Description
4500 Carburetor Base Gasket. Made in the USA by JB Performance.
- 1/8″ thick. Thicker than most gaskets to minimize heat absorption into carb.
- Bolt pattern: 5.375″ x 5.375″
- Open center.
- 4 barrel Dominator style.
- Part number 130178
Also fits B&M, Holley, and Weiand 177 Superchargers, Mercruiser 525SC.

Replacement drive coupler pins 35mm long
Whipple Supercharger oil 200ml, 3.3L (200R, 200AX, 3300AX, 3300R, W4B), 3.4L 210AX, 245AX 4.0L
Input shaft wave washer 52mm
Front rotor bearings 