Shaft Mounted Roller Rocker Arms For GX390.
Choice of 1.2 / 1.3 Ratio
Super Strong, Economical Alternative To The Aluminum Rollers.
Fits GX340 / 390s & Non-Hemi 13 / 15HP "Clones". Will NOT Fit 240 / 270s.
*May Need To Modify Valve Cover Bolt Boss For Clearance During Assembly.*
