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Rocker-Arm Package, LS1/LS6 w/LS6 Springs, Keepers

rocker arm package
Fits: 1997 1998 1999 2000 2001 2002
Price: 569.95
SLP is proud to announce the release of the industry's first 1.85:1-ratio rocker arms for GM "Gen III" engines (includes the LS1 and LS6 as well the 4.8-, 5.3-, and 6.0-liter truck engines). Our exclusive design is based on the stock rocker and built by the OEM manufacturer, using the same high-quality materials and processes. The 1.85:1 ratio increases lift by approximately 10% over the stock 1.7:1 unit, yielding gains of up to 18 horsepower!

Designed as a bolt-on replacement, these rockers require no valve-cover or cylinder-head modifications to install. You can even reuse your stock pushrods!

We offer three different kits to fit a variety of applications. For stock camshafts, consult the application chart to find the appropriate kit. (When using an aftermarket cam, please consult your salesman before ordering.)

This kit includes (16) 1.85:1 rocker arms.

SLP 1.85 Rocker Arm Compatibility
with Stock Camshafts


Y-Body (equipped with stock camshaft springs and retainers)
 Year Peak Lift
with 1.85
Stock Springs 2002 LS6 Springs  SLP Springs Ti retainer
1997 0.521 NO OK  Recommended
1998 0.521 NO OK  Recommended
1999 0.521 NO OK  Recommended
2000 0.544 NO OK  Recommended
2001 LS1 0.521 NO OK  Recommended
2002 LS1 0.521 NO OK  Recommended
Z06 2001 LS6 0.569 NO NO  Required
Z06 2002 LS6 0.600 NO NO  Required *
* Susceptible to valve float with over revving


F-Body (equipped with stock camshaft springs and retainers)
 Year Peak Lift
with 1.85
Stock Springs 2002 LS6 Springs  SLP Springs Ti retainer
1998 0.544 NO OK  Recommended
1999 0.544 NO OK  Recommended
2000 0.544 NO OK  Recommended
2001 0.521 NO OK  Recommended
2002 0.521 NO OK  Recommended

TRUCK 4.8L, 5.3L, 6.0L(equipped with stock camshaft springs and retainers)
 Year Peak Lift
with 1.85
Stock Springs 2002 LS6 Springs  SLP Springs Ti retainer
1999-2002 varies NO OK  Recommended
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