Straight-Six on Steroids: Boosting a 292 Chevy - Engine Power S7, E2

The straight-six engine gets a big horsepower boost with a custom-designed turbo setup.
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PARTS USED IN THIS EPISODE:
Holley: Holley Sniper EFI XFlow - Black Ceramic - Part No. 550-541
More Info: pntv.us/pn_pt_15979_5e29c1216ee73
Performance Electronics: Wideband O2 Controller - Part. No. 50070102
More Info: pntv.us/pn_pt_15981_5e29c3364cc8a
Summit Racing: Turbo Parts, Precision Wastegate 46mm - Part No. PBO085-2000
More Info: pntv.us/pn_pt_15980_5e29c2f0a1729
The Industrial Depot: Tools, Hardware, and Shop Supplies

[@wymple09]

For all those in the comment section whining about the self imposed limiting, this engine is a mild daily driver. The owner will be thrilled with anything around 250 HP and 400 Ft Lbs of torque. And so would I. It's not going to the drags.

[@PatricioGarcia1973]

warren hymes it did 219 naturally aspirated, with the turbo should be close to 300hp if not over...

[@stinkmeaner3016]

They got the torque they came for. That’s good enough. The components that are still oem in the block won’t be able to handle much more. It’s a cool old school Chevy, not a 2JZ.

[@bigbluebrownbass]

I would love to see the potential HP/torque with a better lower end/rods/pistons and head/valve work. Full boost would be cool to see after all modifications, hammer it till it self destructs just to see the rating. ;o) By the way, I love seeing a strait 6 hopped up,,,,,,,v8's are boring after seeing this, thank's!

[@stinkmeaner3016]

mark jeffries agreed.

[@lilsammywasapunkrock]

I love torque monster low revving engines. My daily has 150hp and 270ft lbs. But if I had $5+k into a little I-6 with a turbo, id expect to make alittle more then a healthy v-8...

[@snakeboy256]

I'd like to see a similar build with the 300 big 6 from ford. That's a real torque monster no question.

[@robsorgdrager8477]

Some guys have been getting high 400 ftlbs at around 2200 rpm

[@MetalDrummer08]

I came here to say this

[@adamb136]

How about my 1970 gmc 250!

[@Shane-Singleton]

I had an 85 F-150 4x4 with the 300 and a 4-spd. I'm a chevy guy but I LOVED that little ford.

[@danielhillwick8430]

@@Shane-Singleton i miss my f150 300 6 w/5 speed.

[@hazysativa3045]

My uncle ran a 292 in his modified sportsman stock car back in the late 60s early 70s. He made his own manifold. The car set track records. That engine is legendary.

[@paulforester6996]

I love the torque on that engine. It would be nice to see what it would do, while towing in the mountains, with mileage data too.

[@rogerj412]

These old I6 engines are so underrated today, it's really sad.

[@sebastienceniceros3145]

Cause we've got dohc 24 valve engine like the 1/2J, RB, and various BMW engines.

[@philipandrew5643]

Just means there's plenty to be had!

[@chloehennessey6813]

@@sebastienceniceros3145 Neither is capable of 2500 HP on stock block, head and rotating assemblies. Chevy 6s, burning nitro, with turbos doing high 5 second passes in the 1/4.

[@genestarwind4610]

Yeah but the rebuild cost of a 8v isn't much of an increase and hard to justify

[@willwright3396]

I grew up with my uncle building these and blowing others off the toad. The torque is a beast on them.

[@danubiogm.9l746]

It's 6 cyl, my heart beats faster! These 6 cyl engines are very reliable and great for preparation, here in Brazil, the GM 250 engines in our Opala gain absurd power !! I loved the video!!! Congratulations!!!!

[@nissan300zxmike]

Six in a row makes em go !

[@pierrewhite5199]

damn you guys in Brazil and Argentina really know your thing, I've seen how the opalas move a daaaaaamn they are fast like any promod in the USA

[@jasonharlan6100]

I wish we could get the FI 250 I lines here

[@georgegriffith1755]

Good to see one of these inline 6's on the boost! You guys rock!

[@jeremylakenes6859]

Pois é! Os v8 Quase não existem no Brasil! Tem que quebrar um galho com 6 cyl no Brasil. Com uma opala da certo mesmo! Pega uma turbina de qual carro geralmente? Um s10? Diesel?

