Join Date: Sep 2011
Location: Southern Maryland
Well, boys and girls, the difference is right there in front of us. Victory owners can make 130+ HP with the STOCK HEADS and STOCK THROTTLE BODIES. The HD is lucky to make 1 HP/CI with aftermarket heads and big ol' 58mm throttle bodies.
In all seriousness, if you want to make power with a Harley, the best way is to sell the HD engine on ebay and buy a real engine from S&S, R&R, G2, or have a 120R prepped and beefed up by a competent builder. It will be cheaper in the long run and more reliable to replace the engine than to try converting a stock Twin Cam into something that makes strong power reliably.
If the 'stage 4' HD engine has a stock bottom end/crank, I'll bet dollars to donuts it won't live long if he flogs it. The OEM pressed crank ain't much. The best money spent on one of those is weld/plug/true/Timken bearing treatment on the bottom end. You didn't build your house on a foundation of Dixie cups, did you?
2006 Victory Kingpin
Lloydz 116" Stroker/Big Bore, .495 Cams, Torque Tubes Airbox,
RPW Thor Pipe, Lloydz ECU Flash, PC-III, PTS (-2), Rivera
Primo Clutch Spring, 31 Tooth Pulley w/Buell Belt.