pistons try your local parts outlets but if thats a "no go" try www.taperformance.com , they are listed there . phone #480-922-6807 . del
The regular replacement forged pistons are available through several parts vendors, and we now have available a top of the line forged light weigth piston made by wiseco, it's a lightweight deal with valve notches and 1/16 inch rings. check it out at www.paeenterprises.com