48-2P Mikuni 48mm Kit for Harley Davidson large capacity engines (Chrome & Polished Carburetor, Jets & Rubber Mounting Flange with slotted mounting holes to suit manifolds with 70 thru 77mm stud centre spacings)
Recommended for engines 115CUI and larger or if your heads have been flowed to require a 270CFM flow rate. There is little to be gained from installing the HSR48 on an engine with stock cylinder heads or one that is going to be fitted with an exhaust system more suited to looking good than passing gas. The number of bolt-on performance options becomes very narrow when one attempts to get their engine over and well past the 100 Horsepower mark. We advise that you carefully consider the suitability of other performance components when you consider installing the HSR48.
Our HSR48 is slightly larger than either the HSR42 or the HSR45. It is taller and the spigot (engine side) is larger in diameter. This may result, with some installations, in interference problems with chassis parts. While Mikuni does have a manifold assembly that fits the “48” to a stock Evo or Twin Cam motor, we do not make special manifolds for engines with non-standard cylinder head spacing or larger diameter intake ports.