T&D Machine Sport Comp Shaft Mounted Rocker Arm Kit - SB Chevy - 1.60/1.50 Ratio 121000 Air springs fully adjustable from

Air springs fully adjustable from 5-100 PSI

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and 1X straight

1000-11000 RPM

GM F-Body 1967-74

T&D Machine Sport Comp Shaft Mounted Rocker Arm Kit - SB Chevy - 1.60/1.50 Ratio 121000 Air springs fully adjustable fromHigh Quality, affordable Rocker Sets for the budget conscious racer. T&D Machine Products offers a shaft rocker system that incorporates many design features of their premium product at a price comparable with stud mount rockers that requires guide plates, girdle and hardware that go with them. Sets of 16 include all installation hardware. T&D manufactures rocker arm systems for over 400 cylinder heads and its products have established a reputation