These Six-Cylinder Engines Were LITERALLY Hard to Kill..

[@kellismith4329]

My old F150 with 300 I-6 has 450k and still going strong, great engine

[@markdubois4882]

The Ford 300 and the slant 6 are "kill it" motors....they don't die.

[@jefferysill5539]

NASCAR Outlawed the straight 6 355 as the v8s had 355s claiming unfair advantage, Lol

[@3o2Boss]

I blew up a 225 in an 80 dodge Mirada, lost oil pressure. Oil pump kept locking up. The replacement I pulled out of a 61 duster, had a bad exhaust.valve, so I'm not so favorably impressed with them. Did have a super 5 In a 77 aspen though, it ran great!

[@shabadoo24]

The old pushrod straight 6 engines were hard to kill. The 258 AMC

[@jadenamoako5731]

the gmc big block deserves a spot. those were very reliable 6 cylinders

[@sandasturner9529]

I agree

[@outinthesticks1035]

I think it was just to uncommon, I was working on school buses in late seventies and GM rep tried to talk us into using them . Problem was all parts had to be special ordered , no one local kept any

[@kurtbarrett6785]

I happen to be a Mopar guy, but I have nothing but love for GM's 3.8/3800 and Ford's 300! It may seem kinda cockeyed but, I have to laugh every time I hear how great the "leaning tower of power" is! I think I'm probably the only one who's had two of them grenade within a two year period. One was in a 70k mile one owner Duster, that I had all maintainence records for and it puked the #6 rod right out the oil pan. It began to rattle out of the blue, on flat ground cruising down the freeway and didn't even hold til I could baby it a half mile to the next exit. The second was in the same car, with the engine plucked from a 110k mile Scamp that I got from a 90yr old lady who wrecked it and it also had meticulous maintainence records. Like deja-vu, it jettisoned the #5 and #6 rods on the same friggin freeway, but this time I was pulling a decent hill as I tried to get to an exit. With that, I swore off the 225 Slant Sickness!

[@phillipgarrow2297]

A lot of school busses had the 300 Ford 6 cylinder

[@3o2Boss]

No, I've owned 3, and 2 were junk, one ran great.and.held together.

[@Tigerfire75]

This presenter has never heard of the Jaguar XK engine. It was first used in 1949 to 1992. It was used in sports cars, saloon cars, race winning cars, fire engines, limousines, tanks, and even boats. It was a very reliable engine for all those years and way ahead of it's time. If you get 40 years out of an engine that was designed in WWII you have made a legend.

[@timothykeith1367]

The 4.2 Jaguar blocks can crack. A new block casting was produced a few years ago to correct that

[@JosephCowen-fz8vj]

My god you missed the best six of all ! The Ford Australia Barra 4.0 Turbo 24 valve , factory standard 436 Hp , variable valve timing and lift. Not bad for a motor that started in 1960 at 144 ci and evolved through the years , in production untill 2017 . 1200 hp stock bottom end , well over 3000 hp with all the good bits , they even make billet blocks and heads now as well as forged stroker cranks to take it out to 5.1 litres .

[@jmfitzpatrick1731]

The Australian developments of the Ford “Thriftpower” 6 cylinder comprised a range of remarkable powerplants. Since Ford Australia (unlike the US) focused on rear drive cars, they were able to continue development of the inline six, rather than switching to the V-6 configuration necessitated by front drive. They were popular in taxi service, running on LPG. I know of one taxi which ran for 600,000 miles without any attention other than scheduled maintenance.

[@FrancoPreo]

I’m not even a Ford fanboy but the Barra is legendary and makes the Buick 3800 seem like a piece of throwaway crap! Just look at the ribbing on the block castings and you’ll understand the inherent strength of these things and why they can take such extreme conditions before they’ll break!

[@repnatl]

GM 3800 was amazing. Especially the L67 variant. Just like honda v6's, the transmissions are why ppl junk them.

[@johnlyle1127]

The Jeep 4.0 engine actually started life at AMC in the 1964 Rambler Classic 232 engine. Was updated over the years. The Buick 3800 V6 started in the 1962 Buick Special/Skylark. Later sold to Jeep which became AMC and AMC sold the engine back to GM for the 75 Buick compacts. Both were sound designs that lasted through the years and changes.

[@jamesfarrar5773]

300 Ford 6CYL was used F-600 2ton trucks, had a customer that put 400 sq. bales of hay,had a set of rear dollies. 196 1966

[@dennisyoung4631]

The 250 Chev 6 is a decent one. So is the slanted six. Have had both.

