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SLP Rocker-Arm Package, LS1 4.8 5.3 6.0 with SLP Springs, Titanium Retainers, Keepers (1.85 ratio)
SLP-51185
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LS1 4.8 5.3 6.0 with SLP Springs, Titanium Retainers, Keepers (1.85 ratio) SLP Rocker-Arm Package
Manufacturer: SLP Performance
Status: Ships in 1-6 Days
Model Detail: LS1 4.8 5.3 6.0
Application: LS1 4.8 5.3 6.0

Rocker-Arm Package, LS1 4.8 5.3 6.0 with SLP Springs, Titanium Retainers, Keepers (1.85 ratio)
SLP is pleased to introduce our 1.85-ratio rocker arm package for GM Gen III engines which includes LS1, as well as 4.8, 5.3 and 6.0* (LQ4 or LQ9) 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 (53002)
  • Titanium Retainers 16 qty (53103)
  • Valve Keepers 32 qty (66345)
  • New bolts 16 qty
NOTE 1: When using an aftermarket camshaft, please contact BPAP for proper compatibility.

NOTE 2: 4.8, 5.3 and 6.0* liter C/K truck engines do not require SLP springs, retainers and keepers reference part # 50185 rockers only when purchasing.

NOTE 3: SSR and Trailblazer SS LS2 engines require SLP part # 53003 springs, part # 53104 retainers and part # 66345 keepers. Part # 51186 rocker arm package is the proper rocker arm package when purchasing and installing in those vehicle applications.

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
2005-2007 C6 Corvette LS2 Yes 53003 0.600 0.596
2002-2004 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




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