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Stabilize Your Performance Valvetrain with PRW Power 12-Point Poly Locks

Upgraded valvetrain components can make a big difference in engine performance. Install a set of PRW Power 12-Point Poly Locks and find out for yourself.

PRW Power 12-Point Poly Locks are a major upgrade over standard nuts, which are prone to drift due to thermal expansion and vibration. PRW Power poly locks are precision-engineered and CNC-machined to deliver greater valvetrain stability; smooth, accurate, and secure adjustments; and a stronger grip for long-term use in high-performance applications. Plus, the 12-point design makes them easy to work on in tight engine bays.

Other features include:
• Manufactured from 8740 chromoly steel for strength and durability
• Flush-machined locking set screws to firmly set adjustments in place
• Shouldered design that provides positive wrench engagement for quick adjustments

Sold in sets of 16, PRW Power 12-Point Poly Locks are available for 3/8-inch (.550-inch O.D. shank) and 7/16-inch (.600-inch O.D. with .550-inch undercut) rocker studs. They’re made to fit full-roller-style rocker arms.

FIND A SET OF PRW POWER 12-POINT POLY LOCKS FOR YOUR VEHICLE