Quote:
Originally Posted by CosmicBrut
I have a question anthony, it might have been answered already but I'm curious. Do you have to cut valve reliefs in the pistons when you put the g6x3 in a ls3 with stock heads? Also if you put the g6x3 in a l99 motor(of course changing the lifters and getting rid of the cam phaser) how much can you raise the compression by milling the stock heads before ptv becomes an issue?
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If you keep the engine stock, LS3 or L99, the G6X3 fits just fine without fly cutting the pistons. If you are wanting to go to a thinner gasket, and mill the heads, yes you will have to cut the pistons for it to fit.