Product Overview
2 1/2" Round, 18 Deg angled up, Individual, GM Big Block Chevy, Sonny's Semi Hemi, 5.0" Bore Space, 3/8" Thick, CNC Machined Header Flange. Available in mild steel or stainless steel.
**4 flanges are required for a full side, 8 flanges are needed for a full set**