Introducing the Smith Roland rocker boxes for HD Shovelhead motors.

These 6-part modular-designed boxes are CNC-machined from solid 6061 billet aluminum and feature better gasket surface coverage, improved top-end oiling, and a separate bolt pattern for lid and box-to-head torquing. 

These can be anodized, cerakoted, polished, or tumbled, and include all mounting hardware, o-rings, 2 sets of lid gaskets and custom rocker shafts.

NOTE: these are specifically designed to work with roller rocker arms, and additionally do not work with stock rocker shafts. You will need to choose the option below to remove the rocker shafts if you would rather make your own rocker shafts.

These will ship within 4 weeks from the date of purchase and include instructions for mounting and service. 

If you've ever tried to decipher an old, barely legible Harley blueprint you know what a pain that can be. Here is a digitally re-drawn solution to that problem that not only gets you easy to read dimensions but looks just as good in the living room as it does in the shop. Printed at 36x48" on heavy-weight vinyl with brass grommets at the top for hanging and a loop to weight it at the bottom (we recommend a 3/8" steel rod at 48" long). 

This all new edition simplifies everything from previous versions. We've reduced the clutter of showing tolerances spelled out and opted to show the median range with a +/- indication next to it and the tolerance at the bottom of the poster. Additionally all arrows, lines and typography have been cleaned up to be even more legible from previous versions. 

Edition of 20 for Fall 2022 - please allow two weeks for shipping