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Charts & Guides for Part Number BEY-3973
Beyea IMCA and UMP Dirt Modified Headers IDM-2311XS247D
Part Number: BEY-3973
Beyea IMCA and UMP Dirt Modified Headers
Headers, IMCA, UMP, Modified, 4-1, Steel, Painted, 3.50 in. Collector, Chevy, Small Block, Pair
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Estimated Ship Date: Nov 12, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
IDM-2311XS247D
Part Type:
Product Line:
Summit Racing Part Number:
BEY-3973
Header Style:
Circle Track 4-1 one-piece
Header Material:
Steel
Primary Tube Outside Diameter (in.):
1 3/4 - 1 7/8 in.
Header Color:
Temporary non-high temperature paint
Weld-Up:
No
Collector Diameter (in.):
3.50
Collector Reducers Included:
No
Tuned:
Yes
Flange Thickness (in.):
0.31 in.
Bolts/Studs Included:
No
Gaskets Included:
No
Crossover Pipe Included:
No
Catalytic Converter(s) Included:
No
Motor Mounts Included:
No
Transmission Mount Included:
No
Quantity:
Sold as a pair.
Notes:
Designed to fit Brodix 23 11X heads. Designed to work with 4/7 cam firing. The paint applied to these headers is a temporary coating only and is designed to burn off during use. High temperature paint or other high temperature coatings are recommended.
Beyea IMCA and UMP Dirt Modified Headers
Beyea IMCA and UMP dirt modified headers up the power curve for your Circle Track car. Beyea's passion for header fabrication starts with quality steel for long-lasting durability and performance. Choose Beyea IMCA and UMP dirt modified headers for a performance boost!
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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