Header Flanges

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

Part Number: STW-HFBBF1225

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

Part Number: STW-HFBBC200

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Header Flanges with Stubs, Mild Steel, 5/16 in. Thick, Square 1 3/4 in. Port, Chevy, Small Block, Kit

Part Number: HOK-11622HKR

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Nov 23, 2026 if ordered today

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Header Flanges, Header Flange Kits, Chevy Big Block Bolt Pattern, Steel, 0.375 in. Thick, 2.250 in. Port Size, Chevy, Big Block, Pair

Part Number: PTE-H7887

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Estimated Ship Date: Dec 3, 2026 if ordered today

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

Part Number: VPE-14332

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Header Flanges, Header Flange Kits, Chevy Big Block Bolt Pattern, Steel, 0.375 in. Thick, 2.500 in. Port Size, Chevy, Big Block, Pair

Part Number: PTE-H7889

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Estimated Ship Date: Dec 3, 2026 if ordered today

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford Small Block, Fits 1.625 in. Primaries, Pair

Part Number: STW-HFSBF1

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Estimated Ship Date: Jan 11, 2027 if ordered today

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Exhaust Manifold Flange, Stainless Steel, 0.375 in. Thickness, K-series, Each

Part Number: VPE-1460K

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Header Flanges, Header Flange Kits, Chevy Big Block Bolt Pattern, Steel, 0.375 in. Thick, 2.125 in. Port Size, Chevy, Big Block, Pair

Part Number: PTE-H7886

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Estimated Ship Date: Dec 2, 2026 if ordered today

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Header Flanges, No Stubs, Steel, 0.313 in. Thick, 1.750 in. Port, Gaskets, Bolts, Pair

Part Number: PTE-H7892

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 2, 2026 if ordered today

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Header Flanges, No Stubs, Steel, 0.313 in. Thick, 1.750 in. Port, Gaskets, Bolts, Pair

Part Number: PTE-H7893

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 2, 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: Jan 11, 2027 if ordered today

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Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy, LS1/LS6, Fits 1.625 in. Primaries, Pair

Part Number: STW-HFLS1163

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Estimated Ship Date: Jan 11, 2027 if ordered today

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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: Dec 3, 2026 if ordered today

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Exhaust Manifold Flange, Stainless Steel, 0.375 in. Thickness, H22, Each

Part Number: VPE-1460H

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Exhaust Manifold Flange, Stainless Steel, 0.375 in. Thickness, 1.8T, Each

Part Number: VPE-1460V

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Header Flange, 304 Stainless Steel, 3/8 in. Thick, Subaru, EJ20, Pair

Part Number: VPE-14220S

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Header Flanges, Exhaust Manifold Flanges, Stainless, 0.375 in. Thick, Designed Specifically for Porsche 996/911 Engines, Porsche, 3.4L/3.6L/3.8L, Pair

Part Number: VPE-14296

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Estimated Ship Date: Dec 28, 2026 if ordered today

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Header Flanges, Header Flange Kits, Stock Bolt Pattern, Steel, 0.375 in. Thick, 2.000 in. Port Size, Ford Boss 302, 351, Pair

Part Number: PTE-H7845

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Estimated Ship Date: Dec 3, 2026 if ordered today

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Header Flanges, Header Flange Kits, Stock Bolt Pattern, Steel, 0.313 in. Thick, 1.750 in. Port Size, Chrysler, Dodge, Plymouth, Small Block, Pair

Part Number: PTE-H7880

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 3, 2026 if ordered today

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Header Flange, 304 Stainless Steel, 3/8 in. Thick, for use on Honda® Civic Si, K24, Each

Part Number: VPE-14224

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Header Flanges, No Stubs, Steel, 0.313 in. Thick, 2.000 in. Port, Gaskets, Bolts, Pair

Part Number: PTE-H7881

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Estimated Ship Date: Dec 3, 2026 if ordered today

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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: Jan 11, 2027 if ordered today

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Header Flanges, Header Flange Kits, Stock Bolt Pattern, Steel, 0.375 in. Thick, 1.875 in. Port Size, Chevy, LS7, Pair

Part Number: PTE-H7807

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Estimated Ship Date: Dec 3, 2026 if ordered today

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Exhaust Manifold Flange, Stainless Steel, 0.375 in. Thickness, Each

Part Number: VPE-14336

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