This COMP Cams Valve Spring Kit is designed to maximize the potential of GM L31 Vortec cylinder heads when using a flat tappet camshaft. This kit allows up to .510" 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, FLAT TAPPET |
| Description_EXT |
Complete .510" max lift, drop-in valve spring kit for GM L31 Vortec Cylinder Heads |
| Description_INV |
SPRING KIT, FT, GM L31 VORTEC CYL HEAD |
| Description_FAB |
Drop-in valve spring kit for GM L31 Vortec cylinder heads, No machining required, Includes metal body, Viton valve stem seals, .510" max lift |
| Description_LAB |
SPRING KIT, GM L31 VORTEC CYLINDER HEAD, .510" MAX LIFT, FLAT TAPPET |
| Description_SHO |
SPRING KIT GM L31 FT |
| Description_MKT |
This COMP Cams Valve Spring Kit is designed to maximize the potential of GM L31 Vortec cylinder heads when using a flat tappet camshaft. This kit allows up to .510" 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_SHP |
None |
| Valve Spring Style |
Beehive |
| California Proposition 65 |
WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |
| Machine Work Required |
No |
| Recommended Max Lift (in) |
0.51 |
| Spring Seat OD (in) |
N/A |
| Load at Open Height (lbs) |
304 |
| Inside Diameter of Outer Spring (in) |
.645/.850 |
| Spring Seat Step Diameter (in) |
N/A |
| Quantity |
16 |
| Number of Springs Per Valve |
1 |
| Retainer Material |
Chromoly |
| Spring Rate (lbs/in) |
386 |
| Integrated Spring Seat |
No |
| Valve Stem Seal Material |
Viton |
| Valve Stem Seal Type |
Positive Stop |
| Valve Spring Finish |
Raw |
| Lock Style |
10 Degree |
| Maximum Coil Bind Height (in) |
1.18 |
| Damper Spring Included |
No |
| Inside Diameter of Inner Spring (in) |
N/A |
| Outside Diameter of Outer Spring (in) |
1.087/1.292 |
| Installed Height (in) |
1.75 |
| Valve Stem Diameter (in) |
11/32 |
| Load at Installed Height (lbs) |
111 |
| Open Height (in) |
1.25 |
