Power piston retainer clip, New

***This item is no longer being reproduced****   The early Quadrajets utilized this clip to hold the power piston in place.

Power Piston retainer, New

The old original retainers are broken or shrunk, and don't hold the power piston in place as they should. This new split retainer solves that

Power piston return spring set with retainer, New

Set of 3 power piston return springs. Match these from lightest to heaviest to work with your engines vacuum level at idle to improve idle and off idle performance. Comes with new split plastic power piston retainer. Light (orange) is designed to be...

Power piston return spring set, New

Set of 3 power piston return springs. Match these from lightest to heaviest to work with your engines vacuum level at idle to improve idle and off idle performance. In the picture, light is on left, medium in middle and heavy right. Light (orange) is...

Power piston return spring, heavy strength

 New Power piston return spring. heavy strength to work with your engines vacuum level at idle to improve idle and off idle performance. This was the most common spring for very early Quadrajets that didn't have the APT in base.

Power piston return spring, light strength

 New Power piston return spring. Light strength to work with your engines vacuum level at idle to improve idle and off idle performance. This spring was commonly used in factory high performance applications. It can also be used for engines with...

Power piston return spring, medium strength

 New Power piston return spring. Medium strength to work with your engines vacuum level at idle to improve idle and off idle performance. This was the most common spring for power piston return. Designed to be down position at 9" and rise at 7" of...

Primary Rod retainer spring. Early style, New

This springs holds the primary rods in place on the power piston. This style was used on early style Quadrajets

Primary Rod retainer spring. Later style. New

This springs holds the primary rods in place on the power piston. This style was used on later style (75 and newer) quadrajets with APT screw in main body.