Description
Schoenfeld’s SBC IMCA headers are engineered to extract maximum exhaust scavenging efficiency in tight circle track competition. The 1-5/8″ primary tubes provide optimized flow characteristics for Small Block Chevy platforms running IMCA Modified rules, while the 3″ collector transitions exhaust gases with minimal backpressure. Whether you’re fine-tuning a competitive edge at the local oval or running regionally sanctioned events, these headers deliver the bolt-on performance and durability required for consistent race-day reliability.
- 1-5/8″ primary tubes
- 3″ collector outlet
- Small Block Chevy compatible
- IMCA Modified approved
- Steel construction
- Black paint finish
- Bolt-on kit
- Competition circle track
- Schoenfeld MPN 161






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