We have been working with the people at JE on our pistons since 1978. Through our racing engine research and on track experience we have continuously modified our designs for better performance. We won four SCCA National Championships using the same piston designs you can now buy off our shelf. Professional engine builders all over the world use our pistons.

*Add core charge of $80.00.  This will be refunded with  return of your good core 84mm liners.

This 85mm, 11.5:1 piston set is simply a 1mm oversize version of the 84mm 11.5:1 piston. The advantage is that the extra 50cc of displacement makes 7-9 bonus HP. It is the most popular street performance piston available because of this feature. Standard liners can be bored to 85mm. All sets come with standard weight wrist pins (109 grams) and rings.