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.