COMP Cams 4643-1 Valve Spring Locator 1.540" OD x .640" ID x .060" Thick

The COMP Cams 4643-1 is a precision-machined inner diameter (ID) valve spring locator designed to correctly position and seat valve springs on the cylinder head. Spring locators prevent lateral movement of the valve spring, reduce wear on the spring and head, and ensure consistent spring pressure and alignment throughout engine operation.

This locator measures 1.540" outer diameter, 0.640" inner diameter, and 0.060" thickness, making it compatible with specific valve spring and retainer combinations used in performance and racing engine builds. Proper spring locators are essential in high-performance applications where precise valvetrain geometry is critical to power output, reliability, and longevity.

Key Features:

• Outer Diameter: 1.540"
• Inner Diameter: 0.640"
• Thickness: 0.060"
• Precision machined for accurate spring seating and alignment
• Prevents valve spring walk and lateral movement
• Reduces wear on cylinder head spring pockets
• Designed for use with compatible COMP Cams valve springs and retainers
• Sold individually

COMP Cams is an industry leader in valvetrain components for performance, racing, and street applications. The 4643-1 spring locator is an ideal choice when building or refreshing a performance engine that requires precise valvetrain geometry.