Schoenfeld IMCA Headers - 1-3/4" Diameter - Standard SB Chevy Shoulder Pad SFI homologated to the SFI

SFI homologated to the SFI 3

250 lb/in Spring Rate

Header Bolt

Other multiple spark discharge systems typically drop off to one spark at about 3000 RPM

Schoenfeld IMCA Headers - 1-3/4" Diameter - Standard SB Chevy Shoulder Pad SFI homologated to the SFIIMCA Modified Headers fit D&M, Dirt Works, Swartz , etc. Straight out design, one piece welded construction. 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 mufflers, mandrel