Harley Busts Out the Big Guns
HARLEY BUSTS OUT THE BIG GUNS
FOR EVERY BIG-INCH RevTech or S&S Harley-clone engine sold, you might imagine another high-performance custom about to be built. But Harley-Davidson's Parts & Accessories Division pictures something else: money it's not making.
To keep its customers in the fold, not to mention keep up with the current cruiser displacement wars brought about by 2000cc-plus Kawasakis and Triumphs (see page 32), The Motor Company recently introduced two important bits of hot-rod accessory kit: a 125-horse-power, 120-cubic-inch (1967cc) Twin Cam engine that will drop into any Twin Cam chassis that uses rubber-mounts, and a new Screamin’
Eagle six-speed overdrive gearbox usable in just about every post-1991 Harley.
Harley turned to the wellknown hot-rod house, JIMS, of Camarillo, California, for the new engine. Like the Screamin’ Eagle crank JIMS previously provided for H-D, the new engine will be available only through Harley dealers. But this time it carries a “JIMS” name instead of “Screamin’ Eagle,’’-not too surprising considering how different the new engine is from a stocker.
The foundations of the JIMS Twin Cam Race Kit are new thick-wall cases, built to support big horsepower. The bottom-end comes assembled, fitted with a 4.5-inch stroker crank. JIMS 4.125inchbore
cylinders (with new wider stud pattern) come with matching pistons and heads using 2.08-inch intake valves developed in conjunction with Harley. A Screamin’ Eagle Pro Super Bore 51mm carburetor and matching intake manifold are ready to bolt on.
Claimed horsepower is 125bhp at 6200 rpm (high revs considering the long stroke), and 121 foot-pounds of torque at 3750 rpm. While the engine is being sold for “racing use only,” its 10.0:1 compression ratio permits operation with 91 -octane pump gasoline-a strange choice for an engine aimed for use at the dragstrip (wink-wink!).
Couple this $8000 “accessory” with the new Screamin’ Eagle Six six-speed ($2700 complete, or $2000 for gearset only) and for just a little more than $10,000 you too can have a FLH that motors away from Gold Wings-though the additional 11 percent in theoretical top speed provided by the six-cogger’s .89 overdrive might just be a little over the top on an Electra ide.
Steve Anderson
