CHEVROLET Chevy big block Mark IV Engine Blocks & Accessories Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Pioneer Cylinder Head Dowel Pins PG-233-100

Cylinder Head Dowel Pins, Chevy, Big Block, Set of 100

Part Number: PIO-PG-233-100

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Dorman Expansion Plugs 555-028

Engine Expansion Plug, Steel, AMC, Buick, Cadillac, Chevy, Ford, GMC, Jeep, Mercury, Oldsmobile, Set of 10

Part Number: RNB-555-028

4.5 out of 5 stars ( 2 )

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Dura-Bond Engine Hardware Finishing Kits FKC-3

Dura-Bond Engine Hardware Finishing Kits FKC-3

Engine Hardware, Cylinder Head Dowels, Woodruff Keys, Oil Pump Dowel, Cam Bolts, Chevy, 454, Kit

Part Number: DUR-FKC-3

5.0 out of 5 stars ( 2 )

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COMP Cams Engine Finishing Kits 234

Engine Finishing Hardware, Head Dowels, Camshaft Bolts, Crank Key, Oil Pump Dowel, Chevy, Big Block, Kit

Part Number: CCA-234

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World Products PBM Performance Block Kits WPIPBMBKBBCIV

Engine Hardware Kit, Block Kit, Merlin IV, BBC, Kit

Part Number: WRL-PBMBKBBCIV

2.5 out of 5 stars ( 2 )

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Dorman Expansion Plugs 555-034

Engine Expansion Plugs, Steel, Chevy, GMC, Set of 10

Part Number: RNB-555-034

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Proform Freeze Plug Kits 66552

Freeze Plugs, Brass, Chevy, Big Block, Kit

Part Number: PRO-66552

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Mr. Gasket Cylinder Head Dowel Pins 4377

Cylinder Head Dowel Pins, 0.638 in. Outside Diameter, .503 in. Height, Chevy, Big Block, Pair

Part Number: MRG-4377

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Moroso Offset Cylinder Head Dowels 37900

Cylinder Head Dowel Pins, Offset 0.030 in., Chevy Big Block, Chrysler Big Block, Set of 4

Part Number: MOR-37900

3.0 out of 5 stars ( 1 )

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Mr. Gasket Cylinder Head Dowel Pins 4375

Cylinder Head Dowels, .310 in. Outside Diameter, .562 in. Height, Chevy/Mopar, Pair

Part Number: MRG-4375

3.75 out of 5 stars ( 4 )

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ARP Main Stud Kits 135-5801

Main Studs, 4-Bolt Main, High Performance, 12-Point, Chevy, Big Block, World/Merlin II and III Blocks, Kit

Part Number: ARP-135-5801

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PRW Billet Steel Main Caps 1745402

Main Caps, Billet Steel, 4-Bolt, Straight, Chevy, Big Block, Set of 3

Part Number: PQX-1745402

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

Pioneer Performance Freeze Plugs 830017

Freeze Plug Kit, Brass, Chevy, Small Block, Kit

Part Number: PIO-830017

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Pioneer Performance Freeze Plugs 830019

Freeze Plug Kit, Brass, Chevy, Big Block, Kit

Part Number: PIO-830019

5.0 out of 5 stars ( 2 )

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Dorman Expansion Plugs 555-007

Engine Expansion Plugs, Steel, 0.540 in. O.D., 0.180 in. Height, Buick, Chevy, Ford, GMC, Mercury, Set of 10

Part Number: RNB-555-007

4.67 out of 5 stars ( 3 )

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Dorman Expansion Plugs 555-080

Expansion Plugs, Steel, 2.109 in. Diameter, Set of 10

Part Number: RNB-555-080

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PRW Billet Steel Main Girdles 9045400

MAIN GIRDLE, BILLET STEEL, CHEV 454, incl PRW fasteners & hdwe

Part Number: PQX-9045400

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ARP Main Stud Kits 235-5601

Main Studs, 4-Bolt Main, Dart Big M Block, Chevy, 454, Kit

Part Number: ARP-235-5601

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Dorman Expansion Plugs 555-030

Freeze Plugs, Steel, 1.625 in. Diameter, AMC, Buick, Cadillac, Chevy, GMC, Chrysler, Dodge, Jeep, Set of 10

Part Number: RNB-555-030

4.0 out of 5 stars ( 4 )

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Dorman Expansion Plugs 555-081

Freeze Plugs, Steel, 2.219 in. Closed End Diameter, 2.226 in. Open End Diameter, Chevy, GMC, Set of 10

Part Number: RNB-555-081

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PRW Main Cap Stud Kits 1045442

Main Studs, 8740 Chromoly, 200,000 Psi Tensile Strength, 4-Bolt Main, Chevy, Big Block, Kit

Part Number: PQX-1045442

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

ARP High Performance Series Main Bolts 135-5201

4.25 out of 5 stars ( 6 )

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PRW Billet Steel Main Caps 1745403

Main Caps, Billet Steel, 4-Bolt, Straight, Chevy, Big Block, Set of 4

Part Number: PQX-1745403

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 31, 2026 if ordered today

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Estimated Ship Date: Mar 31, 2026 if ordered today

Dorman Expansion Plugs 555-049

Engine Expansion Plugs, Steel, 2.094 in. O.D., 0.280 in. Depth, Set of 10

Part Number: RNB-555-049

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World Products Merlin IV Engine Blocks 095000

Engine Block, Cast Iron, 4-Bolt Mains, 4.245 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each

Part Number: WRL-095000

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

World Products Merlin IV Engine Blocks 095112

Engines, Bare Block, Cast Iron, Merlin IV BBC, 10.200 in. Deck, 4.595 in. Bore, Splayed Billet Caps, Standard Cam Bearings and Lifters, Each

Part Number: WRL-095112

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 27, 2026 if ordered today

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Estimated Ship Date: Feb 27, 2026 if ordered today