978. It was a Volare wagon and I was able to order it with the Super-6, limited slip differential, manual 4-speed floor shift and bucket seats. Put a set of chains on the back tires and you could not stop that thing in the Montreal winter snowstorms even when the city plow operators were on strike! (and they always seemed to go on strike when the snow fell in the winters of the late 70's, early 80s). Had to rebuild the carb once and replace the exhaust manifold, get the brake cylinders replaced once. It finally got sold on in about 1983 or 4 when I moved to Western Canada; used to see it around town for a couple of years after that but I think it finally died with terminal skin cancer (body rust).

[@TheGarywilliams]

I've got one of those super six intakes . Now I'm inspired to use it

[@428eliminator3]

Keeping it FUN!

[@1575murray]

Chrysler sold the 2 barrel equipped Slant 6 engine in other countries outside North America going back to the 1960s but didn't offer it in the USA or Canada because it didn't want to cut into sales of the 273 and 318 V8 engines. In the 1970s the Slant 6 became inadequate because the cars it was installed in got heavier and also were burdened with government mandated emissions requirements and often air conditioning as well. In 1976 the Super 6 was offered for the first time in the USA.

[@johnlemme1603]

had a super six in a volare,people that rode with me thought it was a v-8!

[@chiefbobdavis99]

Cool cool cool! Can’t wait to see this completed!

[@chisel83]

The 6 pack hemi from Australia 265 straight six hemi with triple Webers

[@DougsterWolverineGarage]

I love this engine and here in the states it's not available I'd love to play with one! It is the only living relative to the "ball stud hemi" program

[@MrJohnnyDistortion]

Link?

[@chisel83]

@@MrJohnnyDistortion www.tradeuniquecars.com.au/feature-cars/1510/vh-valiant-charger-r-t-e49-australias-greatest-muscle-car-series-3

[@MrJohnnyDistortion]

@@chisel83 👍👍👍

[@coachm2075]

I had a 65 barracuda with a 235 slant six with a 2 barrel carb electronic ignition that I took out of a valiant that thing ran like new and was pretty quick. Miss that car my father sold it while I was in the army back in the late 80's

[@magethenrogue3035]

One day I will put my first car's 3800 into my 95 Miata body... why just because I love both. LS or 302 Miata is way better but I have no connection to it. I love your project and can not wait to see more!

[@ScottKenny1978]

3800 isn't a bad engine. Especially if you stick a big turbo or two on it (hello, Buick GNX!). Do they make an aluminum block for it?

[@ItsDaJax]

Meh... those are too heavy and upset the balance. The only v8 I'd ever swap in one is a hyabusa v8. Other than that; v6 all the way. Plus the 3800 has to have some kinda aftermarket, as long as it's been around. It out lasted the 4.3.

[@magethenrogue3035]

@@ScottKenny1978 Yes there are Aluminum blocks but I don't know what gen they are modeled after. 6 bolt mains full race versions. That and a small twin turbo set up would be fun! Mines the taller deck TPI version. Not at all a performance piece but like I said I pulled it out of my first car so Ill find a way!

[@magethenrogue3035]

@@ItsDaJax I'm a novice at this but I looked it up and you are right. I always thought the 3800 was heavy.. and it is. But the 302 and the LS1 are 100lb more. Its never going to make the same cheap HP but I don't mind.

[@ScottKenny1978]

@@magethenrogue3035 turbos are not super expensive. Keep compression low and crank up the boost!

[@alfov8]

In my country /6 where used for racing, they reach about 350 hp, at 8300 rpm, with a two barrel webber ida and limited to 9:1 static cr. Stock cars came with holley 2300 two barrel carbs.

[@erwinnijs1]

Go all out with three dubbel barrel side draft carburettors, individual runners and velocity stacks and tune the runner length yourself for maximum hp. It will be awesome!

[@retro440]

OMG, I had 1978 (I think) Dodge Aspen 225 Super Six!! Tony, love ya, brother!!

[@2000freefuel]

Tony, in place of cutting holes in the firewall, may I suggest the IH method, AKA just kiss the firewall with a sledgehammer a few times till the engine fits. (yes that was actually done in production when IH fitted diesel engines into their Scout models)

[@idolworkshop]

I ran a 318 BBD 2bbl on a Super-6 setup I had, and it ran *really* well. Since the heat element choke arm isn't in the same place as on the original S6 2bbl, you can pick up a new element setup from CarbsOnly out in Burbank, CA. I clipped the arm on it a bit and bent it to fit, and it worked wonderfully. It never bogged or flooded. BTW, any updates on the Turbo Slant?

[@YeOldeTowneCryer]

Back in the early to mid 80's money was really tight for me. I had two dusters I kept swapping parts off of. Alternator, starter, headlights, radiator, etc. I would limp home with dying battery and steal the alternator off the other one. Then buy an alternator on the way home from work and a starter for the other car. One was a manual shift the other an auto. Both were getting rusty due to our salty WI winters. Had to put plywood in the trunk to hold the spare time from falling out. Starters took a beating since it was really cold and I had not discovered synthetic oil back then. It took a lot of grinding but the slant six would start once you figured out how much to pump the gas pedal. Those slant sixes were bulletproof. They even started when it was really cold. In the morning it would start in minus 20 weather. Car sat out all day in minus ten degrees but it would start. Some newer cars would not start. My rusty duster would go around stopping where there were hoods up and give them a boost. LOL It helped that I bought a huge battery from the local farm implement store. There was lots of room under that hood. So starters did not have a very long life back then. I learned to always have an extra at home and in the car. I got really good at swapping starters. It was great to have them right on the top side. I learned to put winter grade tires on the back and drop 200 pounds of sand bags in the trunk. That made a HUGE increase in traction. Those dusters got me through some tough times. I bout froze my butt sometimes working on them but they got me to work and home. At one time I had a 2 door Valiant with bucket seats and a four speed trans on the floor. It was a fun car. A guy who restores Valiants wanted it really bad. Offered me a good price for it. I sort of wish I had kept it. I recently watched a video where some Australians put a hot cam in a slant six, tuned ceramic headers, and three 2 barrel carbs. If I remember correctly that little beast put out 280 HP and 290 torque.

[@dreadpenguinlord340]

Considering they *were* designing around physical dimensions, the great reliability is pretty impressive!

[@johnwilburn]

I should have that engine in hand tomorrow.

[@Charon-5582]

Nice