- Performance sets designed for a piston replacement
- Includes every gasket, o-ring and seal required to rebuild a top end; valve seals, head, base, exhaust, tensioner, and other misc. gaskets and o-rings
- Does not include formed rubber valve cover gasket
- Formed valve cover gaskets are included in complete kit with oil seals
- High-compression kits use .012" thick base gaskets to raise compression
- Cost-effective way to raise compression without expensive high-compression pistons or cylinder head work
- Made in the USA
