Schoenfeld IMCA Headers - 1-3/4" Diameter - Standard SB Chevy 711031 Digital rotary switches permit easy

Digital rotary switches permit easy adjustment

Measurements: 48"W x 11"H x 12"D

1977-1978 GMC K15

Can operate from 8-20 volts

7156 or 3756

Schoenfeld IMCA Headers - 1-3/4" Diameter - Standard SB Chevy 711031 Digital rotary switches permit easyIMCA 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