Schoenfeld Sprint Car Headers - 1-3/4 to 1-7/8" Primary - 3-1/2" Collector - Dart Heads - Small Block Ford 121023 The ratcheting mechanism is cranked

The ratcheting mechanism is cranked by hand with the included 1/4" ratchet handle

4-7/8 in ID

U-BOLT 1/2 in

KRC's High Performance Water Pump (KRC 15101001) Has A Water Pump Height Of 5

Designed from the ground up in Arroyo Grande California

Schoenfeld Sprint Car Headers - 1-3/4 to 1-7/8" Primary - 3-1/2" Collector - Dart Heads - Small Block Ford 121023 The ratcheting mechanism is crankedProduct Description: Headers Sprint 1. 75 to 1. 875 in Primary 3. 5 in Collector Steel Black Paint Dart Heads Small Block Ford 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,