Quote:
Originally Posted by 64speed
Well I have the heads and the forged rotating assembly. The cam is screwed. Paul Carter picked that cam specifically for my gear,trans,tire height, it was perfect….but it was rowdy. I think a rev limiter and this never would have happened unless it’s was a crack that would have eventually failed regardless. The car is/was outstanding and will be again. Isky is fixing the cam and Wayne will do his thing. Good thing we are friends and I can make payments
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Have never seen lifter bosses break off of a block on a stock Pontiac in 45 years of playing with them and other engines. Have never seen a cracked boss on a stock block either.
What about the rest of you guys? My gut tells me that the aftermarket parts are the cause of this failure.
When I was in the auto industry, 99% of the time when something failed, it was the 'upgraded' aftermarket part that caused the failure, not the factory engineered and designed part. This was just as evident when I was in the Model T club as it is here and on the Corvette and Tundra forums.
I see a lot of money being spent on engines and running gear that doesn't even make 1000 miles before it explodes....usually due to poor quality parts.