Beyea SBC Modified Header 1-5/8in 604 Crate IDM-604-S1G
Part Number: BEYIDM-604-S1GBEYEA CUSTOM HEADERS
- SKU:
- BEYIDM-604-S1G
- MPN:
- IDM-604-S1G
- Condition:
- New
- Availability:
- Ships Same Business Day
- Weight:
- 32.75 LBS
Description
If you're running a 604 crate engine in IMICA or UMP competition, exhaust scavenging directly impacts your power output and consistency across heat cycles. The Beyea SBC Modified Header is purpose-built for dirt modified racing, delivering optimized primary tube sizing and collector design to maximize low-end torque and mid-range pull where track position is decided. This is a complete bolt-on kit that eliminates guesswork and gets you focused on setup and driver performance.
- Primary diameter: 1-5/8–1-3/4 in
- Collector diameter: 2-3/4 in
- Material: Steel construction
- Finish: Black paint
- Engine platform: Small Block Chevy
- Application: IMICA/UMP Dirt Modified
- Crate engine: 604 spec
- Configuration: Complete kit
- Installation: Bolt-on
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