Schoenfeld - 1.75 to 1.875 in Primary - 3.5 in Collector - 18 Degree Head - Small Block Chevy (Pair) Rocker Cover Fastener Use to bench-top (out of

Use to bench-top (out of vehicle) flash LS series PCMs with service numbers 12200411 and 9354896

Spins Freer & Runs Cooler

1957 Chevrolet One-Fifty Series Base CID 396 Naturally Aspirated GAS

Both ignitions are compatible on 4

Kit comes with drill bit linkage and hardware

Schoenfeld - 1.75 to 1.875 in Primary - 3.5 in Collector - 18 Degree Head - Small Block Chevy (Pair) Rocker Cover Fastener Use to bench-top (out ofProduct Description: Headers 1. 75 to 1. 875 in Primary 3. 5 in Collector Gaskets Hardware Included Steel Black Paint 18 Degree Head 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 listen to their customers, understanding your needs and giving you a quality product at a