T&D Machine Shaft Mount Full Roller Rocker Arm - 1.80 Ratio - SR20 BRODIX Heads - Big Block Chevy Helmet Hook 73 ratioYukon Gear & Axle®

73 ratioYukon Gear & Axle® provides the highest quality aftermarket drivetrain parts in the industry

Perpendicular

The runners are wider at the plenum

MSD is able to produce maximum spark output

T&D Machine Shaft Mount Full Roller Rocker Arm - 1.80 Ratio - SR20 BRODIX Heads - Big Block Chevy Helmet Hook 73 ratioYukon Gear & Axle®Product Description: Rocker Arm Shaft Mount 1. 80 Ratio Full Roller Aluminum Natural SR20 Brodix Heads Big Block Chevy T&D manufactures rocker arm systems for over 400 cylinder heads and its products have established a reputation for the highest levels of quality, performance and long term reliability. The company works closely with leading engine builders to maintain its position at the forefront of technology. Add to this the fact that unlike some