COMP Cams Valve Locks 3/8in 2 Groove

Marsoni

M251S

$36.99

Get it in 3 business days with 1 day shipping. Friday, May 29

COMP Cams Valve Locks 3/8in 2 Groovelock angle and 3 8" valve stem size are a perfect replacement lock for stock engine rebuilds. They are recommended only for street Applications with lighter valve spring loads. It is critically important to make sure valve locks match the valve size. There should always be a small gap between the two halves of the lock when they are properly positioned on the valve stem. If the two halves fit together without a gap, they are too large. If the locks

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Reviewed in the United States on February 15, 2026