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: Tomorrow

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: Tomorrow

Header Flanges, Steel, 3/8 in. Thick, Ford, Small Block Windsor, with High Port® Heads, Pair

Part Number: TFS-51700801

3.6 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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: Tomorrow

Header Flanges, Steel, 3/8 in. Thick, 2.00 in. Diameter Round Port, 7.3 Ford Godzilla 21'-up, Pair

Part Number: SUM-670204

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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: Tomorrow

Header Flanges, Stock Bolt Pattern, Steel, Rectangular Port, 0.375 in. Thick, Chrysler, Big Block, Pair

Part Number: PTE-H7828

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

• Drop Ship
• Special Order

Header Flanges, No Stubs, Steel, 0.375 in. Thick, 1.750 in. Port, Gaskets, Bolts, Pair

Part Number: PTE-H7832

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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

Part Number: PTE-H7863

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

Header Flanges, Steel, 3/8 in. Thick, 2.000 in. Diameter D-Port, Mopar Hemi Gen III, Pair

Part Number: SUM-270209

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

• Free Shipping

Header Flanges, No Stubs, Steel, 0.375 in. Thick, 2.125 in. Port, Gaskets, Bolts, Ford, 390-428 FE, Pair

Part Number: PTE-H7829

Not Yet Reviewed

Estimated Ship Date: Mar 24, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Part Number: PTE-H7831

Not Yet Reviewed

Estimated Ship Date: Mar 24, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

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

Part Number: PTE-H7841

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 24, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Flanges, Steel, 3/8 in. Thick, 1.875 in. Diameter D-Port, Mopar Hemi Gen III, Pair

Part Number: SUM-270205

Not Yet Reviewed

Estimated Ship Date: Tomorrow

• Free Shipping

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

Part Number: PTE-H7850

Not Yet Reviewed

Estimated Ship Date: Mar 24, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Flanges, No Stubs, Steel, 0.375 in. Thick, 1.875 in. Port, Gaskets, Bolts, Pair

Part Number: PTE-H7853

Not Yet Reviewed

Estimated Ship Date: Mar 24, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Flanges, No Stubs, Steel, 0.375 in. Thick, 2 in. Port, Gaskets, Bolts, Chrysler, Dodge, 354, 392, Pair

Part Number: PTE-H7837

Not Yet Reviewed

Estimated Ship Date: Mar 24, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Flanges, No Stubs, Steel, 0.375 in. Thick, 2.125 in. Port, Gaskets, Bolts, Chevy, Big Block, Pair

Part Number: PTE-H7898

Not Yet Reviewed

Estimated Ship Date: Mar 24, 2026 if ordered today

• Drop Ship
• Free Shipping
• Special Order

Header Flanges, Mild Steel, .375 in. Thick, Chevy, Small Block, LS1/LS2/LS6/LS7, Each

Part Number: NAL-12480130

Not Yet Reviewed

Estimated Ship Date: Jun 29, 2026 if ordered today

• Drop Ship
• Special Order