justacommonrail24v
Region: US
Friday 02 October 2026 21:24:47 GMT
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Tanner Thompson :
Ok you hate ford since 6.0. Let us know how you really feel lol
2026-10-05 22:40:53
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ThatCubKid :
We need Josh 6.4 contenttttt, Only thing about the 6.4’s is there’s really just a small group of guys that still even actually know anything about them vs people just reading off all their flaws from the internet, it’s like 1 out of every 50 6.4 owners know that only the late 07 early engines with first batch MAP 1 defected pistons ever had genuine cracking problems not related to regens (all were recalled) MAP 2-3-4 had problems with trucks getting stuck in a regen cycle that constantly dumped fuel into 7-8 cylinders which would wipe the engine out with diluted oil, cylinders, etc, and then at the time, spartan/H&S canned delete tunes were adding timing (19°+) and injecting fuel directly at the fuel bowl lip which mixed with spiking cylinder pressure, would also crack the pistons, lifters and cam failures aren’t all that common, it never fails to be from a lack of maintenance or people thinking T5 rotella is a “good” oil, the stock cam has a aggressive intake lobe angle which isn’t perfect, but will run a long time with good oil, the lack of iron in the factory cast heads have been a problem since the first 7.3 power stroke, but wasn’t much of a problem in the 6.0’s or 7.3’s compared to the 6.4 which made so much more heat with the compounds and regens, the fuel systems never had any problems that wasn’t self inflicted from people running their trucks out of fuel or running water in the trucks, That problem is with literally any modern diesel.. you didn’t mention the coolant cavitation problem that would let the water pump cavitate coolant in the front cover and eat through into the crankcase, and again, was caused by people neglecting their trucks/running coolant without ELC/additive. My 08 was deleted with less than 88,000 miles on it somewhere in 2009-2010, it ran up to 249k miles before the hp charger bent the shaft and decided it wanted no more spinnage, truck has a stock power tune on it and was always serviced by ford dealers, it’s got 0 blowby and no doubt it would run forever if I treated it to do so. Pretty much every 6.4 problem minus the cam/lifters, isn’t even the engines fault, it’s solely up to the owner and how well they maintained their trucks
2026-10-03 03:20:46
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Danny :
Weird how the only people shitting on 6.4s are the people who’ve never owned one
2026-10-05 18:54:11
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Rivers :
6.4’s are junk everyone in this comment section is coping
2026-10-04 02:00:56
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redrum3g :
hey josh question for you, what year of 6.7 would you go with to build a drag truck and what factory ecm would you choose.
2026-10-05 19:23:19
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nico :
L5P was 2017 bud it’s done now so not 10 years onto the L6P now
2026-10-03 01:52:36
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wickedgears272 :
that was a solid honest opinion, that as a 6.4L guy, i wont disagree with. they had plenty of problems. but I also think as you mentioned in regard to the L5P, maintenance was a large issue and aftermarket common rail tuning was in its infancy compared to today. that L5P though is many years ahead of a 6.4L but you wont see me getting rid of mine anytime soon 😉
2026-10-02 21:36:35
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Imlandonurnot :
One day I’m gonna find a nice 6.0 someone’s dumped a fortune in on sale cheap and I’m going to buy it 💪 I’ve always wanted a perfected 6.0 just don’t wanna build one myself
2026-10-04 14:19:50
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Jerm :
Bought the dream 6.4 to tear it apart for another project
2026-10-03 01:25:12
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Trevor :
As somebody who is not a GM guy in the slightest bit, what did they change with the LIP that makes the bottom end in your opinion so much better? I really like the bed plate design of my 6.4’s
2026-10-04 01:08:49
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jp011988 :
Truck for truck there’s no comparison… except I like coil springs over ifs. Don’t forget There was plenty of SBE 6.4’s north of 1khp compound or single. Look into elite diesel and Maryland performance. Yes spartan was a spicy dirty tuner but tad,tsd, GH, kem, id speed shop had the 6.4 game on lock. Back when the 6.4 dominated the diesel power challenges. Devil dog huh? I’ve been to 29palms a few times. Don’t recommend it 😅
2026-10-04 16:24:29
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CougarBait :
so, 5.9?
2026-10-03 01:30:11
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nofucksgiven, Texan, USMC Vet. :
I love this beast.
2026-10-03 21:04:33
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kolt3n_br3kkas :
We love 6.4’s over here but you hit the nail on the head man, they are DOGSHIT. Every time I turn the key, I sweat like a whore in church. The L5P is a better platform in almost every aspect. I do prefer a built 5R over a built Allison tho
2026-10-04 17:56:39
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Logan Gill :
Realizing Josh is an ole devil dog. Erahhh and semper fidelis brother
2026-10-03 17:33:36
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quantumg3579 :
6.4s in my opionon weren't problematic like the 6.0 they were misunderstood and quality of materials used for repair parts were really sensitive and the pistons just didnt like heat cycles. lifter and cam issues are debatable as far as root cause of failure but still a notable issue and the factory cam is a choke point. now the l5p is a great design as are most durmaxs but they all have their Achilles heal. everything bolted to an l5p.seems the be 2nd Gen cummins quality 🤣engine good everything else gayyyy
2026-10-03 00:25:15
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user6473284841830 :
6.4’s always cracked cylinder heads. You couldn’t find a rebuildable core around 2015 when I worked on a lot of them. rocker arms where a terrible design. Don’t forget about the headgasket issue and turbo issue as well. Fully emission trucks you couldn’t keep an engine in them past 100k because it would crack pistons.
2026-10-03 04:16:52
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Jordan :
I honestly must’ve got lucky. I’ve had a 64 for the past three years I drive it every single day and I beat the living shit out of it on a I am a diesel mechanic. I do change my oil every 3500. I do my fuel filter every pm from Ford 290,000 and climbing hopefully I didn’t just jinx myself 🤦♂️
2026-10-05 19:21:41
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