Originally Posted by
DazC
how do you know xe pistons will give you 7.4? Thy're for i highish power normally aspirated engine which usually means high compression. Whats the difference between the xe pistons and the let pistons that are normally used?
Let have bigger dish for lower comp but both have the same forge markings. + XE pistons dont go to the top of the bore there is about a 2mm gap.