[@cesarbarrios1378]

Perfect program for the sunday in the moning.😎

[@MrTheHillfolk]

Haha yup, just like I used to watch these on TV. Only thing that hasn't changed is I still sit there in my skivvies and watch 🤣

[@mickromer6199]

Sunday cartoons for big kids

[@zqwas6306]

Sunday night :)

[@TwoAcresandaMule]

here I am

[@georgew.5639]

Straight sixes are torquey to begin with. This is incredible.

[@harrischroeder6763]

Are the numbers of pens in shirt pockets are equal as Military Rank Insignia?

[@OomGielie]

Pat's almost General :)

[@83jbbentley]

Very good comrade

[@roundrock63]

It's equal to motor building badassery

[@wadestanton]

Half of them aren't pens. No machinists must watch this channel.

[@markkinnikin283]

don't forget his tool belt

[@Str8sixfan]

That is such a fantastic set of numbers. Holy cow! Would be a great truck to pull a trailer with to pick up that next project car. This has been so fun to watch! Happy to see people out there not afraid to be a little different!

[@EfurdGarage]

How did i know you would have already seen this lol

[@Str8sixfan]

@@EfurdGarage haha... well I have an image to uphold

[@Brock_Landers]

Wow...first initial pull at 7.5 psi yielded 316 HP and 429 lb ft...that's an AWESOME result. Especially when you figure in the fact that it's running on a throttle body injection system and it's self-learning. I still remember the TBI setup on my 1991 S-10 with an Iron Duke, and that just shows exactly how far automotive technology has come in the past 30-40 years.

[@wakjob961]

Yeah guys...all the inline builds you wanna do...I'll watch em'!!!

[@drcannibalclown7497]

like the bit where he says it sounds like a skyline motor

[@searcher1957]

Great job guys. I love inline sixes...the torque potential from small financial input is excellent. I agree with snakeboy256...the Ford 300 was awesome. My Dad had a 1977 F100 with the carbureted 300 and three on the tree. It was a real stump puller and gave us fantastic gas mileage. The truck being a typical 70's Ford was a rust bucket and had all kinds of weird problems including cracked piston skirts but I often wondered what kind of torque monster it could be with the right massaging.

[@brian5606]

I really enjoy watching all the details and build process you guys put in your videos. Hats off men, keep up the good work.

[@anthonycoffey816]

I had a '67 Nova 4-door that had a straight 6 & powerglide. Always wanted to turbo it & put a 5-speed manual in it. Flat black with red interior it was a cool little gangster car 😆

[@stevenbaker673]

He said gangster

[@Jv19979]

My buddy had a nova from the 60s. Idk what kind of engine, but it was a inline 6. We started that thing with some really old gas. That thing smoked like crazy. Heck we took it down the road put new gas in it. Ran good

[@hensleyshobbies-doug7761]

Yeah man, I love those old 292 - 6 bangers, had a few of them myself! And that’s a awesome one y’all built there!

[@smorg12]

As someone from the UK.... WOOOOOOOO 6 BANGER!!!!

[@iisaac5750]

Thank you for the video. Currently restoring my 1965 c10. I love this idea and I think i will do the same.

[@widetrack1960]

I think it's awesome you guys are doing this with inline 6s. Just love it.

[@halleffect1]

awesome numbers for that old 6. I'd like to see what the spark plugs look like on #1 and #6 cylinders, see if they are leaning out. port injection would probably be a nice next upgrade.

[@maggs131]

1 & 6 are always lean guaranteed. There's no way around that without port injection

[@ranchurdhimster4955]

One of my favorite engines.

[@stevemcclaran4794]

Great show.I hope to put a big block in my 1 ton GMC dually one day.The more I see folks use the Holley efi setup,the more inclined I am to use it.Thanks for all of the info.

[@kelvinstrickland7442]

Wow,That is serious torque and horsepower. I have a 4.0 l6 in my jeep Grand Cherokee Laredo and would be very happy with those numbers.Great Job Guys Just Amazing!!

[@conner5611]

Finally I've been waiting for you to do a 292

[@jeremysmith1339]

I've always been a huge fan of the 292, felt it had tons of potential.

