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Big Block Chevy Round Port Billet CNC Stainless Header Flanges-Single Port

CNC, Big Block Chevy

SHM-1490s-CNC-304
Available in 1 7/8", 2", 2 1/8", 2 1/4", or 2 1/2" Round Port Options. SOLD AS A SET OF 8
Unique Item
Availability: These Big Block Chevy Single Port Billet CNC Header Flanges are currently made-to-order. Lead times are shorter than our custom CNC profiles, but are still estimates only.
Pricing: $469.95

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Description

Big Block Chevy Billet CNC- Single Port Stainless Header Flanges

Precision milled from 3/8" 304 stainless steel, these Big Block Chevy CNC machined header flanges are the perfect touch to finish off that next custom set of headers. Designed for a lightweight profile, snap-fit ports, and a beautiful finish, these CNC machined header flanges are second to none. They all come standard with chamfered edges, and precision milled ports.

These Big Block Chevy Round Port CNC Machined flanges are sold AS A SET OF 8.

They are available in 1 7/8", 2", 2 1/8", 2 1/4", 2 3/8", 2 1/2", 2 5/8" or even 2 3/4" port sizes.

These are offered in a standard port or raised port configuration without requiring a custom design submission.

These flanges fit all conventional Big Block Chevy cylinder heads with a standard 4.84" bore spacing, and standard port locations.

See our custom CNC Flange listing for unique header flanges with custom variants such as:

  • Various material types & thicknesses
  • Any engine/cylinder head combination
  • O-Ring grooves with O-Ring installation
  • Counterbore for a tubing land
  • Lightened flanges
  • Port Blend- requires a non round port.

 CNC Machined flanges are FINAL SALE. We will not accept refunds or returns on these products.

Every flange will be precision skimmed to ensure flatness and straightness. All bolt holes and flange port holes will be precisely chamfered for a smooth, bur free edge.

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