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![Header Flange for Small Block Chevy [Oval Port]](https://www.jegs.com/images/mini_750/500/555/555-31800.jpg)
Vehicle Info NeededJEGSPART NUMBER: 555-31800
Header Flange for Small Block Chevy [Oval Port]
$3974$46.99You Save$7.25
2 left in stock
Ships on Nov 02, 2026
Lowest Price GuaranteeChevy Small Block Header Flanges
- Header Flange
- Small Block Chevy
- Oval Port
- 1 1/2 in. W x 1 13/16 in. H
- 3/8 in. Thick Steel Flange
- Sold Individually
- Made in the USA
Laser Cut Header Flanges for a Perfect Fit
JEGS Exhaust Header Flanges are precision CNC laser cut from 3/8 in. thick (Except Where Noted) steel plate for strength and durability. Available in a variety of configurations for the most common applications. Sold Individually. Gaskets, bolts and tubing kit are sold separately. Requires welding.
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Part TypeExhaust Flange
Product LineJEGS Exhaust Header Flanges
BrandJEGS
Package Height0.4
Package Width5.3
Package Length22.5
Weight2.6 PG
Part CategoryPerformance Parts
Includes Stubs For Primary TubesNo
Gaskets IncludedNo
Header Flange Thickness0.375 in (9.525 mm)
Header Flange Port Size1.813 in (46.05 mm)
Header Flange Port ShapeOval
Header Bolt PatternStock
Header Flange MaterialSteel
Part FitmentSemi Universal
Engine Make/SizeChevy Small Block (262-400)
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
