1.300 Valve Spring Locators .565 ID 16pk

The 1.300 Valve Spring Locators .565 ID 16pk from Straub Technologies Inc. are precision engineered components designed for serious engine builders and performance mechanics tackling high-rev builds, camshaft upgrades, or valve train restoration. These locators sit between the valve spring and the cylinder head, preventing lateral spring movement that can cause premature wear, uneven load distribution, and catastrophic valve train failure at elevated RPM. Whether you're assembling a stock replacement short block or pushing a modified engine toward 8,000+ RPM, locators are non-negotiable hardware for repeatable, safe valve spring seating.

Manufactured from hardened steel, these locators feature a 0.565 inch inner diameter (ID) and 1.300 inch spring outside diameter (OD) compatibility, with a 0.060 inch thickness that ensures proper spring pocket engagement without excessive binding. The 1.290 inch outer diameter provides a stable seating surface that centers the spring coil and maintains consistent preload across the entire valve train assembly. Steel construction resists deformation under sustained spring pressure and elevated under-hood temperatures, critical for turbocharged, supercharged, or naturally aspirated high-output applications where valve spring loads routinely exceed factory specifications.

The 16-pack quantity covers a full set of eight valves (intake and exhaust paired), making installation straightforward for single-cylinder head work or ideal as spares for engine builders maintaining multiple vehicles. These locators are compatible with OEM and aftermarket spring combinations where inner diameter matches 0.565 inches, including applications ranging from classic muscle car rebuilds to modern four-cylinder turbocharged platforms. Proper installation—seating locators flush against the cylinder head spring pocket before spring and retainer assembly—ensures consistent spring rate, eliminates coil bind risk, and extends the service life of both springs and valve seals.