COMP Cams Rocker Arm GM LS3 1.8 3/8 Ultra - 1676-1

Ultra Pro Magnum 1.8 Ratio Rocker Arm for GM LS3 w/ 3/8" Stud

This Ultra Pro Magnum rocker is made of black oxide coated 8650 chromemoly steel that can withstand up to 850 lbs of spring pressure. Featuring a 1.8 ratio, this rocker fits LS3 with a 3/8" diameter stud.

<ul><li>For LS3/L99/L76 - Rectangle Port Head LS Applications</li><li>Single Stud Mount Rocker - Includes Poly Lock - Requires <a title="Hi-Tech™ Race Rocker Studs - GM Gen III/IV LS Engines" href="https://www.raptorracing.ca/catalogsearch/result/?q=4554-16&Category_Code=">3/8" Studs </a>& <a title="Guide Plates - GM LS Flat - 5/16" Pushrod Diameter" href="https://www.raptorracing.ca/catalogsearch/result/?q=4854-8&Category_Code=">Guide Plates</a></li><li>1.8:1 Ratio</li></ul> New LS-Specific Ultra Pro Magnum™ Rocker Arms From COMP Cams Increase Ratio And Stiffness Over Stock Rockers, While Also Increasing Lift without The Need To Swap Cams. As LS engines continue to grow in popularity, COMP Cams has expanded its line of Rocker arms to build components specific to LS Applications.

The Ultra Pro Magnum Roller Rocker Arms not only live up to the lofty standards of the original Pro Magnum Rockers, but they also take stud mount rocker performance, stability and value to a whole new level. The modern arched, web-like design delivers increased strength and rigidity while still reducing the moment of inertia and optimizing the dynamic balance.