A steel retainer under a high-lift, high-spring-pressure setup adds reciprocating weight the valvetrain has to control every cycle, and at sustained high RPM that extra mass is what causes float. Titanium cuts that weight out while still holding up to the load, without the chance of splitting that a lightweight steel piece would carry.

AFR 8515-16 Titanium Valve Spring Retainers Features:

• Fits small block Chevy and small block Ford applications
• 7 degree lock angle for 10 degree valve locks
• 1.245 in. outside diameter x 0.885 in. inside diameter
• Designed for use with AFR 8017 and 8019 springs
• Standard equipment on AFR SBC LT cylinder heads
• Requires AFR #9007 bead lock keepers
• Titanium construction
• Set of 16