QualFast .490" 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.

Use with 55-6105 Retainers (sold separately)

See listings below for specifications.

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Order No. Description Price Quantity
52-10008 Max Lift: 0.490" | OD: 1.240" | ID: 0.876" | Closed Load: 80 @ 1.700" | Open Load: 200 @ 1.250" | Spring Type: Single with Damper | Coil Bind : 1.150" $2.56
52-43270 Max Lift: 0.490" | OD: 1.215" | ID: 0.861" | Closed Load: 120 @ 1.700" | Open Load: 265 @ 1.200" | Spring Type: Single with Damper | Coil Bind : 1.150" | Note: GM L6, V6 $3.85
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