Allstar Performance GM HEI Replacement Red Distributor Cap 6020BU Vise Jaw Inserts are a

Vise Jaw Inserts are a must for race teams

Steel cup bolts to internal thread jack bolt and keeps 5" or 5-1/2" spring centered to the jack bolt

4 is also available in a 2-piece version

Buckle attachment in front

Smallest shell

Allstar Performance GM HEI Replacement Red Distributor Cap 6020BU Vise Jaw Inserts are aDistributors have high output coils and adjustable vacuum advances, perfect for upgrading stock HEI distributors for higher RPM. Fit small and big block Chevy (except 348 and 409). Housings are CNC machined 6061 T6 aluminum with an upper support bearing to provide accurate timing at higher RPM. Include snap on spark plug wire retainer and instructions. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of