Piston Compression ratio question...GSR to LS--->
well in a type r C5 motor, it would be about 10.7 or so... add .2 to that, and you've got about 10.9-11 CR in a GSR if im not mistaken...
it should be but also if you do that remember the valve releifes are bigger in the intake side of the gsr so you may want to fly cut the piston
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