CHEVROLET Chevy big block Mark IV Headers

Header Bolts, 12-Point, 3/8 in. Wrench, Stainless Steel, Polished, 3/8 in.-16, 1.000 in. U.H.L., Set of 16

Part Number: ARP-400-1212

4.88 out of 5 stars ( 32 )

Estimated Ship Date: Today

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

Part Number: ARP-400-1202

4.64 out of 5 stars ( 28 )

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, Hex Head, 3/8 in. Wrench, Stainless Steel, Polished, Chevy, Ford, Set of 16

Part Number: ARP-400-1102

4.67 out of 5 stars ( 51 )

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, 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, 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 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, Stainless Steel, Chevy, Ford, Buick, Set of 16

Part Number: MRG-2211G

2.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

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: Dec 22, 2025 if ordered today

• Drop Ship
• Special Order

Header Flanges, No Stubs, Stainless, 0.375 in. Thick, 2.250 in. Port, Each

Part Number: KOK-7041S

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 5, 2026 if ordered today

• Special Order

Header Bolts 3/8 - 16 3/4", Grade 5 Black Oxide Finish With Hex and Socket Head

Part Number: CGT-CF1009

Not Yet Reviewed

Estimated Ship Date: Feb 5, 2026 if ordered today

• Special Order