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SLP is pleased to introduce our 1.85-ratio rocker arm package for GM "Gen III" engines which includes LS6/LS2, as well as LS2 based 6.0 liter truck engines. Designed as a true bolt-on replacement, these new rockers require NO valve cover or cylinder head modifications (please reference our instructions for proper installation). Our exclusive design is based off of the stock rocker providing an OEM quality steel construction and a roller bearing trunion which results in a 10% increase in valve lift over the stock 1.7 ratio rocker arms and gains of up to 12 horsepower over stock. This package includes 16 rocker arms, springs, titanium retainers, keepers, detailed instructions and all required installation hardware. Best of all, you'll save $25 over the cost of purchasing the parts individually!
This package includes:
- 1.85 Ratio Rocker Arms 16 qty (50185)
- High-Performance Valve Springs 16 qty (53003)
- Titanium Retainers 16 qty (53104)
- Valve Keepers 32 qty (66345)
- New bolts 16 qty
NOTE 1: When using an aftermarket camshaft, please contact SLP for proper compatibility.
SLP ROCKER-ARM COMPATIBILITY CHART (with stock camshafts)
| YEAR |
APPLICATION |
ENGINE |
Are SLP springs & retainers required? |
SLP Suggested Spring P/N use w/1.85 rockers |
Intake Valve Lift with SLP 1.85 rocker |
Exhaust Valve Lift with SLP 1.85 rocker |
| 2005-07 |
C6 Corvette |
LS2 |
Yes |
53003 |
0.600 |
0.596 |
| 2002-04 |
Z06 Corvette |
LS6 |
Yes |
53003 |
0.600 |
0.596 |
| 2001 |
Z06 Corvette |
LS6 |
Yes |
53003 |
0.569 |
0.568 |
| 2001-04 |
Corvette |
LS1 |
No |
N/A |
0.505 |
0.521 |
| 2000 |
Corvette |
LS1 |
Yes |
53002 |
0.544 |
0.544 |
| 1997-99 |
Corvette |
LS1 |
No |
N/A |
0.514 |
0.521 |
|
|
|
|
|
|
|
| 2001-02 |
F-Body |
LS1 |
No |
N/A |
0.505 |
0.521 |
| 1998-00 |
F-Body |
LS1 |
Yes |
53002 |
0.544 |
0.544 |
|
|
|
|
|
|
|
| 2005-06 |
GTO |
LS2 |
Yes |
53003 |
0.600 |
0.596 |
| 2004 |
GTO |
LS1 |
No |
N/A |
0.505 |
0.521 |
|
|
|
|
|
|
|
| 2006 |
CTS V |
LS2 |
Yes |
53003 |
0.600 |
0.596 |
| 2004-05 |
CTS V |
LS6 |
Yes |
53003 |
0.600 |
0.596 |
|
|
|
|
|
|
|
| 2005-06 |
SSR Truck |
LS2 |
Yes |
53003 |
0.566 |
0.564 |
| 2006-07 |
Trailblazer SS |
LS2 |
Yes |
53003 |
0.600 |
0.596 |
| 2001-07 |
CK Truck |
LQ4, LQ9 |
No |
N/A |
0.505 |
0.521 |
| 1999-07 |
CK Truck |
LR4, LM7 |
No |
N/A |
0.497 |
0.507 |
| 1999-00 |
CK Truck |
LQ4 |
No |
N/A |
0.497 |
0.507 |
| 2003-04 |
ST Truck |
LM4 |
No |
N/A |
0.497 |
0.507 |
| 2002-05 |
CK Truck |
L59 |
No |
N/A |
0.497 |
0.507 |
PT# 55186 - SLP Rocker Arm Package w/ Springs, Retainers, and Keepers (1.85 Ratio) - GTO, Corvette, F-body (LS1/LS2) |