[@coreyjenkins3056]

My lil brother had a stock straight 6 in a 1977 Nova he beat 2 stock V8's. Those straight 6 pull hard in mid range! 🤜🏿🤛🏿😎

[@larryhutchens7593]

A buzzin half dozen. Those 292 I-6 engines were torque monsters. Long stroke, small bore. Worked on one out of a large (2 ton) truck that had steel inserts in the piston for the top ring groove, rotator valve spring retainers on the ex valves, & valve seat inserts on the ex valves. Built to take the punishment just couldn't handle much RPM. Truck drivers had a tough time switching from a V-8 to a I-6, they would try to rev the 6 up past the torque range & get frustrated. Just get it up to the mid part of the torque range then shift to the next gear & let the torque do the work. Enjoyed watching this build.

[@douglasames6495]

The real secret to these big inline 6's is to lighten the crank!

[@Perry2186]

ford should of kept the 300 I6 and turbo that

[@robsorgdrager8477]

Look up Barra

[@codyparker679]

The pickup 300 if you out a 6.5 diesel turbo in it you can easily hit 400hp stone reliably.

[@prevost8686]

Perry2186 I had one in a F250 with a granny 4spd. Much better work truck than the small block V8s of that era.

[@andyms76]

@@robsorgdrager8477 True, but ford never offered them in the US. Would have scavenged sales from the mod motors...

[@luciankristov6436]

We've got something far better than the 300 lol it's called a barra. And in ausi they don't LS swap lol the barra swap

[@MrStroller4u]

American straight six on boost... now you got my attention.

[@user-lr3cg2mf4h]

A long-forgotten gem of an engine. In the shop I worked during the 80's and 90's, we built 230 and 250 circle track engines as well as truck engines. Upgrading the flywheel bolts to 1/2 20's is a good idea on these engines. They also need to put a large washer with a flat head screw to hold the cam gear on. With this level of cylinder pressure, they better find another crank and bearings. After 50,000 miles the bearings will be gone. If they didn't put hard seats in the exhaust by the time the bearings are done the worn exhaust seats will take up all the travel in the lifters. Been there done that. I ran a .060 over 250 with 11:1 compression and 3.73 gears 60 interstate miles to work every day in a 1970 pickup.

[@RS-rn4ox]

Love seeing an inline build!

[@gregorycarter9352]

I’d like to see a Slant 6 Chrysler engine.

[@emanuelnamseth1469]

Great engine but the head has valves facing different than other engines. Bad flow in head until about 4500rpm I've been told.

[@JohnDoe-gz8dw]

Not a mopar guy, but I'd like to see it as well, hemi gets waaaaay too much attention, wouldn't make huge numbers, but interesting

[@ChRickenbacker]

They already did one.

[@ChRickenbacker]

kzbin.info/www/bejne/hZyaaJWYnsSKd9k

[@tallen4520]

Pontiac?

[@khudocsnurlson5222]

best episode ever

[@frankbiz]

Wow that was great. Thanks for posting this. 👍🏻

[@amadorpuente3956]

Pat wanted more horsepower. I love how jittery and excited he gets. Love this show

[@emilypeters8888]

thought I saw it as a turbo inline 8 and i was like what cool! this is good too though.

[@philtripe]

thats not something that would really work... the inline 8 had block strength problems without any power adders

[@iceman45ification1]

What a beastly little engine!! I've always loved inline sixes. It's a shame Chevy did away with them. You can't beat the smoothness, fuel savings and torque curve. Great video guys!! 😀👌

[@kierancarter8369]

Trailblazers & Envoys came w/4.2L inline 6. Thinking of grabbing one to throw into my daughter's 53 chevy truck we're going to start this year...but unfortunately they stopped making those too

[@iceman45ification1]

@@kierancarter8369 I remember them. Shame they quit making them too. I never heard anything good or bad about them. I guess that's a good thing. They made a 2.8 ltr 4 and a 3.5 ltr 5 based on the same design also.

[@crazylarryjr]

Chrysler is rumored to be considering a straight 6, for some cars and trucks. For the chevy purist, it might not help, but still a straight 6

[@konnerkramer329]

@@kierancarter8369 the 4.2l in the trailblazers are pretty garbage though. Make pretty pathetic power and have a ton of valve train issues. They lose oil pressure and wipeout bearings. I'd stay away from them if I were you the old stovebolt 6s are the way to go.

