I picked up a set of used 87.5mm CP Pistons for a K24 stock sleeve setup. I talked with one experienced builder and he said to run what CP calls for, which is a .0035" P2W clearance. I have researched a little and found that some people do not like that and think it is a little to tight and they run theirs at .0040-.0045" with good results. That was with B series engines though.

Anyone in here have experience putting together a K24 with these pistons? If so please give me your opinion and what you like to use for P2W and what you like to use in the ring gap dept too.

The engine will be more of a street engine and will be run on gasoline. Ethanol is not available near me. I will be using a PTE 6765 and it may get a race gas tune in the future.

 

I think it is too tight.

 

Agreed, its too tight for that bore, power and fuel.

 

.0035" seems to be too tight according to the two guys that have posted. Who has experience with the K series engine and what sort of clearance should be ran for my setup?