Manley 221425-16: NexTek Drag Race Valve Springs 1.640" O.D.
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1.640'' O.D. Double Valve Springs
NexTek Drag Race Valve Springs 1.640'' O.D. 0.860'' I.D. 604 lbs./in. Spring Rate 280 @ 2.100'' Installed 795 @ 1.250'' Open 0.900'' Max Valve Lift 1.150'' Coil Bind Double Spring (No Damper) 16/pkg.
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