Mid-USA

V-Factor Rocker Arms and Covers

V-Factor rocker arm cover assemblies are a two-piece design, CNC machined from die cast aluminum for high strength and lower cost.
Developed to provide a high tech look while reducing the high cost of a similar product machined from billet aluminum, they can be used on all years and models of the Evolution engine regardless of whether the engine vents through the crankcase or the cylinder heads. 

Chrome plated rocker cover set for all Evo models

The one way breather valve has been upgraded from the OE umbrella type to a much more efficient flapper type and is also located higher in the cover. Installation of covers on OE height and most comparably sized engines can be performed without removing the engine from the frame. 
Sold as an assembly for front and rear heads they have a six bolt top cover design "for an improved sealing quality," and one piece rocker arm supports for easy installation. Extended height vent towers help eliminate the oil mist carry over problem normally associated with the head type venting system; larger than OE vent valves are incorporated into the rocker cover seal. Silicon beaded lower gaskets and all necessary mounting hardware are included. They are available in chrome or polished for Evo Big Twins '84-'99 and '86 and later Sportsters.

Rocker arm covers for Panhead

Rocker arm covers for Shovelhead (all years)

Also seen here are stamped steel V-Factor covers for '48-'65 Panheads (a choice of screw kits, reinforcement kit and felt pad sound deadener are also available) and CNC machined replacement OE style rocker arm covers for all Shovelhead years.- Spacers included to adapt for '80 and later style heads.
These V-Factor complete rocker arm assemblies for Panheads include upper brass block, lower cast iron block, and matching rocker arm for rear exhaust/front intake and front exhaust/rear intake. They fit Panheads from '48-'65 to replace OE parts.

V-Factor OE replacement rear exhaust/front intake and front exhaust/rear intake rocker arm assemblies for Panheads from '48-'65 include brass block, lower cast iron block, and matching rocker arm for rear exhaust/front intake and front exhaust/rear intake.

OE replacement V-Factor rocker arms are also available for Shovelheads, Evo engines (including XL) and Twin Cams - they come with pre-installed bushings, sized and ready to run.

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