Availability
Showing In Stock Items. Show All 28 Items.
Header Flanges, 304 Stainless Steel, 304, 3/8 in. Thick, 1.75 in. Diameter Round Port, Chevy, LS, Pair
Part Number: SUM-670203-SS
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
BUILD IT WITH SUMMIT!
Header Flanges, Steel, 3/8 in. Thick, 1.75 in. Diameter Round Port, Chevy, LS, Pair
Part Number: SUM-670203
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Flanges, Steel, 3/8 in. Thick, 2.00 in. Diameter Round Port, Chevy, LS, Pair
Part Number: SUM-670202
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, 2.00 in. Diameter Round Port, Chevy, LS, Pair
Part Number: SUM-670202-SS
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Flanges, No Stubs, Steel, 0.375 in. Thick, 1.50 in. Port, Gaskets, Bolts, Chevy, 4.3L, Pair
Part Number: PTE-H7883
Estimated Ship Date: Nov 28, 2025 if ordered today
Estimated Ship Date: Nov 28, 2025 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy, LS1/LS6, Fits 1.75 in. Primaries, Pair
Part Number: STW-HFLS1175
Not Yet Reviewed
Estimated Ship Date: Dec 23, 2025 if ordered today
Estimated Ship Date: Dec 23, 2025 if ordered today
Header Flange, 304 Stainless Steel, 3/8 in. Thick, Chevy LS, Pair
Part Number: VPE-14332
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Flange, 304 Stainless Steel, 3/8 in. Thick, Subaru, EJ20, Pair
Part Number: VPE-14220S
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Flanges, No Stubs, Stainless, 0.375 in. Thick, 1.750 in. Port, Each
Part Number: KOK-7028-SA
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy, LS1/LS6, Fits 1.875 in. Primaries, Pair
Part Number: STW-HFLS1188
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford, 4.6L, 2V, Fits 1.625 in. Primaries, Pair
Part Number: STW-HF462V163
Not Yet Reviewed
Estimated Ship Date: Dec 23, 2025 if ordered today
Estimated Ship Date: Dec 23, 2025 if ordered today
Header Flange, Mild Steel, 1/2 in. Thick, Audi, 2.7T, 3.0L, Pair
Part Number: VPE-14627
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Flange, Mild Steel, 1/2 in. Thick, Audi, Volkswagen, 1.8T, Each
Part Number: VPE-14618
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Turbo Header Flanges, 304 Stainless Steel, 1/2 in. Thick, Chevy GM LS, LSX,, Fits 2.00 in. Primaries, Pair
Part Number: SUM-670300-200
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Flanges, No Stubs, Stainless, 0.375 in. Thick, 2.000 in. Port, Each
Part Number: KOK-7046-S2
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
Header Flanges, No Stubs, Stainless, 0.375 in. Thick, 1.750 in. Port, Each
Part Number: KOK-7046S
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
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: Mar 4, 2026 if ordered today
Estimated Ship Date: Mar 4, 2026 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Ford, 4.6L, 2V, Fits 1.75 in. Primaries, Pair
Part Number: STW-HF462V175
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Hemi 5.7L, Fits 1.625 in. Primaries, Pair
Part Number: STW-HF57H163
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Hemi 5.7L, Fits 1.75 in. Primaries, Pair
Part Number: STW-HF57H175
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy, LS1/LS6, Fits 1.625 in. Primaries, Pair
Part Number: STW-HFLS1163
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
Header Flanges, 304 Stainless Steel, 3/8 in. Thick, Chevy, LS1/LS6, Fits 2 in. Primaries, Pair
Part Number: STW-HFLS1200
Not Yet Reviewed
Estimated Ship Date: Dec 22, 2025 if ordered today
Estimated Ship Date: Dec 22, 2025 if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Summit Racing™ Header Flanges SUM-670203