[@romulascott]

The Ford 170 to 200 inline 6 was produced from about 1960 to about 1985. Easy to work on. Also the AMC 232 inline 6 was produced for years.

[@lyndongordon2518]

That series of small block Ford inline six cylinder engines (not the 240 & 300 cu. in. big block inline sixes discussed in the video) started out as the 144 cu. in. (2.4L) Thriftpower six, and eventually got to a displacement of 250 cu. in. (4.1 litres). Ford Australia took the design even further in later years, with cross-flow cylinder heads, EFI, SOHC, and ultimately (a mostly “clean sheet” design) the mighty 4.0 litre DOHC 24 valve “Barra” inline six, which is arguably more reliable and capable of generating more torque & power reliably than any of the engines mentioned in the video. 🚙

[@johnkelly8525]

This engine is not much good but the 250 , 4.1 is ok

[@davidrochow9382]

In Australia the Valiant 245 and 265 were pretty much indestructible.

[@badazz2969]

Gm surplus v6 engines definitely deserve a spot. Available in a 3.1l, 3.4l, 3.5l, and 3.9l. I personally have an 07 equinox with the 3.4l that is heading to the scrapper because the alternator took a shit and the trans is slipping sitting at 428k miles and never even had a valve cover removed.

[@marksoldier4640]

The ecoboost v6 does not deserve a spot in this video. Nothing but problems from water pump to timing parts and others. UPDATE: I am incorrect on this. The majority of ford cyclone failures are ecoboost, although any fwd (transverse) models are subject to water pump failures. I still insist cyclones don't belong in this video; the n/a (non turbo) are still shown to be reliable.

[@prevost8686]

It should be on the list of engines to avoid.

[@UPINSMOKEAUS]

​@@prevost8686 Spot on mate there garbage❤

[@gradystephenson3346]

Ur complaining every problem every manufacturer has

[@deborahchesser7375]

Using plastic everywhere doesn’t help either. As a mechanic I know what comes in the shops more often than others. Don’t by a Dodge or a KIA I’ll stop there 😆

[@Tigerfire75]

Are they continuing to use it even with all those problems? Seems to me that is the definition of hard to kill.

[@markchapman2585]

Loved my old 1993 F150 with the 4.9 inline 6. Thing wouldn't die even when I scrapped it still ran great. She just rusted out on me. Joys of living in the Rust Belt.

[@MrTheHillfolk]

I saw another video where comment or said that they have a rev limiting device. They pop all the pushrods out if you overrev them. Then I remember when I was like 9 years old that my farmer neighbors kid did that and tried to romp it thru some mud with a hay load. His was a 69 model with the 300. 20mins later ,pop them back in and off ya go. That thing lived a wicked hard life , when I was about 14 it started eating a main bearing and the squeak noise was horrendous. Still ran that sucker another 4yrs for hay season.

[@charlesdiggs5297]

I feel the same about my 97 grand marquis with the 4.6.It ran so well but the body just rusted away,it was a sad day when I had to let it go

[@sandasturner9529]

Could've repurposed the motor as a a generator engine

[@markchapman2585]

@sandasturner9529 There are other engines from GM Ford for generators

[@twatdidusay304]

The slant 6 did not start out as a 225hp engine, it started out as a 225 c.i.d. engine. Edit, the smallest slant 6 is a 173 c.i.d.

[@markdubois4882]

@@twatdidusay304 The slant size came in 3 sizes. 170, 198, 225. The 170 was first. It was stroked to 198, then stroked further to 225.

[@twatdidusay304]

@@markdubois4882 ahh, 170 , cool 👍. Couldn't quite remember, just knew it was 170 something . Also, thanks for reminding me of the 198, I forgot all about that one. Easy to do since every slant 6 I've seen or owned was the 225. I guess it's cause every one I've seen were in trucks. "Edit" Thanks for the correction and the reminder of the 198👍👍. By the way, what Mopars came with the 170 and 198? If you don't mind me asking.

[@cliffkemp]

My 69 dart had that motor, 225 cid... wish I had kept it. It ran great. 3 speed auto.... no cat, should have turboed it, mildly to up it to around 300. Only 135-140 stock, 3.7 liter, long stroke, if I remember correctly, it was around a 4 inch stroke with over 200+ ft-lbs. Re-ringed with 12 lbs of boost with a Garrett 3071 would be perfect for power before breaking too much 😊

[@montegomadness]

​@@twatdidusay304 the 170 was introduced in 1960 for the Valiants and later Darts. It was replaced for 1970 by the 198. The 198 was also a Dart/Valiant entry level engine through 1974. The 225 was also introduced in 1960 for full size cars and later in mid size. It was also later an optional engine in Darts and Valiants. The 225 was available in cars through 1983 and trucks through 1987.

