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

Philadelphia Racing Products AN Block Adapters PRP-6850

Philadelphia Racing Products AN Block Adapters PRP-6850

AN Block Adapters, -12 AN Adapters, Clear Anodized, Chevy, Small Block, Kit

Part Number: PGP-PRP-6850

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 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

Pioneer Automotive Main Cap Fasteners 855200

Main Bolt Kit

Part Number: PIO-855200

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 Performance Freeze Plugs 830002

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

Part Number: PIO-830002

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

Dorman Expansion Plugs 565-093

Brass Cup Expansion, Plug, 35.21mm Outside Diameter, Each

Part Number: RNB-565-093

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 Performance Freeze Plugs 830004

Freeze Plug Kit, Brass, Ford, Kit

Part Number: PIO-830004

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Pioneer Automotive Engine Expansion Plugs PE-105-B

BR EXP PLUG KIT

Part Number: PIO-PE-105-B

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Dorman Expansion Plugs 565-016

Expansion Plugs, Brass, Diameter 0.947 in., Buick, Oldsmobile, Pontiac, Each

Part Number: RNB-565-016

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Dorman Expansion Plugs 02653

Expansion Plugs, Steel, Ford, Lincoln, Mercury, Kit

Part Number: RNB-02653

Not Yet Reviewed

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Milodon Main Stud Kits 81137

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

Part Number: MIL-81137

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Milodon Main Stud Kits 81165

Main Studs, 2-Bolt, Ford, 351C, 351W, Kit

Part Number: MIL-81165

Not Yet Reviewed

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Engine Works Cylinder Head Dowel Pins 12225-20

Cylinder Head Dowel Pins, Chevrolet, Small Block, Set of 20

Part Number: EW1-12225-20

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EMPI Magnesium Engine Cases 98-0431-B

Engine Case, Magnesium Alloy, OEM, Volkswagen, Each

Part Number: VWP-98-0431-B

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Engine Works Freeze Plug Sets 60478

Engine Expansion Plugs, Camshaft Plug Only, Steel, SBC, V8, 265-350 CID, Chevy, Small Block, Set of 10

Part Number: EW1-60478

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Isky Keyway Lifter Bore Bushings KLB936

Lifter Bushing, 1.062 in. O.D., 0.936 in. I.D., 1.990 in. Length, Bronze, Keyway, Chevy, Set of 16

Part Number: ISK-KLB936

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ARP Main Stud Kits 234-5604

Main Studs, 4-Bolt Main, Chevy Small Block, Large Journal, with Straps & Splayed Caps, Kit

Part Number: ARP-234-5604

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Dorman Expansion Plugs 555-105

Expansion Plugs, Steel, Diameter 1.792 in., Ford, Mazda, Each

Part Number: RNB-555-105

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

Milodon Main Stud Kits 81216

Main Studs, 2-Bolt, Oldsmobile, 307, 350, 403, Kit

Part Number: MIL-81216

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

Need It Sooner? We recommend these similar substitute parts:

ARP Main Stud Kits 184-5401

5 out of 5 stars ( 2 )

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PRW Billet Steel Main Girdles 9040001

MAIN GIRDLE, BILLET STEEL, CHEV 400, Does Not incl Studs or Fasteners

Part Number: PQX-9040001

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 81130

Main Studs, Straight 4-Bolt Main, Chevy, Large Journal, Small Block, with Milodon Caps, Kit

Part Number: MIL-81130

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Milodon Main Bolt Kits 81140

Main Cap Fasteners, Milodon Straight Bolt Caps, 8740 Chrome Steel Studs, 4130 Heat Treated Steel Washers and Nuts, Chevrolet, Big Block, Kit

Part Number: MIL-81140

Not Yet Reviewed

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

World Products Main Caps WPI703370C

Main Caps, Merlin III, 3-Center, Angled Outer Bolts, 4-Bolt, Chevrolet, Big Block, Each

Part Number: WRL-703370C

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

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Estimated Ship Date: Mar 13, 2026 if ordered today

World Products Man O'War Bare Blocks 087072

Engines, Bare Blocks, Man O'War Bare Block, 351 Cleveland Mains, 9.500 in. Deck Height, 4-bolt Main Style, Ford, 5.0L, 5.8L, Small Block Windsor, Each

Part Number: WRL-087072

Not Yet Reviewed

Estimated Ship Date: Mar 13, 2026 if ordered today

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Estimated Ship Date: Mar 13, 2026 if ordered today

PRW Main Girdle Stud Kits 1000207

CHEV 400, Stud Kit, Main Girdle, Includes 10ea, 1/2" Longer Studs, 7/16" -14/20 x 5.00" Studs, PRW Fasteners & Hardware.

Part Number: PQX-1000207

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

PRW Billet Steel Main Girdles 9035001

MAIN GIRDLE, BILLET STEEL, CHEV 350, 2pc Rear Seal, Does Not incl Studs or Fasteners

Part Number: PQX-9035001

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today