Proflow Pro Rockers LS3, LSX, Adjustable Shaft Design

Chevrolet LS3 Pro-Shaft Rocker Arm Kit. Fully adjustable shaft system for LS engines. Adjustable width for various head valve spacing (OE and aftermarket). Maximize valvetrain stability with this bolt-on solution! Ties intake and exhaust rocker arms for each cylinder together. Rockers are made from special heat treated cast 8620 steel with a hardness layer of 56-60. Fully serviceable flanged bushings. Set of 16.

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