This COMP Cams Valve Spring Kit is designed to maximize the potential of GM L31 Vortec cylinder heads when using a hydraulic roller camshaft. This kit allows up to .540" lift and provides spring rates that can handle significantly more aggressive lobe profiles. This kit has been developed to make your valve train upgrade as easy as possible by combining quality components in a package that does not require any machining! These components will drop right onto stock GM L31 Vortec cylinder heads.
Specifications:
Description_ASM |
GM Vortec L31 Cylinder Heads |
Description_DEF |
Engine Valve Spring Kit |
Description_DES |
SPRING KIT, GM L31 VORTEC CYLINDER HEAD, .510" MAX LIFT, HYD ROLLER |
Description_INV |
SPRING KIT, HR, GM L31 VORTEC CYL HEAD |
Description_MKT |
This COMP Cams Valve Spring Kit is designed to maximize the potential of GM L31 Vortec cylinder heads when using a hydraulic roller camshaft. This kit allows up to .540" lift and provides spring rates that can handle significantly more aggressive lobe profiles. This kit has been developed to make your valve train upgrade as easy as possible by combining quality components in a package that does not require any machining! These components will drop right onto stock GM L31 Vortec cylinder heads. |
Description_EXT |
Complete .540" max lift, drop-in valve spring kit for GM L31 Vortec Cylinder Heads |
Description_LAB |
SPRING KIT, GM L31 VORTEC CYLINDER HEAD, .540" MAX LIFT, HYD ROLLER |
Description_FAB |
Drop-in valve spring kit for GM L31 Vortec cylinder heads, No machining required, Includes metal body, Viton valve stem seals, .540" max lift |
Description_SHP |
None |
Description_SHO |
L31 HR SP KT |
Quantity |
16 |
Inside Diameter of Inner Spring (in) |
N/A |
Maximum Coil Bind Height (in) |
1.1 |
Retainer Material |
Chromoly |
Load at Open Height (lbs) |
363 |
Spring Seat Step Diameter (in) |
N/A |
Number of Springs Per Valve |
1 |
Inside Diameter of Outer Spring (in) |
.650/.875 |
Open Height (in) |
1.16 |
Valve Stem Seal Material |
Viton |
Integrated Spring Seat |
No |
Spring Seat OD (in) |
N/A |
Valve Stem Seal Type |
Positive Stop |
Load at Installed Height (lbs) |
162 |
Damper Spring Included |
No |
Recommended Max Lift (in) |
0.54 |
Installed Height (in) |
1.7 |
Outside Diameter of Outer Spring (in) |
1.066/1.300 |
Valve Spring Style |
Beehive |
Lock Style |
7 Degree |
Valve Stem Diameter (in) |
11/32 |
Spring Rate (lbs/in) |
372 |
Machine Work Required |
No |
Valve Spring Finish |
Raw |
California Proposition 65 |
WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |