Availability
Headers
Header Bolts, Hex Head, 5/16 in. Wrench, Stainless Steel, Polished, 3/8 in.-16, 0.750 in. U.H.L., Set of 12
Part Number: ARP-400-1107
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Flanges, No Stubs, Steel, 0.250 in. Thick, 1.750 in. Port, Each
Part Number: SCH-0309
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Collector, 4 Into 1, Weld-on, 1.875 in. Primaries, 3 in. Collector, Steel, Natural, Each
Part Number: SCH-WO83040
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Bolts, 12-Point, 3/8 in. Wrench, Custom 450, Black Oxide, Chevy, Small Block, Drilled, Set of 12
Part Number: ARP-100-1203
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Bolts, Wedge Locking, Hex Head, Steel, Black Oxide, 3/8-16 in. Thread, 0.750 in. UHL, Chevy, Set of 12
Part Number: PRO-66751
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Bolts, Hex Head, Stainless Steel, Polished, 3/8 in.-16, Oldsmobile, 330-455, Set of 14
Part Number: ARP-480-1101
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Fasteners, Header Bolt Kits, Flanged, 3/8 in. - 16 Thread Size, Steel, Black Oxide, 0.750 in. Underhead Length, Set of 12
Part Number: EDL-8540
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Collector, 4 Into 1, Weld-on, 2 in. Primaries, 3.5 in. Collector, Steel, Natural, Each
Part Number: SCH-WO03540
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Bolts, 12-Point, 5/16 in. Wrench, Stainless Steel, Polished, 3/8 in.-16, 0.750 in. U.H.L., Set of 12
Part Number: ARP-400-1207
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Bolts, Hex Head, 3/8 in. Wrench, Drilled, Custom 450, Black Oxide, Chevy, Small Block, Set of 12
Part Number: ARP-100-1103
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Collector, 3 Into 1, Weld-on, 1.75 in. Primaries, 3 in. Collector, Steel, Natural, Each
Part Number: SCH-WO73030
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Fasteners, Bolts, Hex Head, Steel, Black Oxide, Chevy, Chrysler, Pontiac, Set of 12
Part Number: MRG-3409
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Fasteners, Bolts, Allen Head, Black Oxide, Steel, 8mm x 1.25 Thread, 25mm Length, Set of 16
Part Number: MRG-978G
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Collector, 4 Into 1, Weld-on, 2.25 in. Primaries, 4 in. Collector, Steel, Natural, Each
Part Number: SCH-WO24040
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Bolts, 12-Point, Stainless Steel, Polished, 3/8 in.-16, Oldsmobile, 330-455, Set of 14
Part Number: ARP-480-1201
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Heat Exchanger Components, J Tubes, Volkswagen, Pair
Part Number: VWP-B2-5100-0
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Studs, Hex Nuts, Custom 450, Black Oxide, Buick 3.8L, Set of 12
Part Number: ARP-120-1412
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Fasteners, Bolts, Locking, Double Hex Head, Steel, Nickel Plated, Dodge, 3.9L, V6, Set of 8
Part Number: STG-6916
Estimated Ship Date: Today
Special Offer
Buy Locking Header Bolts, get half off Collector Bolt Kit!
Estimated Ship Date: Today
Header Flange, 304 Stainless Steel, 3/8 in. Thick, for use on Honda® Civic Si, K24, Each
Part Number: VPE-14224
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Header Collector, Formed, 2 Into 1, Weld-on, 1 3/4 in. Primary, 2.25 in. Collector Diameter, 6.5 in. Length
Part Number: PTE-H7663
Not Yet Reviewed
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
HEADER BOLT KIT, GM LS, 4.8, 5.3, 5.7, 30mm UHL, 3/8" Wrenching, Set of 12ea
Part Number: PQX-1011902
Not Yet Reviewed
Estimated Ship Date: May 22, 2026 if ordered today
Estimated Ship Date: May 22, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Header Flanges, No Stubs, Steel, 0.250 in. Thick, 1.875 in. Port, Each
Part Number: SCH-0120
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Collector Flange, Steel, Natural, 4.0 in. Inside Diameter, 3-Bolt, Each
Part Number: KOK-7113-S
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
PARTS PACK
Part Number: STG-PP8933
Not Yet Reviewed
Estimated Ship Date: Apr 3, 2026 if ordered today
Estimated Ship Date: Apr 3, 2026 if ordered today
Header Collector, Formed, 2 Into 1, Weld-on, 1 5/8 in. Primary, 2.0 in. Collector Diameter, 6.5 in. Length
Part Number: PTE-H7659
Estimated Ship Date: Apr 13, 2026 if ordered today
Estimated Ship Date: Apr 13, 2026 if ordered today
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