Came across this in a magizine. From JIMS,jimsusa.com --
THE JIMS FORCEFLOW
CYLINDER HEAD COOLER
This smooth streamline design will keep your Twin Cam®
running cooler on those hot July summer days in stop and
go traffic. JIMS® R & D department has come up with a serious
way to drop your head temperatures by as much as
100 degrees. Although this mounts in the horn area JIMS®
has designed a horn relocater hidden inside the fan housing.
The fan can be installed to be turned on and off man
ually or it can be regulated by a thermostat controlled
sensor that monitors head temperature and activates the
fan when engine temperature rises. This kit is highly recommended
for performance motors to help extend engine
life. Complete kit includes high powered fan, housing,
horn, hardware and all wiring, along with detailed instructions.
Use on 99-Present Twin Cam Touring Models
& other models with some fabrication.
(Kit installs from horn location and is supported by center case bolt location.)
No. 5400 - Polished Cylinder Head Fan kit.
No. 5401 - Black Cylinder Head Fan kit.
No. 5402 - Silver Cylinder Head Fan kit
kanetruck