Description
Extracting peak horsepower and torque from your Small Block Chevy requires a header designed specifically for competition conditions—and Schoenfeld’s IMCA Modified long tube design delivers exactly that. The stepped primary tube configuration (1-3/4 to 1-7/8 inches) optimizes scavenging efficiency across your rpm range, while the 3-1/2 inch collector minimizes backpressure and maximizes exhaust flow. Built from steel with a durable black paint finish, this bolt-on kit is engineered to survive the demands of circle track racing and put real power gains on the dyno.
- Small Block Chevy compatible
- IMCA Modified specification
- Stepped primaries: 1-3/4 to 1-7/8 inches
- 3-1/2 inch collector
- Steel construction
- Black paint finish
- Complete bolt-on kit
- MPN: 1186V18






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