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 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: Jun 2, 2026 if ordered today

...Loading

Estimated Ship Date: Jun 2, 2026 if ordered today

World Products Main Caps WPI703370C

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: May 8, 2026 if ordered today

...Loading

Estimated Ship Date: May 8, 2026 if ordered today

Pioneer Automotive Engine Expansion Plugs PE-186-R

EXP PLUG KIT

Part Number: PIO-PE-186-R

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 20, 2026 if ordered today

Milodon Main Stud Kits 81221

Main Studs, 2-Bolt, Pontiac, 326-455, Kit

Part Number: MIL-81221

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 23, 2026 if ordered today

...Loading

Estimated Ship Date: Jun 23, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

ARP Main Stud Kits 194-5401

4.75 out of 5 stars ( 11 )

Estimated Ship Date: Today

...Loading

Enginetech Engine Expansion Plug Kits PK3

Engine Expansion Plug Kit 65-90 BUI/CHV/GMC/OLD/PON 6.0L/6.5L/6.6L/7.0L/7.4L/L

Part Number: EGN-PK3

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 20, 2026 if ordered today

Melling Engine Expansion Plug Kits for 1976-1983 ACCORD, 1975-1983 CIVIC, 1979-1982 PRELUDE - MPE-153BR

Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-153BR

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 24, 2026 if ordered today

Milodon Main Stud Kits 81138

Main Studs, 2-Bolt Main, Chevy, Big Block, Kit

Part Number: MIL-81138

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2026 if ordered today

...Loading

Estimated Ship Date: Jun 24, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

ARP High Performance Series Main Bolts 135-5002

5 out of 5 stars ( 16 )

Estimated Ship Date: Today

...Loading

Pioneer Automotive Engine Expansion Plugs PE-109

EXP PLUG KIT

Part Number: PIO-PE-109

Not Yet Reviewed

Estimated Ship Date: Apr 15, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 15, 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: May 6, 2026 if ordered today

...Loading

Estimated Ship Date: May 6, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK11

Engine Expansion Plug Kit 58-78 FRD/MER 5.8L/5.9L/6.4L/7.0L

Part Number: EGN-PK11

Not Yet Reviewed

Estimated Ship Date: Apr 23, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 23, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK19B

Engine Expansion Plug Kit 75-95 BUI/CAD/CHV/GMC/OLD/PON 3.0L/3.2L/3.8L/4.1L

Part Number: EGN-PK19B

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 24, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK10B

Engine Expansion Plug Kit 70-82 FRD/LIN/MER 3.9L/4.9L/5.8L/6.6L

Part Number: EGN-PK10B

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 24, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK2

Engine Expansion Plug Kit 70-80 CHV/GMC/OLD/PON 6.6L

Part Number: EGN-PK2

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 24, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK21B

Engine Expansion Plug Kit 68-84 CAD 6.0L/7.0L/7.7L/8.2L

Part Number: EGN-PK21B

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 24, 2026 if ordered today

Enginetech Engine Expansion Plug Kits PK32

Engine Expansion Plug Kit 75-95 TOY 2.2L/2.4L

Part Number: EGN-PK32

Not Yet Reviewed

Estimated Ship Date: Apr 24, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 24, 2026 if ordered today

Silver Sport Transmission Cylinder Head Dowel Pins BHI-00007

Offset Dowel Pins Mazda Rotary .007

Part Number: IST-BHI-00007

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

...Loading

Estimated Ship Date: May 4, 2026 if ordered today

Silver Sport Transmission Cylinder Head Dowel Pins BHI-00021

Offset Dowel Pins Mazda Rotary .021

Part Number: IST-BHI-00021

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 27, 2026 if ordered today

Milodon Main Stud Kits 81215

Main Studs, 2-Bolt, Oldsmobile, 350 Diesel, 400, 425, 455, Kit

Part Number: MIL-81215

Not Yet Reviewed

Estimated Ship Date: Jun 24, 2026 if ordered today

...Loading

Estimated Ship Date: Jun 24, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

ARP High Performance Series Main Bolts 185-5001

5 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Pioneer Automotive Engine Expansion Plugs PE-104-BR

BR EXP PLUG KIT

Part Number: PIO-PE-104-BR

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 15, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 15, 2026 if ordered today

Pioneer Automotive - Engine Expansion Plugs for 1973-1975 MARINA, 1963-1980 MGB - PE-143

EXP PLUG KIT

Part Number: PIO-PE-143

Not Yet Reviewed

Estimated Ship Date: Apr 15, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 15, 2026 if ordered today

Pioneer Automotive - Engine Expansion Plugs for 1975-1987 LAND CRUISER - PE-141

EXP PLUG KIT

Part Number: PIO-PE-141

Not Yet Reviewed

Estimated Ship Date: Apr 15, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 15, 2026 if ordered today

Pioneer Automotive Engine Expansion Plugs PE-140

EXP PLUG KIT

Part Number: PIO-PE-140

Not Yet Reviewed

Estimated Ship Date: Apr 15, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 15, 2026 if ordered today

Pioneer Cylinder Head Dowel Pins PF-485-100

Cylinder Head Dowel Pins, Ford, Lincoln, Mercury, Set of 100

Part Number: PIO-PF-485-100

Not Yet Reviewed

Estimated Ship Date: Apr 15, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 15, 2026 if ordered today

Pioneer Automotive Engine Expansion Plugs PE-124-B

EXP PLUG KIT

Part Number: PIO-PE-124-B

Not Yet Reviewed

Estimated Ship Date: Apr 15, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 15, 2026 if ordered today

Pioneer Automotive Engine Expansion Plugs PE-163-BR

BR EXP PLUG KIT

Part Number: PIO-PE-163-BR

Not Yet Reviewed

Estimated Ship Date: Apr 15, 2026 if ordered today

...Loading

Estimated Ship Date: Apr 15, 2026 if ordered today