Designed for ultimate strength and locking force High Energy and Magnum polylocks are best for moderate lift and spring pressure Applications Hi-Tech Polylocks work well in all high end Race...

High Energyâ„¢ Aluminum Polylock with 3/8" Stud diameter. This 1.125" tall polylock fits our 3/8" High Energy Die Cast Aluminum roller rocker arms. Perfect for moderate lift and spring pressure...

COMP Cams' part number 4631-8, High Energy Aluminum Polylocks, 3/8"-1. High Energy™ Aluminum Polylocks with 3/8" Stud diameter.

High Energyâ„¢ Aluminum Polylocks with 3/8" Stud diameter. These 1.125" tall polylocks fit our 3/8" High Energy Die Cast Aluminum roller rocker arms. Perfect for moderate lift and spring pressure...

Designed for ultimate strength and locking force High Energy and Magnum polylocks are best for moderate lift and spring pressure Applications Hi-Tech Polylocks work well in all high end Race...

3/8" High Energy Poly Lock Perfect for moderate lift and spring pressure, this High Energy polylock fits 3/8" stud rockers.

Designed for ultimate strength and locking force High Energy and Magnum polylocks are best for moderate lift and spring pressure Applications Hi-Tech Polylocks work well in all high end Race...

3/8" Magnum Poly Lock Tapered for extra strength in locking points, our Magnum polylock is 1.300" tall with a .612" diameter for use with 3/8" stud rockers.

7/16 HI-Tech Poly Lock The best polylock for high end race applications, this Hi-Tech polylock is designed for 7/16" Ultra Pro Magnum and Ultra Pro Magnum XD rockers.

High Energyâ„¢ Aluminum Polylocks with 7/16" Stud diameter. These 1.125" tall polylocks fit our 7/16" High Energy Die Cast Aluminum roller rocker arms. Perfect for moderate lift and spring pressure...

High Energyâ„¢ Aluminum Polylock with 7/16" Stud diameter. This 1.125" tall polylock fits our 7/16" High Energy Die Cast Aluminum roller rocker arms. Perfect for moderate lift and spring pressure...

High Energyâ„¢ Aluminum Polylocks with 7/16" Stud diameter. High Energy Aluminum Polylocks, 7/16"-1