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PAC Racing - PAC-1238X - 1.274 Dual Valve Spring GM LS (1)

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Product description

Valve Spring - RPM Series - Dual Spring - 600 lb/in Spring Rate - 0.985 in Coil Bind - 1.274 in OD - GM LS-Series - Each

Additional information
Outer Diameter: 1.274 in
Inner Diameter (Outer): 0.900 in
Inner Diameter (Inner): 0.630 in
Installed Height (Valve Closed): 1.800 in
Seat Pressure @ 1.800 in: 250 lbs
Open Pressure @ 1.050 in: 700 lbs
Spring Rate: 600 lb/in
Max Valve Lift: 0.750 in
Coil Bind Height: 0.985 in

Recommended components:
Retainers (PAC 400 Series): R432
Retainers (PAC 500 Series): R532
Retainers (PAC 600 Series): R632
Spring Seats: S128, S138

Application notes:
LS spring for drag racing and street/strip use. Very high rate and high frequency spring.

racingsprings.com

Vendor Part Number: PAC-1238X

Pac Racing Catalog -24
Pac Racing Catalog -15

Always verify specifications with the manufacturer and engine builder before final assembly.

The approximate size of the packed product or the sales package is 97 x 53 x 169 mm.