Harland Sharp AMC V8 7/16" 290-401 Stud Mount Roller Rocker Arms, 1.7 Ratio, Aluminum

Harland Sharp AMC V8 7/16" 290-401 Stud Mount Roller Rocker Arms, 1.7 Ratio, Aluminum Notes: Pre 1974 heads must install a straight 7/16 or 3/8 rocker stud in place of the factory bottleneck style, 1974 to 1991 must machine head for guide plates and drill & tap for 7/16 or 3/8 rocker studs
Specs:
Rocker Arm Mounting Style: Stud
Self-Aligning: No
Rocker Arm Ratio: 1.7
Stud Size: 7/16 in.
Rocker Arm Style: Full roller
Shims Included: No
Rocker Arm Material: Aluminum
Rocker Arm Body Style: Standard
Rocker Arm Fasteners Included: Yes
Rocker Arm Nut Style: Polylock
Rocker Arm Finish: Orange anodized
Quantity: Set of 16.
Note: Cylinder head modification may be required for installation. Fits:
1966 to 1991 290-401 AMC V8