Description
Supercharger base gasket to manifold. Made in the USA by JB Performance. Fits Holley/B&M/Weiand/Mercruiser 256. Will not swell with different fuel types. It also works very well with insulating against the heat soak from the supercharger.

Whipple 100AX, 140AX, 175AX, W3A, 140R bearing plate 