SKU: PACPAC-L8131-16
UPC: 193564537218
MPN: PAC-L8131-16
The 11/32 Valve Locks - Mini 8 w/Radius Groove from PAC Racing Springs is a precision engine component designed for high-performance and racing applications where valve train stability is critical. Valve locks secure valve keepers to the valve stem, preventing valve float and stem slip during aggressive cam profiles and elevated RPM operation. These mini locks are engineered for 11/32-inch valve stems and feature an 8-degree angle geometry, making them ideal for both street performance and competition engines requiring reliable valve control under demanding conditions.
Constructed from durable steel and finished in black oxide for corrosion resistance, these valve locks incorporate a radius groove design that enhances keeper engagement and load distribution across the valve stem shoulder. The 8-degree angle is engineered to match standard valve keeper geometry, ensuring proper seating and minimizing stress concentration that can lead to premature wear or failure. PAC Racing Springs' precision manufacturing tolerances guarantee consistent fit across all 16 pieces in the set, critical for balanced valve train harmonics and uniform spring pressure distribution across all cylinders.
These valve locks are essential for engine builders, performance technicians, and enthusiasts rebuilding high-revving engines with aftermarket cam profiles. The Mini 8 specification is compatible with standard 11/32-inch valve stem applications commonly found in small-block and mid-size performance engines. Installation requires a valve spring compressor and familiarity with proper keeper seating technique; each lock must seat flush against the keeper radius to prevent valve stem damage and ensure optimal performance during engine operation.
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