Schoenfeld IMCA Modified Headers - 1-3/4" Primary - 3-1/2" Collector - Steel - Black Paint - SB Chevy 13199903 We also have a smaller

We also have a smaller diameter Viton seal available for triple spring applications

a spacer is included to fit BB Chevy

High - Holley and Carter - Race Only

and Muncie transmissions

Engine Swap

Schoenfeld IMCA Modified Headers - 1-3/4" Primary - 3-1/2" Collector - Steel - Black Paint - SB Chevy 13199903 We also have a smallerProduct Description: Headers IMCA Modified 1. 75 in Primary 3. 5 in Collector Steel Black Paint Small Block Chevy Pair 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