1966 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, 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, 1.000 in. UHL, Set of 16

Part Number: PRO-66756

4.55 out of 5 stars ( 11 )

Estimated Ship Date: Today

Header Bolts, Hex Head, 3/8 in. Wrench, Custom 450, Black Oxide, 3/8 in.-16, 1.000 in. U.H.L., Set of 16

Part Number: ARP-100-1112

5.0 out of 5 stars ( 12 )

Estimated Ship Date: Today

Header Bolts, 3/8-16 in., 12-Point, Stainless Steel, Polished, Chevrolet, Big Block, Set of 16

Part Number: ARP-400-1217

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Header Bolts, 12-Point, 3/8 in. Wrench, Stainless Steel, Black Oxide, Chevy, Small Block, Set of 12

Part Number: SUM-910212

5.0 out of 5 stars ( 8 )

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 Flanges, No Stubs, Steel, 0.250 in. Thick, 1.750 in. Port, Each

Part Number: SCH-0309

5.0 out of 5 stars ( 1 )

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 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

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

Part Number: CTR-84-100

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Jan 27, 2026 if ordered today

• Special Order

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

Part Number: SCH-01032

Not Yet Reviewed

Estimated Ship Date: Today

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

Part Number: SCH-0306

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

• Special Order

Block-Off Covers, Exhaust Port, Aluminum, 14 Degree Dart Big Chief Heads, Chevy Big Block, Pair

Part Number: FOG-3175A

Not Yet Reviewed

Estimated Ship Date: Jan 20, 2026 if ordered today

• Drop Ship
• Special Order

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

Part Number: CTR-84-600

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Jan 27, 2026 if ordered today

• Special Order

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

Part Number: SCH-03131-5

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

• Special Order

Header Flanges, No Stubs, Steel, 0.313 in. Thick, 1.625 in. Port, Each

Part Number: SCH-0320-5

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

• Special Order

Header Flanges, No Stubs, Steel, 0.250 in. Thick, 2.125 in. Port, Each

Part Number: SCH-0430

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 if ordered today

• Special Order

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

Part Number: SCH-0414

Not Yet Reviewed

Estimated Ship Date: Jan 21, 2026 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: Jan 21, 2026 if ordered today

• Special Order

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

Part Number: SCH-0316

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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: Jan 21, 2026 if ordered today

• Special Order