6.4 rocker arms. lifters, high mileage?? - Ford Powerstroke Diesel Forum
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Old 09-29-2011, 06:17 PM
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6.4 rocker arms. lifters, high mileage??

Getting ready to buy a second truck for my business doing long haul boat transport. I have an 02 F550 7.3 now and I love the truck..............more to the point I TRUST the truck. I had been looking at a couple different '10 F450's but then started reading about rocker arm problems, stuck lifters, broken pistons, etc. So I know about oil growth, DPF, and fuel system problems with the 6.4's but hadnt heard much about other problems until recently. If I got a 6.4 truck I would plan to do a DPF delete, change the oil every 5k, and change to fuel filters every 5k also to be safe. I could put 70k+ miles per year on this truck.............most of it towing 12k+ lbs 1500 to 2000 miles at a time. Are these engine not up to the job of heavy hauling and lots of mileage?

I started thinking I'd be better getting a 6.0 truck and do the studs, gaskets, EGR delete, and oil cooler. From what I've been hearing I'd have more confidence in that than a 6.4 if this stuff is true. I'd really like to get another 7.3 truck but finding a 7.3 550 crew cab Lariat like I have now is not easy.............never mind finding one in good shape without a million miles.

Anyway, thanks in advance for any advice.
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Old 05-24-2012, 06:22 AM
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I have a 2008 with 130k on it. If you do a DPF delete you might as well do head studs at the same time because the head bolts will stretch and then you have more promblems also when going back on with the heas you might as well replace the rocker arms because the break as well.
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Old 05-24-2012, 06:39 AM
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Mine got over 180K on it and running strong, its all in how the owner takes care of it and maintains it. I don't care what you drive but if you beat on it daily and don't maintain it well it will break.
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