Arlen Ness radius Smooth Rocker Boxes

Arlen Ness radius Smooth Rocker Boxes

Curvaceous "Radius" or cutting edge "Rad II" styles.

Carved and chromed from 6061-T6 billet aluminum.

Valve covers include rocker arm supports and all necessary hardware.

Twin Cam models also fit all S & S 124", 117",111" 4-1/8" bore engines.

Evolution models fit all 1984-1999 Big Twins as well as all 4" bore and smaller S & S Evolution style engines.

All rocker boxes have clearance to accept S & S compression releases.

Viton O-rings used for superior sealing.

Sold in pairs.