Home 1968 Shelby Cobra GT350, GT500 & GT500KR My 1968 Shelby Cobra GT350 Comp Cam and Valve Train Valve Train to Match the Comp Cam

Valve Train to Match the Comp Cam

Elgin Stamped Steel Roller Tip Rocker Arms RK-889RS

Return to the prior page My GT 350

Return to the prior Comp Cam page

One way to increase power is to increase lift. That’s what makes Elgin roller tipped steel rocker arms so popular. They’re one of the highest lift rockers you can get outside of racing. And, along with the lift, you also get a ball pivot roller tip to prevent valve stem and guide wear.

Roller Tip Rocker Arms RM-1776 Fulcrum RM-1741 Bolts and Washers.

Roller Tip Rocker Arms RM-1776 Fulcrum RM-1741 Bolts and Washers.

The rocker arm ratio is 1.6. If you were to install 1.6-ratio rocker armsthe valve lift would increase to .512 inches (.320 inches x 1.6 = .512 inches). The engine will respond as if a slightly larger lift cam had been installed. In essence, increasing the rocker arm ratio is an easy way to improve the performance of an existing cam.