T124 Challenge Engine

S&S® 124 Challenge engines are designed specifically to compete in the 124 Challenge class of the AHDRA. They are available in unassembled form and with natural finish only, since it is assumed that aesthetic and performance modifications will be performed to prepare them for the track. They are intended for the racer who wants to take full advantage of all the modifications allowed under the 124 Challenge class rules. This engine comes with S&S Big Fin SA-B2 Special Application cylinder heads and notched, pork chopped flywheels, which are considerably lighter for faster acceleration. Engines do not include a fuel delivery system, Super D carb kit or VFI must be ordered separately.

Fits 1999-2006 Harley-Davidson® big twin chassis.