Originally posted by Leonard
The stock blocks split down the lifter valley from the thrust load because there isn't enough webbing. The mains aren't the weak point, so beefing them up with a girdle won't do shit except help hold it together when it goes *pop*.
I know personally someone that has split 3 blocks and all of them have started at the mains and worked their way up to the lifter valley and 2 of them didn't make it all the way to the lifter valley. I like to beleive the theory that the block cracks because the main caps "walk" under high load situations, and that causes the cracks to start in that area. I have never seen a block that was cracked in the valley and not in the main area but all that I have seen have been split in the the mains and some did not even make it to the lifter valley.
Briane
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Red 93 GT with only 9000 original miles on it.
HP Performance Stage 1 Street kit with 60mm turbo
Car Pics
11.29 @ 126 mph 16 psi
16 lbs of boost 509 rwhp/626 rwtq
12 lbs of boost 433 rwhp/571 rwtq
********STOCK MOTOR*******
