1978 Engine Blocks & Accessories Engines & Components - Free Shipping on Orders Over $109 at Summit Racing

Dorman Expansion Plugs 565-023

Freeze Plugs, Brass, 1.250 in. Diameter, Buick, Cadillac, Chevy, GMC, Pontiac, Dodge, Ford, Set of 10

Part Number: RNB-565-023

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Philadelphia Racing Products AN Block Adapters PRP-6853

Philadelphia Racing Products AN Block Adapters PRP-6853

AN Block Adapters, -16 AN Adapters, Black Anodized, Chevy, Small Block, Kit

Part Number: PGP-PRP-6853

Not Yet Reviewed

Estimated Ship Date: Feb 25, 2026 if ordered today

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Estimated Ship Date: Feb 25, 2026 if ordered today

Ford Performance Parts Plug and Dowel Kits M-6026-ZBLOCK

Plug and Dowel Kit, Steel, Ford, Z Block, Kit

Part Number: FMS-M6026ZBLOCK

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

World Products Main Stud Kits WPI701432

Main Studs, 4-Bolt Main, Man O'War, Billet Main Caps, Ford, Small Block Windsor, Kit

Part Number: WRL-701432

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Engine Works Cylinder Head Dowel Pins 12233

Cylinder Head Dowel Pins, Chevrolet, Big Block, Set of 4

Part Number: EW1-12233

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Pioneer Automotive Engine Expansion Plugs PE-140-BR

EXP PLUG KIT

Part Number: PIO-PE-140-BR

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Crown Automotive Engine Block Coolant Plugs J3178449

Engine Expansion Plug, Steel, 1.00 in. Diameter, Dodge, Jeep, Each

Part Number: CWA-J3178449

Not Yet Reviewed

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

Crown Automotive Engine Block Coolant Plugs J3144641

Camshaft Expansion Plug, Steel, 1.50 in. Diameter, Jeep, 5.0L, 5.9L, Each

Part Number: CWA-J3144641

Not Yet Reviewed

Estimated Ship Date: May 7, 2026 if ordered today

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Estimated Ship Date: May 7, 2026 if ordered today

PRW Billet Steel Main Girdles 9030201

MAIN GIRDLE, BILLET STEEL, FORD 289-302, Does Not incl Studs or Fasteners

Part Number: PQX-9030201

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

ARP Main Stud Kits 234-5605

Main Studs, 4-Bolt Splayed Main, with Windage Tray, Chevy, 400, Small Block, Kit

Part Number: ARP-234-5605

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Milodon Main Stud Kits 81135

Main Studs, Straight 4-Bolt Main, Chevy, Big Block, Kit

Part Number: MIL-81135

Not Yet Reviewed

Estimated Ship Date: May 14, 2026 if ordered today

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Estimated Ship Date: May 14, 2026 if ordered today

Engine Works Cylinder Head Dowel Pins 12225

Cylinder Head Dowel Pins, Chevrolet, Small Block, Set of 4

Part Number: EW1-12225

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Dorman Expansion Plugs 555-009

Freeze Plugs, Steel, 19/32 in. Diameter, 0.280 in. Height, AMC, Buick, Chevy, GMC, Oldsmobile, Pontiac

Part Number: RNB-555-009

Not Yet Reviewed

Estimated Ship Date: Mar 6, 2026 if ordered today

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Estimated Ship Date: Mar 6, 2026 if ordered today

Engine Works Small Block Rear Main Seal Adapters 350ERMSA

Seal Adapter, Billet Aluminum, 1 to 2-Piece Style, Chevy, Small Block Gen I, Kit

Part Number: EW1-350ERMSA

Not Yet Reviewed

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

Dart Main Bolts 66733750

Main Bolt, 4-Bolt Main, Standard Hex Head, 1/2 in. Thread, 3.750 in. UHL, Each

Part Number: DRT-66733750

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Milodon Main Stud Kits 81223

Main Studs, 2-Bolt, Pontiac 326-455, with Windage Tray, Kit

Part Number: MIL-81223

2.0 out of 5 stars ( 1 )

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Pioneer Automotive Engine Expansion Plugs PE-109-B

BR EXP PLUG KIT

Part Number: PIO-PE-109-B

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Melling Engine Expansion Plug Kits MPE-125R

Freeze Plug Kits Bagged- Steel

Part Number: MEL-MPE-125R

Not Yet Reviewed

Estimated Ship Date: Mar 12, 2026 if ordered today

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Estimated Ship Date: Mar 12, 2026 if ordered today

ARP Main Stud Kits 154-5608

Main Studs, Chromoly, 4-Bolt Main, Ford, Small Block, 302W Dart Iron Eagle Block, Kit

Part Number: ARP-154-5608

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Pioneer Automotive Engine Expansion Plugs PE-108

EXP PLUG KIT

Part Number: PIO-PE-108

Not Yet Reviewed

Estimated Ship Date: Mar 3, 2026 if ordered today

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Estimated Ship Date: Mar 3, 2026 if ordered today

Stef's Lifter Valley Screen Kits 67090

LIFTER VALLEY SCREEN KITS

Part Number: STF-67090

3.0 out of 5 stars ( 1 )

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Brodix Cylinder Heads Block Parts Kits SKBLOCKBBCI

INSTALLATION KIT

Part Number: BRO-SKBLOCKBBCI

Not Yet Reviewed

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Milodon Main Stud Kits 81115

Main Studs, Straight 4-Bolt Main, Chevy, 350, 400, Kit

Part Number: MIL-81115

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 14, 2026 if ordered today

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Estimated Ship Date: May 14, 2026 if ordered today

Dorman Engine Expansion Plugs for 1978 D400, D450 - 567-014

Engine Expansion Plugs, Brass/Steel, Chrysler, Dodge, Plymouth, Kit

Part Number: RNB-567-014

1.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/16/2026 if shipped by air

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Estimated Ship Date: Monday 2/16/2026 if shipped by air

ARP Main Stud Kits 254-5601

Main Studs, 4-Bolt Main, Ford, R-Block, Ford, 302, R-Block, Kit

Part Number: ARP-254-5601

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today