4340 Chromoly Steel Rocker Arms

PRW is quickly establishing a loyal following among engine builders and performance enthusiasts with their high-quality, value-priced rocker arms.

PRW Sportsman series steel roller-tip rocker arms are the ideal choice for a large cross-section of engines, whether it is a mild street rebuild or a circle-track, drag race or off-road application.

The PRW 4340 chromoly steel rocker bodies feature a longer pivot slot for higher lift camshafts and are much stronger than die cast aluminum or stamped steel, so rocker arm flex is negligible.  The roller tip minimizes scrubbing, which is the result of the valve stem pushing hard against the valve guide.  This reduces friction and can free up an additional 15 to 30 horsepower over stock rockers.  PRW’s high quality RockerLoc adjusting nuts are included.  Applications include SB and BB Chev, SB Ford, Oldsmobile, AMC and Pontiac, and are offered in a variety of stud sizes and ratios.

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