1.400 TI Valve Spring Retainers - 8 Degree

PAC Racing Springs 1.400 TI Valve Spring Retainers with 8-degree geometry are precision-engineered titanium components designed for high-performance engine builders and racing enthusiasts. These retainers manage dual valve springs across the 500 series platform, delivering the lightweight strength and thermal stability critical in competition and performance engine applications where valve train reliability determines race outcomes.

The 1.090-inch inner diameter and 0.695-inch outer diameter step geometry maintains precise spring seating and locating surfaces essential for consistent valve lift and duration across the RPM band. Titanium construction reduces rotating mass compared to steel retainers, lowering overall valve train inertia and improving high-RPM stability while resisting thermal degradation at sustained elevated temperatures. The 8-degree angle is optimized for specific cam profiles and rocker arm geometry in small-block and mid-displacement engine packages. Each set includes 16 retainers for complete dual-spring installations on eight-cylinder engines.

These retainers serve engine builders preparing race vehicles, circle track competitors, bracket racers, and performance shops requiring repeatable spring control in high-output naturally aspirated or boosted platforms. Applications range from small-block Chevrolet and Ford builds to other architectures running the 500 series spring package. Proper retainer selection directly impacts power delivery stability, valve float thresholds, and component durability under aggressive valve train loading.

PAC Racing Springs is recognized within the performance engine community for manufacturing precision valve train components that meet OEM tolerances and exceed reliability expectations in competition environments. Verification of fitment and clearance with your specific camshaft, rocker arm system, and spring combination is essential before installation.