T&D Machine F710 Series Shaft Mount Roller Rocker Arm - 1.8 Ratio - GM LS-Series RG20002M All rod journals have lightening

All rod journals have lightening holes

2100 CFM on high speed / 1500 CFM on low speed

sandwich adapter

The housing diameter is only 2-5/8" and the splines are

If using a non-LSx main harness

T&D Machine F710 Series Shaft Mount Roller Rocker Arm - 1.8 Ratio - GM LS-Series RG20002M All rod journals have lighteningProduct Description: Rocker Arm F710 Series Shaft Mount 1. 8 Ratio Full Roller Aluminum Natural GM LS Series 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 competitors