pushinfreight

Because of some internal issues the motor is coming apart and getting forged internals. So my problem is this, I have a high compression motor now ~11.7:1 and want to know how to choose the right piston to replace what is in the stock bottom end. I want a flat top design but I do not know if the standard valve releif cut will be enough. I am also going to change over to a Trex cam. So any suggestions?

Beast96Z

iTrader: (21)

How much are the heads that are going on this motor milled? Most forged flat top pistons have -2cc reliefs. These measure out at roughly .150" deep. If you don't think that is enough, I've seen some -4cc's that were roughly double the above depth. What compression are oyu wanting to achieve?

pushinfreight

The heads are the one that is on the motor now. As the motor sits is a stock bottom end with a 236/230 cam with about .600 lift and 11.7:1 comp.. Just want to make sure that with the bigger cam and lift I choose the right pistons. The clearance as I am told is close now with the current setup in respect to p/v. I would like to stay close to 11.5:1 comp ratio.