Breathing new life into the 318 in the Scamp!

I checked these heads out on a caliper with retainers and seals on and it toggled around .500" in seal clearance between intake and exhaust.

I haven't clay checked, but maybe I will. I don't think it will be an issue. 340 pistons are notched, but they are a closer deck piston.

I'm going to check install height on the pistons to be sure and do some math. I'm not using tight gaskets or anything.