COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Small Block Chevy / GM V6 CALCSC6125DS2A2AX 6 x 7 x 13

6 x 7 x 13 in Legs

Trick Spindle Nut Kit made from lightweight aluminum is adjustable with a positive locking nut

5/8 in Tube

1976-1977 Pontiac Sunbird

Stacked Plate design units may be used as engine or transmission oil coolers

COMP Cams Ultra Pro Magnum XD Chromoly Roller Rocker Arm - 7/16 in Stud Mount - 1.60 Ratio - Small Block Chevy / GM V6 CALCSC6125DS2A2AX 6 x 7 x 13The next design evolution of the Hi Tech Stainless Steel Roller Rocker Arms are built to outlast and outperform in accuracy and strength. The Ultra Pro Magnum XD Rocker Arms are engineered from durable 8650 steel and include a machined billet pushrod seat insert for a wide range of super accurate ratios. A unique and wide ratio range to fit almost any popular application. These XD rockers are fully rebuildable and boast precision sorted needle