COMP Cams Magnum Chromoly Roller Tip Rocker Arm - 3/8 in Stud Mount - 1.60 Ratio - Small Block Ford (Set of 16) 121028 5 in OD Inlet

5 in OD Inlet

or just improve the overall driveability of your truck then the Evolution is the option

Ford Inline-6 1984

FLO-FAST is the simplest

2-1/2 in Primary Tubes

COMP Cams Magnum Chromoly Roller Tip Rocker Arm - 3/8 in Stud Mount - 1.60 Ratio - Small Block Ford (Set of 16) 121028 5 in OD InletPerfect for street performance, our 8620 chromemoly steel Magnum roller tip rockers can handle up to 350 lbs of pressure. These 1431 rail type rockers feature a 1. 6 ratio for 3 8" stud '68 '89 Ford 289 351 Windsor. COMP Cams Magnum Roller Rocker Arms, 1. 6 ratio, 3 8" Stud Diameter for Small Block Ford (Rail Type) Product Description: Rocker Arm Magnum 3 8 in Stud Mount 1. 60 Ratio Roller Tip Chromoly Small Block Ford Set of 16 For 30 years, the COMP