Kuvaus

3-5/8″ big bore. With ‘type A’ style gaskets. Includes two of each in .005″. .010″. .015″ and .020″ thickness. These are specialty copper base gaskets for mechanics that want to achieve a specific compression ratio. Type A gasket explained: Type A’ gasket is the early type introduced on the 1984 Evolution Big Twin models. and can be used on all of the 84-99 Evo Big Twin models and will follow the contoures of the cylinder base perfectly. They will fit 86-22 Evo XL. but stick out at the cylinder base.84-99 Evo B.T. with 3-5/8 big bore cylinders (NU)