[@philtripe]

@@konnerkramer329 true that...lets just forget about that boat anchor

[@dano4572]

this is is the third or fourth time I've watched this,, and my little hairs stand up just like they did the first time from seeing that torque curve!!!!!! i need !!!!!!

[@doug3805]

Love this channel and the straight six!

[@mmarchmonte88]

Forgot to tighten up the spark plug gap post turbo install

[@screener545]

Only necessary when necessary

[@Alchemist37]

50hp per pen, that things a weapon :)

[@michaelmcfarland4227]

Great video! I was always impressed with the rare 302 GMC I-6 truck engine.

[@maggs131]

A friend of mine had a hunk of shyt 77 nova with this engine in it. It was the best part of that car and a few of us advised to keep it over the 307 he wanted to put in it

[@fernandopedroso987]

Watching from Brazil. I loved six in line my daddy have one, Opala the Brazilian Muscle car.

[@theeoddments960]

Some Brazilians make crazy numbers in those opalas definitely impressive for what they have

[@rogermarshall8991]

Is the Wayne head for the inline 6 still popular in Brazil ?? A great power adder just installing that type of head.

[@xxTheWhiteTiger]

@@rogermarshall8991 no, its a very rare and expensive head, we ussualy use the factory one, just machining the intakes and exhaust runners

[@xxTheWhiteTiger]

@@rogermarshall8991 i would say its arould 5 mounths of minimal wage to buy one...if you find one that is

[@thomaskimmel2215]

This is exactly what I wanted to see today :)

[@simplyfred8044]

Great ep

[@abc123546879]

You guys did awesome.

[@mehdiabiyat3509]

This engine (Torque) is perfect for offroading. What is the best way of getting more info about the parts used in this monster? Go 292

[@danielbargas3377]

That dude looks like Mack from its always sunny 😂😂😂

[@FreddyFunderbunz]

I was thinking the same shit

[@YoungHeartedSoul]

Finally, a build that is not common! This video is gold, makes me want to boost my 72 C10.

[@txnetcop]

That 292 is now Beast Material! NICE...it will make an awesome daily driver on that C-10!

[@VinnyMartello]

I'm building a naturally aspirated 250 for my 36 Plymouth. If you want real gains you chop out the intake bolt bosses and add "lump ports".

[@concordsst]

They did

[@VinnyMartello]

I imagine they would have.

[@myronstark4083]

I just had a. 292 come my way because I mentioned I was looking for one. ! To do exactly you've done to this one. AND I also have 65 to put it in ! BUT mine is a c-30 dually.

[@myronstark4083]

But is this application available in a kit. ?

[@tomsmith1222]

general rule--little cubes should go int o little cars to really go fast

[@john-pahlblatz256]

Great job again guys!

[@A.R.77]

Work of art come together. Wonderful work all involved! (Not sticking a clean rag into the exhaust port while scraping the old gasket off did make me a little woozy though.)

[@A.R.77]

Right into the turbo charger that loves FOD (foreign object damage).

[@roymiller7189]

They should do a 50’s 327 straight 8 from a Packard!

[@fireball5675]

I like inliners but they r short 2 holes The Buick BB IL ran 55 to 6 .5 . Two blocks,10 thou.laps

[@danhambrick6331]

376HP and 510LB FT TQ nice.....

[@wymple09]

Is it me? I never saw anywhere near that on the graph. Still impressive as hell.

[@kalijasin]

Truck probably for towing and hauling so they wanted a lot of torque.

[@lukepugh6334]

Sick build

[@georgechapman494]

Absolute monster! I love this dropped into a s-10

[@Truckerdaddy]

That 500ftlbs of torque is like playing with fire when it comes to cast cranks and cast rods. Them boys should've spent the extra cash and put forged pieces in because they knew they were gonna run boost.

[@ThePaulv12]

Are you a mechanical engineer?

[@joshgoodwin5283]

Stock rods aren’t cast. They’re a forging but are 1038 mild steel.

[@Truckerdaddy]

@@ThePaulv12 no, and it doesn't take one to know that stock parts are low quality and are meant for a certain power range. 500ftlbs of torque is really pushing the limits considering it barely made half that from the factory

[@jameshankssr466]

@@Truckerdaddy that motor can handle 500ftlbs of torque without missing a beat they are bullet proof

[@KlockworXMusic]

@@Truckerdaddy Actually the stock 12 weight crank is good up to about 1000hp if you lighten them up a bit. There are people making over 1000hp with these engines though, the Mighty6 guys run 8.4s quarters with their 292 truck and it puts over 1000hp down at the wheels.

