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

This adapter is included with each MSD Tach Drive Distributor

1978-87 A/G-Body and more

DOHC Opel / Vauxhall

Fits 1965-91 GM TH400

The COMP crankshaft socket for Chevrolet Small Block

Schoenfeld IMCA-UMP Stock Car Headers - 1-3/4 to 1-7/8" Primary - 3-1/2" Collector - Steel - Black Paint - SB Chevy 23003W This adapter is included 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,