[@twatdidusay304]

@@montegomadness thank you for the info 👍. Kinda wondered if anyone would tell me. Even though I could look it up, I still haven't 😁. Ahh so the trucks only got the 225.

[@fposmith]

The Ford 300 inline six was also used in most airport ground equipment. Not only was it used in baggage cart tow motors, it was also used in larger units to tow 747''s around the tarmac, and it pushed most widebody aircraft back from the gates !

[@psalm2forliberty577]

Mercedes-Benz m112 V6 used from roughly 1998 - 2005 is a FABULOUS Durable & Reliable engine. Any Benz reading 3.2 or 320 on the decklid or hatch in that year range has it. Mine is in a 2000 e320 Wagon (w210 in MB "code") 270,000 miles & going strong. Just got 27 mpg on a cross country trip. Same as she ever did !

[@susiedyer3260]

In my opinion Ford had the .300 inline 6 and in my opinion was and still is a work horse of an engine it had a really great bottom end to it and coupled with 4 speed tranny u had urself a power house that would last a million miles and the u have the greatest inline 6 ever made cause u just can't kill theses motors and this engine has such a unique sound when being started and if u haven't guessed it here it is it's the Mopar slant 6 best fkn motor ever made pound for pound can't nothing touch it except the f.300

[@williamoneal2763]

The GM 3.8 (3800) is bullet proof. They have two main, minor problems, upper and lower Plenum gaskets and the plastic coolant elbows....this is a minor problem to replace. Even if you find an old 3.8 in junk yard the engine is probably still good. Probably because old body rust, bad transmission or accident put it in junkyard. My current 94 Lesabra that I bought when new has 400,000 plus miles but I have taken great care of it. I get many request to buy it from strangers. Nope, it is a keeper indeed😊😊😊

[@cozzoli39]

Dodge 3.8 and 3.3 are pretty hard to kill

[@Wayhot440]

I've always been a fan of the 3.3.

[@3o2Boss]

And 3.9

[@cozzoli39]

@@3o2Boss definitely 3.9, I had one in a ram van and it was slow but it always started up and it ran pretty good

[@marksoldier4640]

My dad has a 2024 mega cab 3500 with that Cummins motor. Are you sure they are discontinuing it? Not only that, it's not up to 600lb ft. It's actually up to 1050lb ft. That's what my dad has.

[@sandasturner9529]

Your dad just gained cool points for owning that truck

[@65merc390]

@ 7;18 in the video those are ford F,E motors going down the line

[@JohnEvans-ct6mz]

3.5 ecoboost was not in the Fusion or the Mazda. Old Fusion sport had the Duratec 3.5, Mazda CX-9 had the duratec 3.5 or 3.7, CX-7 had the the 2.3 Turbo 4 cylinder. The newer Fusion Sport had the 2.7 ecoboost. The Taurus SHO had the 3.5.

[@deborahchesser7375]

I’ve always had good luck with my Hondas(bikes too) and Toyota’s, as an average blue collar guy my sh#t had to last. Oh yeh, the Big Six300 Ford was bulletproof, I’ve seen dozens with 300k plus on the clock. Runner up, the 4 liter Jeep 258 🐾✌️🇺🇸

[@DaddySeebran]

Chevy 3800 and 4100 are gold

[@marcelgaud]

The Chevy 235 Cu in.

[@MisterDearly]

I feel like you missed the Ford Duratec 3.0. Mine has 240k. It was a Porsche design. You will see tons of older Ford Escapes on the road with this engine.

[@The_Future_isnt_so_Bright]

3800 SERIES 3 was the last iteration of the GM 3.8l v6

[@lrvb7279]

The AMC 4.0 engine started life as a 232 c.i. engine in 1964.

[@chevyboyforlife4234]

The ford 3.5 is one of the worst engines...timing chains was horrible....I've owned a few and had nothing but problems

[@fatmike8819]

MercedesBenz 300 diesel, arguably the most reliable inline 6 ever

[@Tigerfire75]

Was it an inline 6 or was it an inline 5

[@kennydee8296]

I have often wondered if the Jeep 4.0L six is related to the 4.0L/4.3L straight six used in Australian Chrysler Valiants from 1970 to 1980, they look very similar and were also good strong performers with great reliability one 4.3L version having triple dual throat Webers for the RT version vehicles.

[@brucethecurmudgeon8538]

My Cummins 5.9 24 valve truck has 646,000 trouble free miles on it. I am going to get rid of it when it hits one million miles.

[@paulb.6570]

I love the V6 in my Toyota Avalon.