[@FullTimePRO]

Teflon tape on the turbo oil feed XD

[@dk2614]

Exciting engine build

[@dougaustin6408]

Worked at a machining house from the eighties and build 292 intake and exhaust combos for UPS trucks. Remember machinery tag stating see oiling bulletin 9-12-1941. Thinking we built these until 1990's.

[@michaelvukich8138]

im a ford guy and like the 300 six more but its not a “real torque monster” compared to the 292... its literally the same output lol 160-170 hp and 280 ft lbs N/A for both engines and no real suprise since they are essentially the same displacement......

[@ILCapo-mo5jj]

Fantastic! Does anybody know where I can order this boosted engine as a turn-key crate engine?

[@isaacvlogs368]

I highly doubt it tbh

[@hugieflhr03]

That is just killer performance!

[@abbaby555]

Very impressive build

[@kalijasin]

510 torque 😳

[@zacharystorman2718]

Jezzzz pat. You got enough pens?

[@squatchpnw2331]

I love these inline 6 builds

[@lukepugh6334]

Topolinski's reactions to dyno runs is gold!!

[@gentilejoshsaved1646]

I thought that thing was going to shoot off the screen.

[@a2cryss]

This thing has the power and torque curves of a turbo diesel. That graph is a little wonky. It only shows ~337 HP and ~440TQ not 376 and 510

[@matthewritchie3595]

Saw that too lol.

[@thetasteofluck]

excellent job....keep up the good work.....

[@MrDiamondsatwork]

This is mind blowing. I have a falcon I was going to v8 swap but this makes me want to build the inline 6.

[@omegarugal9283]

i insist that undersquare engines must be tuned for torque, they are not good for revving

[@baby-sharkgto4902]

Not only do you insist but so does science.

[@nolanmcevoy2547]

Eh. The 5.8 trinity used in the gt500 is under square by about half an inch (3.68 bore and 4.17 stroke) and it’ll rev to 7k all day.

[@baby-sharkgto4902]

@@nolanmcevoy2547 thats actually called oversquare and promotes high reving.

[@omegarugal9283]

@@baby-sharkgto4902 is a V8 isnt? those can rev up ok, inline6 not much

[@PistonAvatarGuy]

@@baby-sharkgto4902 Look at those dimensions again, that's an undersquare engine. You're are correct that oversquare engines are better for revs, but the limiting factor is piston speeds, not the bore to stroke ratio. The longer the stroke, the higher the piston speeds at a given rpm.

[@ironhead2008]

I'd pay good money to see a Pontiac OHC I-6 build like this... Stick it in, say, an earty 70's base model Firebird with a six speed trans...

[@RickBaconsAdventures]

I have the OHC engine but for now it's gonna go into a squarebody truck to test it. Starting with a buick T type turbo, we'll go from there. I have already done some testing with the pushrod chevy with good results. All draw through though, I prefer it. There are a couple videos on my channel of some pretty basic tests with the pushrod engine. I'm hoping to get started again on the project soon as I have just finally moved my shop

[@SGTJDerek]

I'd think those would be just a little on the rare side now a days. Unlike the 292, 300, 225 & 4.0, they didn't build millions of them. Technology has finally caught up, as in semi- affordable, and made Turbos a legit option. We've always known they're the great equalizer. The means to control them was just so out of reach.

[@fambuild]

Good stuff!

[@apachecamel4974]

Not enough 292 build videos out there, love it!

[@shaadydog1]

They don’t fit into anything and are heavy...

[@jdrok5026]

@@shaadydog1 they arent that much taller than a 250

[@DavidGarcia-uz3ox]

Do Ford inline 6 300 Turbocharged! Everyone wants to see that. Even more impressive would be as close to stock, how much can the i6 do compared to the Chevy 292.

[@dillon8987]

Nah supercharge the 300

[@hawkdsl]

Literally everyone with an I.Q. over 75 doesn't want to see, or hear, about Ford products. Please stop this talk! Think about your Mother!

[@DavidGarcia-uz3ox]

@@hawkdsl lol

[@johnhill7480]

@@hawkdsl Idk looks like the majority of the comments are not about the results of the 292 but the request to do a 300. We all know the Ford 6 already won the longevity test.

