Schoenfeld IMCA-UMP Stock Car Headers - 1-3/4 to 1-7/8" Primary - 3-1/2" Collector - Steel - Black Paint - SB Chevy 23003W DOHC Opel / Vauxhall

DOHC Opel / Vauxhall

Roll Control

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

This adapter is included with each MSD Tach Drive Distributor

77-85 Impala

Schoenfeld IMCA-UMP Stock Car Headers - 1-3/4 to 1-7/8" Primary - 3-1/2" Collector - Steel - Black Paint - SB Chevy 23003W DOHC Opel / VauxhallProduct 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,