BTR Brian Tooley Racing Titanium Retainers for LS/LT Beehive Valve Springs | BTR-SR007-16 | Fits 1997+ 4.8 5.3 5.7 6.0 6.2 LS1 LS3 LS6 LQ4 LQ9 L83 L86 LT1 LT4 Engines (Retainers + Valve Locks)

The Brian Tooley Racing Titanium Retainers (BTR-SR007-16) are designed to deliver maximum strength and minimum weight for LS and LT high-performance valvetrain setups. Manufactured from premium-grade titanium, these retainers are a direct-fit replacement for GM #10166344 and compatible with all LS and LT beehive-style valve springs. The reduced mass improves valvetrain stability, allowing engines to rev higher without valve float while reducing spring stress and wear. Ideal for naturally aspirated, boosted, or high-RPM builds, these retainers are compatible with OEM GM, LS6, BTR SP011, SK018, TSP .550", .585", .625", PAC 1218, PAC 1219, and Michigan Motorsports .600" beehive springs. Each set includes 16 retainers, offering professional-grade quality and performance trusted by top LS and LT builders.

• Ultra-Lightweight Titanium Construction: Reduces valvetrain mass for quicker engine response, improved RPM stability, and reduced spring fatigue under high load.
• High-Strength Performance Design: Titanium retainers resist deformation under extreme heat and spring pressure, delivering superior reliability for street or track builds.
• Comprehensive Spring Compatibility: Works with OEM GM LS6, BTR SP011, SK018, TSP .550–.625", PAC 1218, PAC 1219, and Michigan Motorsports .600" beehive springs.
• Fits All LS and LT Engines: Designed for 1997+ GM LS1, LS2, LS3, LS6, LQ4, LQ9, L83, L86, LT1, and LT2 engines—ideal for valvetrain upgrades and performance rebuilds.
• Complete Set of 16 Retainers: Includes sixteen precision-machined titanium retainers to upgrade both cylinder heads—backed by BTR’s unmatched racing reliability and quality.