[@hawkdsl]

@@johnhill7480 Drugs, fatty foods, the wrong woman even... Has made you so delusional, that there may be no hope for you. Good luck man.

[@tdmfan750]

I'd love to see y'all do some work with the 4200 I6, since a certain network that shall not be named requires a subscription to watch more than 5 minutes of their video on them. (if you know, you know.)

[@SGTJDerek]

You and me both. I used to watch all their shows but when I couldn't even get Logged in for the free trial, tried creating a profile a couple of times, I said the hell with it.

[@1080sucks]

Don't get me wrong, loved the build. Ozzies do some amazing things with 265 inch 6 cylinders as well. worth a look.

[@ufcwescodmobile1199]

This is a classic episode man !

[@chivo400ss6]

Saludos desde argentina,fanáticos del Chevrolet 6 cilindros en línea 💪😎

[@juanignaciolozano4005]

Aguante el Falcon papá

[@juanf4739]

Thank you for keeping it all USA made! It matters!

[@lukegale717]

Whys that?

[@anthonyraines5951]

@@lukegale717 because buying American keeps Americans at work, it keeps money circulating in our country, it helps our economy and especially in times like this we need it

[@208flatbedOO]

You guys rock!

[@justinriley8651]

I'm glad you did a chevy inline everybody else does the other companies inline . inline 6s are great they make awesome torque and are great on gas. impressive numbers on stock parts.

[@maggs131]

I'm just so glad to watch a c10 getting something, anything other than a freaking LS Swap. 🤢. I'm so sick to death hearing that term parroted over and over and over like it's the best unique thing.

[@mikezanassi207]

You should build the chevy 4.2 inline 6 from the trailblazers next and compare new vs classic.

[@jeroenschuuring6060]

The turbo wouldn't have been able to sustain boost, seeing torque go down in the last pull. You might have gotten 400hp but thats maxing out the turbocharger with all risks comming with that. Nice power though.

[@TheFoxygrandpa69]

Yeeeeees. Got a 66 c60 3ton with the 6. This was the combo I wanted to do....and they did it for me! Super awesome 6! Cant wait. Itll still be slowest and slower with my gears lol.

[@brooklyncarsandcoffeehealt4329]

A Other Fabulous Build for the Team👏Again, Great for a Everyday driver💪

[@cwjarvis3]

Do you have a video on the Ford 300?

[@sstevocamaro]

That thing is making 5.9L Cummins Diesel power 💪

[@BuzzLOLOL]

Hot Chrysler 440" V8 power!

[@Brian-uy2tj]

I've very happily owned several chevy trucks with the 292 I6. They are designed to be a torque monster at low RPM's. I bought one that was running bad. Did a tune up still not running great. Then I adjusted the hydraulic lifters... it was hard NOT to chirp the tires after that (100% stock engine) Very dependable too. These engines were even used in 2 1/2 ton trucks.

[@hawkdsl]

Second go around because this is so cool... I'd like to see a follow up on how the real world drive ability is, and what kind of gas mileage it's getting. 500+ ft trq is insane.

[@davenelson1571]

What??? Amish Mike not wanting to break 400hp, this years breeding season must have left him very fatigued!!!

[@yeetisthefetus7214]

It kinda did sound like a skyline motor

[@jeffweaver7011]

"Shut your trap" LOL Seriously though, I have to agree with you.

[@yeetisthefetus7214]

@@jeffweaver7011 haha yeah it is very very close to it. Like if you had that truck next to a skyline and they both reved and I didn't know what motor it was I wouldve said it has a skyline motor in it

[@jdrok5026]

@@yeetisthefetus7214 I mean Toyota did use the family member of this engine in their cars. Not that that means anything lol just a fun little tidbit

[@yeetisthefetus7214]

@@jdrok5026 huh thats cool

[@jdrok5026]

@@yeetisthefetus7214 yeah the Toyota variant is between the 250 and 292 in a lot of ways kinda a hybrid motor that is weird

[@marcot.8250]

Turbocharged Chevy straight sixes are very common in Brazil, we have plug n play turbo kits for them here.

[@InTheDogHouse3DPrinting]

One of the best I-6 engines ever produced. Second is the I-6 Ford 300 inch five-liter. They are bulletproof and make tons of torque at a low RPM.