Piston to head

How much clearance do you need. I here .030 all the time and was shooting for that. Ended up with .024 will this be enough? I'm using a .042 copper head gasket. This is a mod motor I'm hoping to turn it 8500-9000 rpms.



You can fool some of the people some of the time
The Kid sprint class uses the WF engine and you are allowed to have .035" pop up using the stock head gasket with a compressed thickness of about .045' and it seems to work OK.