Manley Polished NexTek H.P. Double Valve Spring Kit [GM Gen V LT4]
660-2636LT4KS
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Items You Need
GM Gen V LT4
Valve Spring Specs: p/n 660-221436-16
- Type of Spring: Polished Double Coil without Damper
- Installed Height and Pressure: 1.800 in. @ 155 lbs.-in.
- Open Height and Pressure: 1.110 in. @ 405 lbs.-in.
- Spring Rate: 379 lbs.-in.
- O.D.: 1.295 in.
- I.D.: 0.676 in.
- Coil Bind height: 1.100 in.
- Weight: 93 grams
- Damper Included: No
Valve Lock Specs: p/n 660-13098-16
- Material: Machined Steel
- Lock Angle: 7 Degree
- Valve Stem Diameter: 8 mm (.3135 in.)
- Installed Height: Standard
- Valve Stem Groove Type: Single Radius Chevy LS
- Weight: 2.6 grams
Valve Stem Seal Specs: p/n 660-24042-16
- Material: Viton
- Valve Stem Diameter: 5/16 in. / 8 mm
- Guide O.D.: 0.500 in.
- Installed Seal O.D.: 0.608 in.
CNC Machined I.D. Spring Locators p/n 42162-8 (Intake), 42165-8 (Exhaust)
7 Degree Titanium Retainer p/n 23602-16 (Intake), 23623-8 (Exhaust)
Specifications:
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.