10 Most Reliable 6-Cylinders Which Run Forever

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'lifecouldbeadream' by future james

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This video is fair use under U.S. copyright law because it is transformative in nature, uses no more of the original than necessary and has no negative effect on the market for the original work.

- Credits -

“Ford 300, 4.9L, Performance” by Brian Theos

“My 1927 ford 300 i6 hot rod build first fire up.” by J Mack

“Cammed Ford 300 Inline 6” by John Graves

“850HP RB30 Skyline R33 GTR LaunchControl Test” by Nissan Skyline R32 R33 R34 GTR

“Nissan Patrol rb30 turbo blow off valve offroading 4x4” by Go4x4

“RB30DET Drift Pure Sound” by ZP Drift

“AMC 258 Straight Six Engine” by veggiepowered

“Clifford 6=8 performance” by Bill Newman

“Jeep CJ 7 AMC 258” by mikergong

“Mopar rumble 300hp slant six II” by steve szabo

“225 Slant 6 freshened up” by IGotYourBack

“Slant 6 With A Cherry Bomb” by RustBucketProductions

“1963 Dodge D100, slant super six drive” by Jacob Githens

“NA Toyota Supra MK3 on ITB's walk around @itb_dro” by stayTUNED

“Toyota 2JZ Engine NA Video Aristo JDM” by Akina Racing

“S13 2JZ sound” by ITS Racing

“Supra na-t 2jz-ge turbo” by MrMahons22

“Bmw e34 525i (M50) 1991 & driving” by patrick7800

“BMW E36 325i M50 Turbo First Startup RHD” by Andeep Dhanjal

“BMW E30 M50 engine” by djhulstijn

“BMW M3 E92 M50 Turbo - BMW Vrakoviště Chotětov - Zestino Drift Challenge - Autodrom Sosnová” by JeTma

“Barra Engine” by BA Parts

“EF Falcon - BA Engine” by ashman04

“Ford AU Falcon 4.0 I6 with Redback Exhaust” by Jacob O'Brien

“S13 barra dyno” by Matt Dawson

“W114 om606 sleeper” by Daniel Reading

“Mercedes OM 606” by Андрей Голод

“Mercedes W124 300TDT OM606” by Anders Linder

“Jaguar 4.2 XK 6 Engine, Triple 2" SUs, Open Manifolds” by James Ganderton

“300 bhp Jaguar E-type 4.2 Litre built by Lex Classics - Full HD video with spectacular engine sounds” by ClassicarGarage

“Jaguar E type great exhaust sound” by lsprime

“Buick stage 2 V6 startup” by sst3728

“1988 Buick Century limited 3.8 V6 exhaust sound” by jahoood

[VisioRacer]

Hope you are all having a wonderful Christmas holiday. In advance, I want to wish you a Happy New Year as well. Having a nice evening!

[MercM]

I've had four vehicles with the 7-main bearing AMC inline six. Rugged and dependable. Thanks for featuring it!

[ducfandan]

Happy to see you included the AMC-designed straight six that was used in Jeeps for decades. That sucker really is bulletproof. I worked in auto parts years ago, before becoming a engineer, and guys who had Cherokees or Wranglers with the old 4.0 straight six seemed to have the fewest problems. Only stuff they’d some in to buy was stuff that aged out like hoses or belts when they got old and dried out. Otherwise just basic maintenance. Spark plugs, cap + rotor, wires sometimes, the usual filters. We never sold much in the way of “hard parts” for those engines, because they just ran and ran and ran. I don’t think most people rebuilt them until long past 200k miles. When they did need work, they were very easy to work on.

[Hankbob_Hillpants]

The inline 6: perfectly balanced, as all things should be

[joelstatosky]

The inline 6 being perfectly balanced yet simple is without a doubt the best way to make the most reliable engine possible. I actually desire to design my own i6.

[ericbraun]

Glad to see the Buick 3800 made your list. I used to build and drag race 1986 and 1987 Buick Grand Nationals and T_Types in the late 80's. I could get 750 hp out of that engine with bolt-ons. We didn't have to do anything in the crankcase... just turbo, intercooler, injectors, fuel pumps, computer, wastegate, intake/exhaust plumbing and heads. We got well into the 10's on street tires. And they never blew!

[HomebrewSubaru]

The Ford 4.9 Inline six is well known as an indestructible engine. I knew of one that ran with rod knock for years. Gutless, had common distributor issues, but I don't think I ever saw one fail.

[Richaag]

Had a 225 Slant 6 in a 1975 Plymouth Scamp. The engine was bulletproof, which is a good thing because the rest of the car rusted out right around it.

[senorkaboom]

I worked in a service station in the mid-70s and we had a customer who drove an early 60s Valiant with a slant 6. I can attest, that engine was indestructible reliability. The guy kept the oil changed, gave it regular maintenance and tune-ups, and replaced worn parts. But that engine never failed or broke and burned less than a quart of oil between changes, if that. Chrysler needs that engine today.

[steves]

I'm glad you mentioned the Australian barra, beautiful motor.

[rafaellastracom]

After graduating from university in 1995 I bought a brand new BMW 325IS with the M3 sports suspension. What a car. I decided to see what I could get out of the 2, 494 cc M50 keeping the stock camshaft. Software, Supersprint headers, exhaust, underdrive pulley, cold air intake, larger throttle body, fuel pressure regulator, and much more. End result... 245 hp (crank) at 6, 300 rpm and 205 lb-ft of torque at 3, 900 rpm. Running it with the rear-end off the automatic version (3.91 vs 3.15) yielded 0-60 times in the 5.7 second range. I´ll never forget pulling out of a toll booth heading down to Philadelphia alongside a new E36 M3 with the 3.2 liter. We went for it and I stayed with him up to about 100 MPH. At the next toll booth he rolled down his window and said, ¨Geez, what do you have in that thing?¨ to which I replied ¨ A tuned 2.5 liter NA¨. Glory days.

[SoundFaithStudios]

Relax people. The title says "10 most reliable" (TEN), not the ONLY reliable 6 cylinder engines in existence. There are plenty of other great reliable 6 cylinder engines to be named that didn't make this list. The guy isn't going to make a hour long video of something that can be split into multiple videos.

[aussiebloke]

Glad you included the Barra. Seems not all that many people outside Australia know about it, and it is a phenomenal engine that can take major power upgrades without needing to strengthen the bottom end at all. :-)

[luisenriqueortegastenzel]

Just straight 6's. BMW knows why they don't build V6's 🤞🏽

[hughjass]

292 Chevy should at least get an honorable mention, great 6 cylinder engine

[sundstrom]

I love that 300 Ford hot rod in the beginning, it's so unusual but so great at the same time.

[BrodieBr]

Ah great choices here...I can vouch for the AMC straight 6 (later mopar 4.0) and slant 6. I've had 8 of them in the family (6 AMC, 2 Slants) from a Gremlin to Jeep Cherokee XJ. 6 out of the 8 lasted over 300K miles, and ALL of them were running well still with all original hardware before the vehicles had to be scraped due to rust.

[dennishagans]

The dodge slant 6 was one of the best engine ever developed.

[alextepozteco]

The nissan L series engine was extremely reliable, mine ran until 400, 000 miles before I rebuilt it after a lot of power lost and excessive blow-by

[rangerrick]

Glad you didn't miss the GM 3800!