QualFast .500" Max. Lift High Performance Springs

QualCast

QualFast High Performance Springs are manufactured by the industry-leading high performance valve spring factory using the latest materials and manufacturing processes. All QualFast springs are wound using super-clean chrome silicon or new Alpha 1 or 3 alloy wires. Engineered for high performance to give optimum lift and prevent valve float.

See listings below for specifications.

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Order No. Description Price Quantity
52-08470 Max Lift: 0.500" | OD: 1.437" | ID: 1.080" | Closed Load: 105 @ 1.750" | Open Load: 210 @ 1.250" | Spring Type: Single with Damper | Coil Bind : 1.100" | Use Retainer: 53-6302 $3.95
52-10010 Max Lift: 0.500" | OD: 1.260" | ID: 0.876" | Closed Load: 120 @ 1.700" | Open Load: 300 @ 1.200" | Spring Type: Single with Damper | Coil Bind : 1.160" | Use Retainers: 55-6100 or 55-8100 $3.20
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