[@videomaniac108]

I think the Nissan VQ37VHR that is in my 370Z is a great engine.

[@toldroyd1]

The Cummins inline 6 was NEVER a factory option in any Nissan truck. You really need to reexamine your notes. They did offer a 5 Liter V-8 Cummins but that is a completly different engine than what you are talking about.

[@Arkansasfestus]

300 6 ford and 292 gm 6 just unkillary

[@w.christophersikora7346]

4.3

[@moeru1994]

Wrong. It started with the 170cui slant, not the 225cui

[@JVHShack]

The Nissan Titan XD had a different Cummins engine, a 5.0L V8. From what I've heard, it was a boat anchor. Not very reliable.

[@JamesHGroffSr]

Its a big SHAME HERE that FORD MOTOR COMPANY DOES NOT get CREDIT HERE but I as an Auto Body Tech and mechanics i worked with allways said how the 3 liter ford V6 was bullet proof engine.I have two of them one truck is an automatic and mine is a 5 speed stick shift?Personally for me and my wife the 3 liter V6 is and dam good engine you will wear out Transmissions and clutch pressure plates before you blow the engine.Its real simple mantinence just change engine oil and filter EVERY 5 thousand miles and air filter.OHH DAMN i had to put a NEW RADIATOR in after 200,000 miles?Thats another thing, KEEP YOUR COOLING FLUIDS CLEAN AND USE DISTILLED WATER WHEN REPLACING. OH buy the way HAPPY MOTORING FOLKS AND DROP ME A CARD,LET ME KNOW ARRIVED SAFE AND ALL THAT BULLSHIT?

[@chadbernasconi5880]

I've see cummins with 500k plus miles all the time in my kenworths

[@ebinmaine]

At 7:29 you show an Explorer suv. When did they have a 300 CI straight six???

[@jumpsuite]

I think this guy has a problem with understanding what reliability is

[@chadbernasconi5880]

3800 had crappy intake that leaked

[@JohnEvans-ct6mz]

Only the series II non-supercharged. EGR tube between two coolant passages, very dumb. Series I and III had aluminum plenums.

[@georgewetzel4380]

You LITERALLY misuse the word LITERALLY.

[@Anthony-pq8dc]

General motors two ninety two general motors two fifty

[@marksoldier4640]

Not the vcm! That's not the most reliable. the non-vcm 3.0, 3.2, and 3.5 are the most reliable j3x engines.

[@crippleguy415]

MACK 237

[@VQ_matt]

No VQ???

[@richardp6178]

You weren't doing too bad until you got to Jeep 4.0 and Ford EcoBoom!! Both are completely junk engines.

[@toldroyd1]

Cummins was caught cheating on their emission tests forcing a recall on sold pickups and a stop sale order on all 2023-2024 pickups. Just go by any Ram dealership and see the glut of heavy duty pickup trucks they have on their lots. Look a little closer and you will find they all have Cummins engines and they can't sell you one at any price! Is it any wonder that they aren't continuing to use Cummins engines. Face it, Diesel engines are filthy and belch out Nox and HC's from their tailpipes. Too bad they last a long time as it just means more poisoning stuff into the air we'd like to be able to breath.

[@joesutherland225]

Less fuel burn per mile equals less pollution per mile .

[@christopherpotomski8463]

Still less polluting to produce oil for those trucks than it is to mine the lithium for any electric car.

[@PaulHayman-tq5kb]

You can weore a4 cylinder out but can't weore a 6cyclinder out

[@andrewanderson9896]

You are definitely not a car guy, just reading from a script. You mispronounced so many names, and the "buick 3800" is not buick, it's actually the general motors 3800. Gm owned the engine and all the brand and model the engine went into.

[@3o2Boss]

Buik designed and produced that engine. They just happened to be owned by GM as well.

[@Tigerfire75]

Well it was designed by the guys at Buick. I mean you aren't a car guy since you don't know that. I mean why do we call it the Oldsmobile Rocket engine, the Chevrolet small block, or the Cadillac Northstar?

[@Camopar87]

The 3800 is an overrated piece of shit. My first one lasted 137k before it started a rod knock. Second one made it to 50k then blew a head gasket. My sister had a Grand Prix that had a bad lifter tick. Another relative had a Bonneville that didnt last all that long either

[@christopherpotomski8463]

Probably not keeping up even on basic maintenance then.

[@Tigerfire75]

You know you have to maintain them they don't do it themselves. Everyone I have seen has gone over 250,000 miles

[@KING-LEO]

The Chrysler slant 6 started as a 170 Cid then 198 Cid and then 225 cid.get it right!