Schoenfeld IMCA-UMP Stock Car Headers - 1-3/4 to 1-7/8" Primary - 3-1/2" Collector - Steel - Black Paint - SB Chevy 23003W Chevrolet version is supplied with

Chevrolet version is supplied with a equivalent Melonized distributor gear and adjustable slip collar for blocks with a non-standard deck height

Versatile and feature packed — the RRP5100 is ultimate race intercom

77-85 Impala

1978-87 A/G-Body and more

Fits 1965-91 GM TH400

Schoenfeld IMCA-UMP Stock Car Headers - 1-3/4 to 1-7/8" Primary - 3-1/2" Collector - Steel - Black Paint - SB Chevy 23003W Chevrolet version is supplied withProduct Description: Headers IMCA UMP Stock Car 1. 75 to 1. 875 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,