PRW Poly Lock Sets

Secure Valve Train Adjustment with Race-Proven Precision

PRW Poly Lock Sets deliver dependable valve train control through precision-machined steel construction and a dual-locking design engineered for consistent lash settings under high-rpm conditions. Built to support performance street and racing engines alike, these poly locks provide reliable thread engagement, stable adjustment, and long-term durability even in demanding applications. With PRW’s focus on manufacturing accuracy and quality materials, they offer confident fitment and repeatable performance for builders who require precise valve train adjustment and dependable hardware.