KB forged twin cam pistons enhance Screaming Eagle performance

Publish Date: 
Dec 6, 2013
By Dave Koshollek

CARSON CITY, Nev. - New 103-, 110- and 117-inch forged twin-cam pistons from KB Performance are made from a 4032 alloy, which offers a low expansion rate for tighter piston-to-wall clearances.

Offset wrist pin location reduces piston noise, and coated piston skirts reduce friction and wear. Specific dome shapes fit Harley-Davidson 95cc Screaming Eagle Heads to achieve a true 10:1 compression ratio in each engine displacement, according to Marko Glush of KB Performance Motorcycle Pistons.

Vehicle Fitment: 2007 and later 96-inch and 110-inch based engines; also fits standard Twin Cam 85cc heads to net a 11:1 compression ratio

Target Customer: Riders wanting to upgrade engine performance when using Screaming Eagle MVA heads

KB Motorcycle Pistons is a division of United Engine and Machine which has been making pistons since 1922. The company started in Fresno, Cal., and in 1978 moved to Carson City, Nev.  KB is still operated by the original family and produces only pistons -- for everything from tanks to motorcycles. UEM also offers automotive products, including ICON forged racing pistons, KB performance hypereutectic pistons and the Silvolite stock replacement piston line.

Press image courtesy KB Motorcycle Pistons