Beyea Custom Headers IDM23S2-R IMCA/UMP GRT Modified Header 1 3/4 x 1 7/8 x3.5

Chevy  IMCA Modified  1-5/8" x 1-7/8" x 3.5"

(Right side only)

IMCA/UMP, 1-5/8 to 1-7/8 in Primary, 3.5 in Collector, Steel, Black Paint, 23 Degree Head, Small Block Chevy, Kit

Fits BMS, GRT, Hoffman, Pierce, and SSR  Modified Chassis