Engine Blocks & Parts | Summit Racing

Howards Cams Extreme Billet Main Caps H454

Howards Cams Extreme Billet Main Caps H454

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

Part Number: HRS-H454

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Melling Freeze Plugs MPE-275BR

Engine Expansion Plugs, Freeze Plugs, Brass, Chevy, GMC, Big Block, Kit

Part Number: MEL-MPE-275BR

4.18 out of 5 stars ( 11 )

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ARP Main Stud Kits 135-5901

Main Studs, 4-Bolt Main, Chevy, Big Block, Gen VII, Kit

Part Number: ARP-135-5901

5.0 out of 5 stars ( 1 )

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ARP Main Stud Kits 135-5606

Main Studs, 4-Bolt Main, Chevy, Big Block, Mark V, 502, Kit

Part Number: ARP-135-5606

5.0 out of 5 stars ( 1 )

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PRW Billet Steel Main Caps 1745401

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

Part Number: PQX-1745401

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Chevrolet Performance Bellhousing Dowel Pins 1453658

Bellhousing, Transmission Dowel Pin, .621 in. Diameter, Straight, 1.188 in. Length, GM, L92/LS, Each

Part Number: NAL-12720455

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Milodon Freeze Plug Kits 34033

Freeze Plug Kit, Brass, Chevy, Big Block, 396-454, Kit

Part Number: MIL-34033

2.67 out of 5 stars ( 3 )

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ACDelco Cylinder Head Pins 12558081

Cylinder Head Locating Dowel Pin, Steel, Chevy, Each

Part Number: ADO-12558081

1.0 out of 5 stars ( 2 )

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ARP Main Stud Kits 235-5606

Main Studs, 4-Bolt Main, with Windage Tray, Chevy, Big Block, Kit

Part Number: ARP-235-5606

5.0 out of 5 stars ( 3 )

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Stef's Rear Main Seal Adapter Kits 7035

Seal Adapter, Billet Aluminum, 1 to 2-Piece, Chevy, 7.4L, Each

Part Number: STF-7035

3.0 out of 5 stars ( 1 )

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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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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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Proform Freeze Plug Kits 66552

Freeze Plugs, Brass, Chevy, Big Block, Kit

Part Number: PRO-66552

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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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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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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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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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PRW Billet Steel Main Caps 1745402

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

Part Number: PQX-1745402

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Estimated Ship Date: Apr 7, 2026 if ordered today

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Estimated Ship Date: Apr 7, 2026 if ordered today

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

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Estimated Ship Date: Apr 7, 2026 if ordered today

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Estimated Ship Date: Apr 7, 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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Dorman Expansion Plugs for 1965-1974 CORVETTE - 555-071

Freeze Plugs, Steel, 2.219 in. Diameter, 0.300 in. Height, Set of 10

Part Number: RNB-555-071

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Melling Engine Expansion Plug Kits MPE-102R

Freeze Plug Kits Bagged- Steel

Part Number: MEL-MPE-102R

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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: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today

PRW Main Girdle Stud Kits 1000209

CHEV 454, Stud Kit, Main Girdle, Includes 10ea, 1/2" Longer Studs, 1/2"-13/20 x 5.313" Studs, PRW Fasteners & Hardware.

Part Number: PQX-1000209

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today

PRW Billet Steel Main Girdles 9045401

Main Cap Girdle, 1045 Billet Steel, No Hardware, for Chevy Big Block 454, Each

Part Number: PQX-9045401

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today