CHEVROLET Chevy small block Gen I Headers

Header Bolts, Split Lock, 3/8-16 in., 12-Point, Steel, Black Oxide, Chevy, Mopar, AMC, Set of 12

Part Number: SUM-910120

4.54 out of 5 stars ( 26 )

Estimated Ship Date: Today

Header Fasteners, Locking Header Bolts, 3/8 in.-16 Thread, Internal Allen/Hex Head, Stainless Steel, Chevy, Set of 12

Part Number: MRG-2230G

4.54 out of 5 stars ( 26 )

Estimated Ship Date: Today

Header Fasteners, Locking Header Bolts, Internal Allen/Hex Head, Stainless Steel, Chevy, Ford, Set of 16

Part Number: MRG-2231G

4.58 out of 5 stars ( 12 )

Estimated Ship Date: Today

Header Bolts, Wedge Locking, Hex Head, Steel, Black Oxide, 3/8-16 in. Thread, 1 in. UHL, Chevy, Set of 12

Part Number: PRO-66753

4.57 out of 5 stars ( 23 )

Estimated Ship Date: Today

Header Fasteners, Locking Header Bolts, Internal Allen/Hex Head, Stainless Steel, Chevy, Set of 12

Part Number: MRG-2235G

4.89 out of 5 stars ( 9 )

Estimated Ship Date: Today

Header Fasteners, Bolts, Hex Head, Stainless Steel, Chevy, Chrysler, Pontiac, Set of 12

Part Number: MRG-2210G

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Header Fasteners, Bolts, Hex Head, Steel, Black Oxide, Ford, GM, Mercury, Mopar, Set of 16

Part Number: MOR-38710

4.38 out of 5 stars ( 13 )

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 16

Part Number: PRO-66752

4.73 out of 5 stars ( 11 )

Estimated Ship Date: Today

Header Studs, Hex Nuts, Custom 450, Black Oxide, Chevy Small Block, Set of 12

Part Number: ARP-100-1412

3.4 out of 5 stars ( 5 )

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

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Today

Header Bolts, Hex Head, 3/8 in. Wrench, Drilled, Stainless Steel, Polished, Chevy, Small Block, Set of 12

Part Number: ARP-400-1103

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Header Flanges, No Stubs, Steel, 0.250 in. Thick, 1.625 in. Port, Each

Part Number: SCH-01101

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Header Flanges, No Stubs, Steel, 0.250 in. Thick, 1.875 in. Port, Each

Part Number: SCH-0112

5.0 out of 5 stars ( 1 )

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

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

Header Fasteners, Bolts, Hex Head, Stainless Steel, Chevy, Ford, Buick, Set of 16

Part Number: MRG-2211G

2.33 out of 5 stars ( 3 )

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

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: Today

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

Header Fasteners, Bolts, Hex Head, Steel, Black Oxide, Chevy, Chrysler, Pontiac, Set of 12

Part Number: MRG-3409

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 2, 2025 if ordered today

Header Bolts, 12-Point, 3/8 in. Wrench, Drilled, Stainless, Polished, 3/8 in.-16, 0.750 in. U.H.L., Set of 12

Part Number: ARP-400-1203

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Special Order

Exhaust Block-Off Plates, Chevy, Small Block, Pair

Part Number: CTR-84-100

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Today

Header Flanges, No Stubs, Steel, 0.313 in. Thick Flange, 1.875 in. Port, Each

Part Number: SCH-0120-5

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Special Order

Header Flanges, Outer Flange, No Stubs, Steel, 0.250 in. Thick, 1.875 in. Port, Each

Part Number: SCH-0133

Not Yet Reviewed

Estimated Ship Date: Tomorrow if ordered today

• Special Order

Header Flange, No Stubs, Steel, 0.250 in. Thick, 1.750 in. Port, Each

Part Number: SCH-01111

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow if ordered today

• Special Order