CHEVROLET Header Flanges

Header Flanges, Steel, 3/8 in. Thick, 1.75 in. Diameter Round Port, Chevy, LS, Pair

Part Number: SUM-670203

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 1/12/2026

Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy Big Block, Fits 2.25 in. Primaries, Pair

Part Number: STW-HFBBC225

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Estimated Ship Date: Monday 1/12/2026

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, 2.00 in. Diameter Round Port, Chevy, LS, Pair

Part Number: SUM-670202-SS

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/12/2026

Header Flanges, Steel, 3/8 in. Thick, 2.0 in. Diameter Round Port, Chevy, Big Block, Pair

Part Number: SUM-670201

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/12/2026

Header Flanges, 304 Stainless Steel, 3/8 in. Thick, 2.50 in. Diameter Round Raised Port, Chevrolet, BBC, Pair

Part Number: STW-HFBBCH250RSD

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Estimated Ship Date: Monday 1/12/2026

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, 2.0 in. Diameter Round Port, Chevy, Big Block, Pair

Part Number: SUM-670201-SS

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Estimated Ship Date: Monday 1/12/2026

Header Flanges, Steel, 3/8 in. Thick, 2.00 in. Diameter Round Port, Chevy, LS, Pair

Part Number: SUM-670202

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/12/2026

Header Flanges, No Stubs, Steel, 0.375 in. Thick, 2 in. Port, Gaskets, Bolts, Chevy, Small Block, Pair

Part Number: PTE-H7895

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Estimated Ship Date: Monday 1/12/2026

FLANGE, FLANGE SBC 2" STAHL, 5/16'' TH

Part Number: SCH-0145-5

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Estimated Ship Date: Monday 1/12/2026

Header Flange, Stahl Pattern, 304 Stainless Steel, 0.375 in. Thick, 1.875 in. Primaries, Chevy Small Block, Each

Part Number: KOK-7034-S

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Estimated Ship Date: Monday 1/12/2026

Header Flanges, No Stubs, Steel, 0.313 in. Thick, 1.625 in. Round Port, Gaskets, Bolts, Pair

Part Number: PTE-H7864

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/12/2026

Turbo Header Flanges, 304 Stainless Steel, 1/2 in. Thick, Chevy GM LS, LSX,, Fits 1.875 in. Primaries, Pair

Part Number: SUM-670300-1875

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Estimated Ship Date: Monday 1/12/2026

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Header Flanges, No Stubs, Steel, 0.375 in. Thick, 2.000 in. Port, Gaskets, Bolts, Pair

Part Number: PTE-H7899

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/12/2026

Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy Big Block, Fits 2.125 in. Primaries, Pair

Part Number: STW-HFBBC212

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Estimated Ship Date: Monday 1/12/2026

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Header Flange, 304 Stainless Steel, 3/8 in. Thick, Chevy LS, Pair

Part Number: VPE-14332

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Estimated Ship Date: Monday 1/12/2026

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Header Flanges, No Stubs, Steel, 0.375 in. Thick, 1.50 in. Port, Gaskets, Bolts, Chevy, 4.3L, Pair

Part Number: PTE-H7883

3.0 out of 5 stars ( 3 )

Estimated Ship Date: Feb 3, 2026 if ordered today

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Header Flanges, No Stubs, Steel, 0.375 in. Thick, 1.625 in. Port, Gaskets, Bolts, Pair

Part Number: PTE-H7831

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Estimated Ship Date: Feb 2, 2026 if ordered today

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Header Flanges, No Stubs, Stainless, 0.375 in. Thick, 2.125 in. Port, Each

Part Number: KOK-7040S

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Estimated Ship Date: Mar 10, 2026 if ordered today

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy, LS1/LS6, Fits 1.75 in. Primaries, Pair

Part Number: STW-HFLS1175

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Header Flange Kit, Small Block Chevy, 3/8" Thick, Includes 6 Plates

Part Number: MOR-67650

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Estimated Ship Date: Feb 5, 2026 if ordered today

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HDR FLANGE CHEV OUTER SBC

Part Number: PTE-H7833

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Estimated Ship Date: Feb 3, 2026 if ordered today

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Turbo Header Flanges, 304 Stainless Steel, 1/2 in. Thick, Chevy GM LS, LSX,, Fits 1.750 in. Primaries, Pair

Part Number: SUM-670300-175

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Estimated Ship Date: Monday 1/12/2026

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy Big Block, Fits 1.75 in. Primaries, Pair

Part Number: STW-HFBBC175

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy, LS1/LS6, Fits 2 in. Primaries, Pair

Part Number: STW-HFLS1200

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Estimated Ship Date: Mar 16, 2026 if ordered today

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