Chevrolet LS / .660” Valve Spring Kit by Manley Performance

Manley NexTek valve spring and retainer kits are designed and manufactured for optimum consistency, run after run, lap after lap. They are manufactured from super clean high-tensile chrome silicon steel that has been shot peened to MIL specs for maximum fatigue life. Proven to have less load loss than many other springs, they exhibit superior fatigue life and enhance valvetrain stability--everything that counts in winning races!

Features

• Valve Spring Style: Standard
• Number of Springs Per Valve: Dual
• Maximum Valve Lift (in.): 0.660 in.
• Retainers Included: Yes
• Retainer Material: Steel
• Outside Diameter of Outer Spring (in.): 1.295 in.
• Coil Bind Height (in.): 1.100 in.
• Damper Spring Included: No
• Spring Rate (lbs/in.): 379 lbs./in.
• Inside Diameter of Outer Spring (in.): 0.949 in.
• Inside Diameter of Inner Spring (in.): 0.676 in.
• Locks Included: Yes
• Lock Material: Steel
• Lock Groove Quantity: 2-groove
• Lock Style: 7 degree
• Valve Stem Seals Included: Yes
• Valve Springs Coated: No
• Valve Stem Diameter (mm): 8.00mm

Benefits

• Large savings over purchasing items separately

Please Note: The image provided is generic and may not be an accurate representation of the product you will receive

Applications

• 1987-1990 Chevrolet Camaro Iroc-Z
• 1991-1992,1998-2002 Chevrolet Camaro Z28
• 1988 Chevrolet Corvette 35th Anniversary Edition
• 1985-1992,1997-2004 Chevrolet Corvette Base
• 1986 Chevrolet Corvette Indianapolis 500 Pace Car
• 1990-1992 Chevrolet Corvette ZR-1
• 1987-1988 Pontiac Firebird Base
• 1989-1992,1998-2002 Pontiac Firebird Formula
• 1987-1992 Pontiac Firebird Trans Am
• 1989-1992 Pontiac Firebird Trans Am GTA
• 2004 Pontiac GTO Base

What's In The Box?

• 16 - Valve Springs
• 16 - Retainers
• 16 - Spring Locators
• 16 - Valve Locks
• 16 - Valve Stem Seals

Warranty

• Manley products, due to their intended use, are sold without warranty.