Schoenfeld 12" Extension - 3-1/2" Diameter 2010026 Block ports have 3/8"-24 threads

Block ports have 3/8"-24 threads that accept 3/16" inverted flare style fittings

12 Shock Capacity

Clamp-on design is formed of two halves which bolt together around 1" to 1-1/4" round tubing

Centerforce steel flywheels are manufactured from high quality billet steel and match closely to the original equipment flywheel weight

Schoenfeld 12" Extension - 3-1/2" Diameter 2010026 Block ports have 3/8"-24 threadsAll extensions are expanded on one end Started in 1974, Schoenfeld is known for custom fabricated headers for all forms of circle track racing. Schoenfeld Headers is the worlds largest manufacturer of circle track headers, but they specialize in a variety of high quality exhaust parts, including turn downs, extensions, tubing bends and elbows, race mufflers, insert mufflers, mandrel bends, exhaust reducers, header gaskets, and more. Product