Quote:
Originally Posted by geeteeohguy
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.
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My first Pontiac was a 64 Lemans with a 66 389 and Muncie. The only thing I ever did was put oil and gas in it. I drove it as my only means of conveyance for 4 years. I agree, mild stock parts probably don’t fail as often, but find OE quality stuff now. It’s pillar or post. You can buy 500 roller lifters and hope for the best or you can buy 1200 buck Crowers and still hope for the best. The Chevrolet fire I mentioned was a stock 89 Jimmy that windowed the block for no apparent reason and severed the fuel line onto the exhaust. Freak accident I agree and I was able to save it from total loss but there are no guarantees is my point I guess. I could build it back milder but what’s the fun in that?