1973 Engine Blocks & Accessories Engines & Components - Free Shipping on Orders Over $109 at Summit Racing

PRW Billet Steel Main Caps 1745501

Main Caps, Billet Steel, 4-Bolt Conversion or Replacement, Straight, 421-455 cid, V8, Dowel Pinned, Drill Guide, Large Journal, Pontiac, Set of 3

Part Number: PQX-1745501

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Melling Engine Expansion Plug Kits MPE-107R

Melling Engine Expansion Plug Kits MPE-107R

Freeze Plug Kits Bagged- Steel

Part Number: MEL-MPE-107R

Not Yet Reviewed

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ARP Main Stud Kits 135-5507

Main Studs, 2-Bolt Main, Cadillac, 472, 500, Kit

Part Number: ARP-135-5507

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 7, 2026 if ordered today

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Estimated Ship Date: Apr 7, 2026 if ordered today

Pioneer Performance Freeze Plugs PE-108-BR

Freeze Plugs, Brass, Ford, 289, 302, 351W, Kit

Part Number: PIO-PE108BR

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Mar 24, 2026 if ordered today

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Estimated Ship Date: Mar 24, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK17B

Engine Expansion Plug Kit 64-90 AMC/AMC/JEP 3.3L/3.8L/4.0L/4.2L

Part Number: EGN-PK17B

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Silver Sport Transmission Cylinder Head Dowel Pins BHJ-01021

Offset Dowel Pins AMC Jeep .021

Part Number: IST-BHJ-01021

Not Yet Reviewed

Estimated Ship Date: Apr 8, 2026 if ordered today

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Estimated Ship Date: Apr 8, 2026 if ordered today

Mopar Replacement Engine Block Freeze Plugs J3105394

Expansion Plug, Engine Oil Galley Plug, Steel, 2.00 in. Diameter, Jeep, Each

Part Number: MOP-J3105394

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ARP Main Stud Kits 234-5503

Main Studs, 2-Bolt Main, Chevy, Small Block, Large Journal, with Straps, Kit

Part Number: ARP-234-5503

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

ARP High Performance Series Main Bolts 135-5202

Main Bolts, High Performance Series, Hex Head, Chromoly, Black Oxide, 4-Bolt Main, Chevy, Merlin II/III Iron Big Block, Kit

Part Number: ARP-135-5202

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

Dorman Expansion Plugs 555-101

Engine Expansion Plugs, Steel, 20mm, Ford, Infiniti, Mazda, Nissan, Toyota, Set of 10

Part Number: RNB-555-101

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Engine Works Cylinder Head Dowel Pins 12225

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

Part Number: EW1-12225

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Engine Works Bellhousing Dowel Pins 453658

Bellhousing Dowel Pins, 1.190 in. Length, 0.620 in. Diameter, SBC, BBC, Buick, Chevy, Oldsmobile, Pontiac, GMC, Pair

Part Number: EW1-453658

Not Yet Reviewed

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Crown Automotive Engine Block Coolant Plugs J3172313

Camshaft Expansion Plug, Steel, 2.141 in. Diameter, Dodge, Jeep, Each

Part Number: CWA-J3172313

Not Yet Reviewed

Estimated Ship Date: May 28, 2026 if ordered today

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Estimated Ship Date: May 28, 2026 if ordered today

Philadelphia Racing Products AN Block Adapters PRP-6863

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

Part Number: PGP-PRP-6863

Not Yet Reviewed

Estimated Ship Date: Mar 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today

PRW Main Girdle Stud Kits 1000202

FORD 302 Main Girdle Stud Kit, 4135 ChromolyPRW Steel Studs, Includes 10ea 1/2" Longer Studs, 7/16"-14/20 x 4.80" Studs, Nuts & Washers.

Part Number: PQX-1000202

Not Yet Reviewed

Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

Dorman Expansion Plugs 567-011

Expansion Plugs, Brass, Ford, Mercury, Kit

Part Number: RNB-567-011

Not Yet Reviewed

Estimated Ship Date: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

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: Mar 26, 2026 if ordered today

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Estimated Ship Date: Mar 26, 2026 if ordered today

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 24, 2026 if ordered today

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Estimated Ship Date: Mar 24, 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: Apr 3, 2026 if ordered today

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Estimated Ship Date: Apr 3, 2026 if ordered today

Dorman Expansion Plugs 02663

Engine Expansion Plugs, Pipe Plugs, Ford, Kit

Part Number: RNB-02663

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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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

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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 28, 2026 if ordered today

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Estimated Ship Date: May 28, 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 28, 2026 if ordered today

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Estimated Ship Date: May 28, 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: Apr 2, 2026 if ordered today

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Estimated Ship Date: Apr 2, 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 30, 2026 if ordered today

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Estimated Ship Date: Mar 30, 2026 if ordered today