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

PRW Billet Steel Main Girdles 9046001

MAIN GIRDLE, BILLET STEEL, FORD 460, Does Not incl Studs or Fasteners

Part Number: PQX-9046001

Not Yet Reviewed

Estimated Ship Date: Jun 2, 2026 if ordered today

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Estimated Ship Date: Jun 2, 2026 if ordered today

Dorman Expansion Plugs for 1978 D400, D450 - 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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Trick Flow® Deck Plug Kits TFS-51600750

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

Part Number: TFS-51600750

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Dorman Expansion Plugs 02663

Engine Expansion Plugs, Pipe Plugs, Ford, Kit

Part Number: RNB-02663

4.5 out of 5 stars ( 2 )

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Melling Performance Cylinder Sleeves CSL197HP

Melling Performance Cylinder Sleeves CSL197HP

Cylinder Sleeve, Cast Iron, 4.250 in. Bore I.D., 0.094 in. Wall Thickness, 7.000 in. Length, Each

Part Number: MEL-CSL197HP

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Pioneer Performance Freeze Plugs PE-100-R

Freeze Plugs, Steel, Chevy, 267, 283, 302, 305, 307, 327, 350, Kit

Part Number: PIO-PE100R

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Apr 15, 2026 if ordered today

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Estimated Ship Date: Apr 15, 2026 if ordered today

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Summit Racing™ Freeze Plugs SUM-G1581

4.75 out of 5 stars ( 50 )

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Dorman Expansion Plugs for 1978 D400, D450 - 557-014

Expansion Plugs, Steel, Chrysler, Dodge, Plymouth, Kit

Part Number: RNB-557-014

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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

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Estimated Ship Date: Jun 1, 2026 if ordered today

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ARP High Performance Series Main Bolts 135-5201

4.25 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Dorman Expansion Plugs 550-034

Engine Expansion Plugs, Steel, 3.00 in. Diameter, Chevy, GMC, Set of 10

Part Number: RNB-550-034

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Estimated Ship Date: Apr 17, 2026 if ordered today

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Estimated Ship Date: Apr 17, 2026 if ordered today

Melling Engine Expansion Plug Kits MPE-117R

Freeze Plug Kits Bagged- Steel

Part Number: MEL-MPE-117R

5.0 out of 5 stars ( 1 )

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Dart Freeze Plugs 32540000

Freeze Plug, Steel, Chevy, Dart SHP, Each

Part Number: DRT-32540000

5.0 out of 5 stars ( 1 )

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PRW Main Girdle Stud Kits 1000205

FORD 351W, Stud Kit, Main Girdle, Includes 10ea, 1/2" Longer Studs, 1/2" - 13/20 x 5.00" Studs, PRW Fasteners & Hardware.

Part Number: PQX-1000205

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Estimated Ship Date: Jun 1, 2026 if ordered today

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Estimated Ship Date: Jun 1, 2026 if ordered today

Dorman Expansion Plugs 555-011

Engine Expansion Plugs, Steel, 0.625 in. O.D., 0.232 in. Height, Buick, Cadillac, Chevy, Jeep, Olds, Set of 10

Part Number: RNB-555-011

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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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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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Dorman Expansion Plugs 557-017

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

Part Number: RNB-557-017

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Dorman Expansion Plugs 555-100

Expansion Plugs, Steel, Diameter 1.199 in., Various, Each

Part Number: RNB-555-100

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Melling Engine Expansion Plug Kits MPE-101BR

Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-101BR

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Estimated Ship Date: Apr 28, 2026 if ordered today

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Estimated Ship Date: Apr 28, 2026 if ordered today

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

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Pioneer Cylinder Head Dowel Pins PF-310-25

Dowel Pin, Hollow, Cylinder Head, Set of 25

Part Number: PIO-PF-310-25

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

Melling Engine Expansion Plug Kits MPE-116BR

Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-116BR

Not Yet Reviewed

Estimated Ship Date: Apr 23, 2026 if ordered today

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Estimated Ship Date: Apr 23, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK1

Engine Expansion Plug Kit 55-02 BUI/CAD/CHV/GMC/OLD/PON 3.3L/3.8L/4.3L/4.4L/4.6L/4.9L/5.0L/5.3L/5.7L

Part Number: EGN-PK1

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 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 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 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: Jun 22, 2026 if ordered today

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Estimated Ship Date: Jun 22, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK14B

Engine Expansion Plug Kit 55-03 CHR/DOD/JEP/PLY 3.7L/4.5L/4.9L/5.2L/5.6L/5.9L

Part Number: EGN-PK14B

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Estimated Ship Date: Apr 24, 2026 if ordered today

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Estimated Ship Date: Apr 24, 2026 if ordered today