Quote:
Originally Posted by PatrickfromMD
Good info to know, but are you saying that GM has addressed this issue with the Camaro LS3 and L99 motors? also, are you saying the Pistons cocked over to the side from the high combustion pressures and thereby stressing the sleve till it cracked? Was the fix to modify the pistons?
More info please. (I wonder if the issue was further addressed in the LSA and L99 pistons?)
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Yes, the pistons were so far down the bore that on direction change they cocked ever so slightly and overstressed the sleeve. I know on the LS7 they went so far as to modify the piston skirt. I have heard that the "new" versions (2009 and later) of the LS3/L99 have also been modified to alleviate this problem - haven't been able to get exact details how, just that it has been addressed.