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 Racing / Track Updates

C6 Corvette Rocker Arm Package 2008-2013, 1.85 Ratio by SLP

C6 Corvette Rocker Arm Package 2008-2011, 1.85 Rat
​C6 Corvette Rocker Arm Package 2008-2013, 1.85 Ratio by SLP ications.

Their exclusive 1.85 ratio design is based off the stock rocker arm design providing OEM-quality aluminum 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 HP and 10 Ft-Lbs over stock.

  • Made from USA 2024 Aluminum Aircraft Extrusion
  • Bearings are Torrington Full Compliment Needle Rollers
  • Includes new Rocker Arm Bolts
  • Includes new Pedestals
  • No Modification to Valve Covers Needed
  • All Instructions are included to complete the installation.

SLP Rocker Arm Compatibility Chart (with stock camshafts)
YearEngineAre Valve Springs RequiredSLP Suggested Spring P/NIntake Valve Lift with SLP 1.85 RockersExhaust Valve Lift with SLP 1.85 Rocker
2008-11LS3Yes6434530.6000.568

 

​
Part Year Description Price Availability  
2008-2013 Corvette Rocker Arm Package, LS3, 1.85 Ratio by SLP
648-1372008-13Rocker Arms, 1.85 Ratio
Tech Instructions
$649.99Direct Ship
2008-2013 Corvette Corvette Valve Springs by SLP
643-4531997-13Corvette Performance Valve Spring Set, LS1, LS6, LS2, & LS3 16 pieces by SLP$249.99Direct Ship
8642
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C6 Corvette Air Intake 2005-2013 SLP Blackwing LS2, LS3 & LS7
  Your #1 Supplier of Corvette Parts and Accessories

If you are looking for Corvette parts, you have come to the right place. Mid America Motorworks has all the essential Corvette parts whether you are doing a Corvette restoration, modification or resto-mod. From Corvette wheels and Corvette exhausts to floor mats, car covers and many other Corvette accessories. You can count on Mid America to have the right Corvette parts in stock and ready to ship.

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