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97-2013 Corvette, 10-15 Camaro & Others, Spring, Retainer, Seat, Seals and Lock Kit for .660" Max Lift GM LS, Part 144317-1
Offering an easy solution for matching springs to your camshaft, this kit for '97+ GM LS engines includes our 144838-16 springs, 144944-16 retainers, 144460-16 seats, 99818-16 seals and 99108-1 locks. Handles .660" valve lift.
Valve Spring Kit, Dual Springs, Steel Retainers, Locks, Kit
Number of Springs Per Valve: Dual
Valve Spring Style: Standard
Valve Stem Diameter (in): 0.314 in.
Valve Stem Diameter (mm): 7.97mm
Retainers Included: Yes
Retainer Material: Steel
Locks Included: Yes
Lock Style: 7 degree
Lock Groove Quantity: 1-groove beadlock-style
Lock Material: Steel
Outside Diameter of Outer Spring (in): 1.297 in.
Coil Bind Height (in): 1.060 in.
Damper Spring Included: No
Spring Rate (lbs/in): 408 lbs./in.
Inside Diameter of Outer Spring (in): 0.917 in.
Inside Diameter of Inner Spring (in): 0.667 in.
Valve Springs Coated: No
Valve Stem Seals Included: Yes
Valve Guide Diameter (in): 0.500 in.
Quantity: Sold as a kit.
Notes: Fits 8mm valve stems. For use with LS hydraulic roller camshafts.
Ideal for modern and classic muscle, cruisers, street rods and street/strip applications
Grinds that fit a variety of applications: daily drivers to hot street/strip cars.
Ideal for street rods, muscle cars and some street/strip applications, the PowerMax series offers a substantial increase in performance. With a modern lobe profile and a focus on providing more area under the curve, the PowerMax line gives classic and modern cars a sizable power increase without sacrificing durability.
Designed for all-out power.
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