boots6868

got a 86 gt 5.0, had the e6se heads on it with flat top pistons. I am putting gt40 p heads on this. i realize the stock heads suck. was wondering if i kept the stock pistons with the flat top would i have clearance on the p head valves, seems like i could gain compression over the cut pistons. I do have trw forged pistons on hand to put in they have the valve cuts. any input would be appreciated.
Im putting in an e-cam as well.
rockers are rollers w/f72 stamped on them. im assuming they are 1.7 proforms.
thanks guys

mjr46

you'll need to clay pistons and mock set it up, there is no bolt on a pray for the best, buy most likely you will run into issues with your plan.

NotchAbove

With the bigger valves, the extra lift, you are more than likely going to have a problem. You need to do as mjr said and setup with the clay and see the p/v clearance, if not its a total gamble.