1978 Engine Blocks & Accessories Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Dorman Expansion Plugs 555-004

Freeze Plugs, Steel, 29/64 in. Diameter, Steel, Shallow Cup, Ford, Jeep, Set of 10

Part Number: RNB-555-004

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Dorman Expansion Plugs 02651

Freeze Plugs, Steel, Chrysler, Dodge, Plymouth, 318, 360, Kit

Part Number: RNB-02651

5.0 out of 5 stars ( 1 )

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PRW Billet Steel Main Caps 1738901

Main Caps, Billet Steel, 4-Bolt Conversion or Replacement, Straight, 326-400 cid, V8, Dowel Pinned, Drill Guide, Small Journal, Pontiac, Set of 3

Part Number: PQX-1738901

Not Yet Reviewed

Estimated Ship Date: Feb 24, 2026 if ordered today

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Estimated Ship Date: Feb 24, 2026 if ordered today

Melling Engine Expansion Plug Kits MPE-105BR

Melling Engine Expansion Plug Kits MPE-105BR

Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-105BR

2.0 out of 5 stars ( 1 )

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Dorman Expansion Plugs 565-017

Freeze Plugs, Brass, 1.000 in. Diameter, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Jaguar, Set of 10

Part Number: RNB-565-017

5.0 out of 5 stars ( 1 )

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Philadelphia Racing Products AN Block Adapters PRP-6861

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

Part Number: PGP-PRP-6861

Not Yet Reviewed

Estimated Ship Date: Jan 16, 2026 if ordered today

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Estimated Ship Date: Jan 16, 2026 if ordered today

PRW Main Cap Stud Kits 1000215

Main Cap Fasteners, Main Cap Girdle Stud Kits, 2-bolt, Stud Style, Hex Head, Nuts, Washers, Ford, Big Block FE, Big Block 385 Series, Kit

Part Number: PQX-1000215

3.0 out of 5 stars ( 2 )

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Dorman Expansion Plugs 555-084

Engine Expansion Plugs, Steel, Ford, Mercury, Set of 10

Part Number: RNB-555-084

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PRW Main Girdle Stud Kits 1000203

CHEV 350 Stud Kit, Main Girdle, , Includes 10ea, 1/2" Longer Studs, 7/16" -14/20 x 5.00" Studs, PRW Fasteners & Hardware.

Part Number: PQX-1000203

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

Melling Engine Expansion Plug Kits MPE-101R

Freeze Plug Kits Bagged- Steel

Part Number: MEL-MPE-101R

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Dorman Expansion Plugs 557-017

Freeze Plugs, Steel, AMC, Jeep, International, Set of 7

Part Number: RNB-557-017

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: Mar 24, 2026 if ordered today

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Estimated Ship Date: Mar 24, 2026 if ordered today

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ARP High Performance Series Main Bolts 134-5202

4.75 out of 5 stars ( 36 )

Estimated Ship Date: Tomorrow

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Dorman Expansion Plugs 555-104

Expansion Plugs, Steel, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Isuzu, Jeep, Set of 10

Part Number: RNB-555-104

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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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: Feb 24, 2026 if ordered today

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Estimated Ship Date: Feb 24, 2026 if ordered today

Dorman Expansion Plugs 555-003

Freeze Plugs, Steel, 0.438 in. Diameter, Chevy, Chrysler, Dodge, Eagle, Ford, GMC, Jeep, Mercury, Set of 10

Part Number: RNB-555-003

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Dorman Expansion Plugs 555-097

Expansion Plugs, Steel, 25mm Diameter, Set of 10

Part Number: RNB-555-097

Not Yet Reviewed

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Pioneer Performance Freeze Plugs 830001

Freeze Plug Kit, Brass, Chevy, Small Block, 267-350, Kit

Part Number: PIO-830001

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

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Philadelphia Racing Products AN Block Adapters PRP-6862

AN Block Adapters, -12 AN Adapters, Black Anodized, Chevy, Big Block, Kit

Part Number: PGP-PRP-6862

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

Dorman Expansion Plugs 555-077

Expansion Plugs, Steel, Diameter 1.513 in., Various, Each

Part Number: RNB-555-077

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Dorman Expansion Plugs 550-007

Engine Expansion Plugs, Steel, 0.750 in. Diameter, 0.750 in. Height, International, Set of 10

Part Number: RNB-550-007

Not Yet Reviewed

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PRW Main Cap Stud Kits 1035022

Main Studs, 8740 Chromoly, 200,000 Psi Tensile Strength, Large Journal, 2-Bolt Main, Chevy, Small Block, Kit

Part Number: PQX-1035022

Not Yet Reviewed

Estimated Ship Date: Feb 27, 2026 if ordered today

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Estimated Ship Date: Feb 27, 2026 if ordered today

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Summit Racing™ Main Stud Kits SUM-910205

2.75 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Trick Flow® Deck Plug Kits TFS-51600750

Deck Plugs, Steel, 3/4 in. NPT, Trick Flow®, Ford Heads, Pair

Part Number: TFS-51600750

Not Yet Reviewed

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Dart Main Bolts 66722687

Main Cap Fastener, Bolt, Little M Sportsman, Chevy, Each

Part Number: DRT-66722687

Not Yet Reviewed

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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: Feb 27, 2026 if ordered today

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Estimated Ship Date: Feb 27, 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 )

Estimated Ship Date: Tomorrow

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