I think that the MoCo has a product in their line of cleaning/detailing supplies that is similar to Pig Spit, can't remember the name, but essentially the same stuff for blacked out engines. Pig Spit is all I've ever used on Ole Granny's motor..
..works great! spyder
Used that on my Fatboy to brighten the black engine up... here it is...
Harley-Davidson® Engine BrightenerMake your engine look new again. H-D® Engine Brightener refreshes and rejuvenates tired wrinkle black finishes on engine cases, cylinder fins, covers, or anywhere else the color has faded or lost its luster. This finish restorer cleans deep into the wrinkle black surface, and "moisturizes" the finish to return the original satin sheen. Just spray it on, let it soak in, and wipe away for a fresh look.
93600002
IN-STORE PURCHASE ONLY Contact dealer for pricing and availability.
12-oz. Bottle
Universal.
MSRP US $14.95

Ride Safe,
Fired00d
