T&D Machine Shaft Mount Full Roller Rocker Arm - 1.60 Ratio - AFR 227 / 235 - Small Block Chevy 2301-160/160 Suspension Cleaner 500 Harmonic Damper - SFI

500 Harmonic Damper - SFI 918038

Outer mounting bolt holes are 2-1/2" CTC

1972-1975 Ford F-100

Some sanctioning bodies such as Ultra4 and Lucas require spotters to have two radios

T&D Machine Shaft Mount Full Roller Rocker Arm - 1.60 Ratio - AFR 227 / 235 - Small Block Chevy 2301-160/160 Suspension Cleaner 500 Harmonic Damper - SFIProduct Description: Rocker Arm Shaft Mount 1. 60 Ratio Full Roller Aluminum Natural AFR 227 235 Small 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