Schoenfeld IMCA-UMP Modified Headers - 1.625 in Primary - 3 in Collector - Small Block Chevy (Pair) 1131 SSLK With Underseat Storage

With Underseat Storage

Ideal for carbureted nitrous engines

Standard Duty Engine Cradles

90 mm Throttle Body Flange

Lower Housing Casting

Schoenfeld IMCA-UMP Modified Headers - 1.625 in Primary - 3 in Collector - Small Block Chevy (Pair) 1131 SSLK With Underseat StorageSchoenfeld IMCA UMP Modified Headers 1. 625 in Primary 3 in Collector Small Block Chevy (Pair) Product Description: Headers IMCA UMP Modified 1. 625 in Primary 3 in Collector Gaskets Hardware Included Steel Black Paint Small Block Chevy Pair Founded in 1974, Schoenfeld Headers is the largest circle track header manufacturer in the world. Schoenfeld Headers is the manufacturer of competition headers, mufflers and exhaust systems. Schoenfeld Headers