bitches!

LS block with what head? with a GSR head its like 13.0:1 compression, and it will blow, the pistons will not clear the deck height , they stick out of the hole. IE the pistons will slam into the deck of the head, and overtime, pound the rod bearings out of the rods, thus spitting arod out your block.

CTR pistons belong in ONE engine, and thats the CTR motor. IMO