6.0 piston question LQ4/LQ9
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6.0 piston question LQ4/LQ9
Ok now I know the LQ4 is dished and LQ9 is flat top.. Question is how big of a dish? I have a 6.0 new that I'm putting in a 99TA and with a borescope I can see a small ridge around the edge of the piston and its fly cut also. Is that a LQ4 style? or is it the higher compression LQ9 that required valve reliefs.