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Black oxide for corrosion resistance
7-degree valve stem lock taper
For 5/16", 11/32" and 3/8" valve stem diameters
Dual or triple spring with outside diameter 1.430" to 1.500"
Height comparison is +0.045
The Crane Rugged Steel Valve Spring Retainers are made from high quality bar stock steel. They are heat-treated for maximum strength and durability, and black oxide coated for corrosion resistance. They feature a 7-degree taper, and they are compatible with either stamped valve stem locks or machined steel valve stem locks.