Schoenfeld SB Chevy Modified Header - Long Tube - Crate Engine - 1-5/8in x 1-3/4 Tube Hose Sleeve The crank bolt holes are

The crank bolt holes are bored in position to exacting tolerances in both size and location on CNC machines

1993-2000 GMC C2500

25 in W x 20

0L engine and 1986 Mustang GT 5

8 x 5 in Round Body

Schoenfeld SB Chevy Modified Header - Long Tube - Crate Engine - 1-5/8in x 1-3/4 Tube Hose Sleeve The crank bolt holes areProduct Description: Headers Dirt Late Model 1. 625 to 1. 75 in Primary 3 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,