6.0L Power Stroke Engine and DrivetrainDiscussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.
ARP tech support in Ventura, CA has some really helpful engineers. I've called them twice on other cars and they were always good for an answer. Does Ford call for Loctite in the block like some aluminum blocks. Is there is a set height above the deck for the 6.0? On my P-car blocks sometimes they can turn when torqued throwing off the torque value if not set in Loctite.
I've asked myself the same question.....how is it possible a third time with with ARPs and fire ringed heads? The 2nd time was with ARPs alone that were added the first time after stock. It IS NOT A COOLER ISSUE....trust me. AS for warped heads, these were fire ringed heads from Elite..... would think they were flat when installed. I had an injector problem for about 18 months (installed with the fire ringed heads) and HG's held but was very inefficient and very hot not making power correctly. Finally had to go back to stock injectors..... first long tow of 10Klbs up 6% grade making efficient power on stock programming I blew coolant. Now, if towing and I go above 20lbs boost it will blow. My hope at this point is the heads weren't torqued correctly. ARP says 265 is good with the fire ringed heads. Going to try that first one bolt at a time without removing heads and see. Ford won't touch it at this point because it is all aftermarket.......even though there first stock repair under warranty failed the first time I towed afterwards. Only other thing I can think of is that it is a bad block or just plain lemon motor with some undiagnosable reason it keeps doing it. 3 times just doesn't make sense.......with ARPs and Fire Ringed Heads and no cooler issues.
Im in the prosses in replacing head gaskets for the fourth time on customers truck,blown 2 times on warrenty and once now with arp studs,block is straight,heads are warped badly at #4 cyl and #5 cyl ,replacing heads with complete new heads from ford this time hope its cured now, only made it 44,000km
You NEED to get the heads and block checked for flatness. If not, you might as well go out in the middle of the street and light off 500 $1 bills. The best head gaskets and studs can not cure flatness problems.
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