Engine Kits

Valve Spring -GM LS1 Kit Valve Spring -GM LS1 Kit
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Valve Spring -GM LS1 Kit Valve Spring -GM LS1 Kit



Part #: 26921-KIT
List Price: $1,275.98
Our Price: $637.99
You Save: $637.99



LS1 Dual valve spring kit for all 1997 to 2004 LS1 engines. The spring is designed to handle up to .650” lift in the most extreme performance applications. Kit includes 16 dual springs, 16 valve seals, 16 titanium retainers, and 16 spring seats. No machining required.

O.D.:

1.300

I.D.:

0.655

Seat Load:

135 @ 1.770

Open Load:

400 @ 1.220

Coil Bind:

1.040

Rate (lbs./in.):

408

Titanium Retainer:

754

Steel Retainer:

N/A

Cup/Seat:

4695

Shims:

4753

Brand COMP Cams
Coated No
Damper Spring Included No
Inside Diameter of Inner Spring (in) 0.655 in.
Inside Diameter of Outer Spring (in) 0.870 in.
Locks Included No
Number of Springs Per Valve Dual
Outside Diameter of Outer Spring (in) 1.300 in.
Part Type Valve Spring and Retainer Kits
Product Line COMP Cams High Performance Valve Spring Kits
Quantity Sold as a kit.
Retainer Material Titanium
Retainers Included Yes
Spring Rate (lbs/in) 408 lbs./in.
Valve Spring Style Standard