Product Description
Michigan Motorsports Titanium Retainers & Locks for .660 Dual Valve Springs
Lightweight Titanium Valvetrain Upgrade for LS Dual Spring Applications
The Michigan Motorsports Titanium Retainers and Locks for .660 Dual Springs are designed for high-performance LS engines running aggressive camshaft and dual valve spring setups. By significantly reducing valvetrain mass compared to steel components, these titanium retainers and matching locks improve RPM stability, reduce valve float, and enhance overall valvetrain reliability.
Precision-machined to fit most common 1.270"–1.300" dual valve springs, this setup is fully compatible with popular spring kits from BTR, Texas Speed, and PAC. Each retainer weighs approximately 8.5 grams, or 11 grams with locks installed, making them an ideal choice for serious street and race LS builds.
Key Features & Benefits
- Titanium Retainers & Locks: Complete matched set designed for high-lift dual spring applications.
- Reduced Valvetrain Mass: Lightweight design improves high-RPM control and reduces stress on valvetrain components.
- .660" Lift Compatible: Ideal for performance camshafts requiring strong and stable valve control.
- Precision Machined Fit: Outer step diameter of .925" and inner step diameter of .670" for proper spring and lock engagement.
- Complete Engine Set: Includes 16 retainers and matching locks for a full V8 engine.
Compatibility & Fitment
- Engine Fitment: 4.8L, 5.3L, 5.7L, 6.0L, 6.2L LS-based engines.
- RPO Compatibility: LS1, LS2, LS3, LS4, LS6, L76, L92, L99, LQ4, LQ9, L33, LSA.
- Spring Compatibility: Fits most dual valve springs including BTR, Texas Speed, PAC, and PAC 1206X–1208X spring sets.
