We offer shelf parts in 86.0, 86.5, and 87.0 bore sizes- Compression ratios at Flat Top (~9.25:1), 10:1 and 11:1 for std turbo engines - piston kits include Premium Rings at 1.0 1.2 2.8 sizes and std turbo pins good for 25-30 PSI - Round Wire lox . For Heavy Duty pin upgrade use part number P222350200H Or P222350250H for max power- we offer prices for pin upgrade and straight purchase *Pistons will fit K24 engines or viceversa, compression changes by approximately 1 point
