Schoenfeld Dirt Late Model Tri-Y Headers - Tri-Y - 1.75 to 1.875 in Primary - 3.5 in Collector - Black Paint - Small Block Chevy Suspension Tubes & Components Works with GM automatic transmissions

Works with GM automatic transmissions using a lockup style torque converter and a mechanical speedometer

28 x 2-3/8 x 7/8 in

Constructed from 6061-T6 aluminum this solid bar stud girdle set for 7/16" stud Ford 289-302 and 351 Windsor ties rocker studs together to properly locate them

or OEM look-a-like dissimilar material thickness cores as their foundation

Designed for 157 tooth flywheel and 10

Schoenfeld Dirt Late Model Tri-Y Headers - Tri-Y - 1.75 to 1.875 in Primary - 3.5 in Collector - Black Paint - Small Block Chevy Suspension Tubes & Components Works with GM automatic transmissionsProduct Description: Headers Dirt Late Model Tri Y 1. 75 to 1. 875 in Primary 3. 5 in Collector Steel Black Paint Small Block Chevy 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,