Butler Performance Inc. » Butler Performance

Butler Performance, a name synonymous with High Performance, specifically traditional Pontiac engines.

Browse Rocker Arms and Accessories Products

Items 1-5 of 5

Description: 7/16 Rocker Arm Stud and Polylock Upgrade Kit for 389-421 61-66 Heads(Set/16)

Item #: BPI-Upgrade-Rocker-Studs-Polylock-389-421

Condition: New

Price: $114.95

Description: 7/16 Rocker Arm Stud and Polylock Upgrade Kit (Set/16)

Item #: BPI-Upgrade-Rocker-Studs-Polylock-350-455

Condition: New

Price: $80.95

Description: 7/16 Rocker Arm Stud and Lock Nut Upgrade Kit for 1961-1966 389-421 Heads (Set/16)

Item #: BPI-Upgrade-Rocker-Studs-389-421

Condition: New

Price: $82.95

Description: 7/16 Rocker Arm Stud and Lock Nut Upgrade Kit for 1967 and later heads (Set/16)

Item #: BPI-Upgrade-Rocker-Studs-350-455

Condition: New

Price: $49.95

Description: These replace Press In Studs on 389 and 421 heads, Set of 16

Item #: SPE-RAS3-STUDS

Condition: New

Price: $139.95

Items 1-5 of 5