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No this thing cracked either when i bolted down the head(installed arp head studs and torqued to 90 ft lbs per arp) or after starting the engine, when i pulled it from the truck originally it was for a head gasket on the drivers side, no external leaks, this crack is external above the starter...

frustrated

Engine assembled, installed in truck added lift pump relay, pmd relocate kit, and oil cooler lines from Leroy Diesel, bled injector lines, was chomping at the bit to get this thing running, turned it over and it started right up, let it run for about 30 minutes with no leaks, after a few more...

Engine is back in the truck now it's a c1500 i would like to install an aftermarket down pipe, but all the ones i can find, say that it will not fit the c1500 chassis. Does anyone know of a brand of aftermarket down pipe that will fit or can be modified to fit the c1500? My current down pipe is...

Yes they all came up to torque, but had 5 turn a little. I backed one of the bolts off and removed a stud, the loctite had not fully set. put more on and retorqued. i appreciate everybodys help here as this thing is a love hate relationship.

Need opinions before i go any further with this, after chasing threads on the block with thread chaser, cleaned with brake cleaner and compressed air then cleaned up studs with brake cleaner and then with soap and water. Installed the arp head studs with blue loctite thread locker i ran the...

Thanks for all of the replys, heads have arrived will be doing the clay test as they get installed today or tommorrow.

sctrailrider, i have done this test on a sbc with solid lifters before will this work with the hydraulic lifters on the 6.5 or do you need to be rotating the oil pump also while doing this so the lifters dont collapse?

Thanks Will L for the look, I have looked at everywhere i know to look and i have found no information on this, there has to be a published number somewhere. I will have the new heads this friday, guess i will bolt em up and hope for the best.

Did not find specs in military pdf, anyone know of a gm manual that can be purchased that has these specs?

Thanks for the response, i did reuse the original pistons though. will move forward with the build.

New to the forum here, have a 95 1500 escb pulled engine to repair a blown head gasket, discovered that it had been leaking a while, deck on number 7 was pitted, pulled engine down, had block magnafluxed and decked both sides .011 in to clean up. Reassembled short block with new bearings,rings...