BUICK Engine Blocks & Accessories Engines & Components

Enginetech Engine Expansion Plug Kits PK1B

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

Part Number: EGN-PK1B

5.0 out of 5 stars ( 1 )

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Top Street Performance Trussed-Style Engine Valley Covers 81043BK

Engine Valley Cover, Trussed, Billet Aluminum, Black, Hardware Included, Chevy, Each

Part Number: TSN-81043BK

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Estimated Ship Date: Dec 28, 2026 if ordered today

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Estimated Ship Date: Dec 28, 2026 if ordered today

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Top Street Performance Finned Aluminum Engine Valley Covers 81045BK

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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 )

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Pioneer Performance Freeze Plugs PE-100-BR

Freeze Plug Kit, Brass, Chevy, Small Block, Kit

Part Number: PIO-PE100BR

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ACDelco GM Genuine Parts Main Bearing Cap Bolts 24503056

Main Bolt, Flanged Hex, Steel, Buick, Chevy, Oldsmobile, Pontiac, Each

Part Number: ADO-24503056

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Dorman Expansion Plugs for 1950-1952 ROADMASTER, SUPER, 1951-1953 SPECIAL - 555-040

Engine Expansion Plugs, Steel, 1.953 in. Open End Diameter, Buick, 4.3L L8, 5.2L L8, Set of 10

Part Number: RNB-555-040

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Dorman Expansion Plugs 555-025

Freeze Plugs, Steel, Set of 10

Part Number: RNB-555-025

4.0 out of 5 stars ( 1 )

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Top Street Performance Finned Aluminum Engine Valley Covers 81045BK

Engine Valley Cover, Finned, Billet Aluminum, Black, Hardware Included, Chevy, Each

Part Number: TSN-81045BK

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Melling Engine Expansion Plug Kits MPE-124BR

Melling Engine Expansion Plug Kits MPE-124BR

Engine Expansion Plugs, Brass, Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac, Kit

Part Number: MEL-MPE-124BR

1.0 out of 5 stars ( 1 )

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Melling Engine Expansion Plug Kits MPE-119BR

Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-119BR

5.0 out of 5 stars ( 2 )

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Dorman Expansion Plugs 555-049

Engine Expansion Plugs, Steel, 2.094 in. O.D., 0.280 in. Depth, Set of 10

Part Number: RNB-555-049

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Dorman Expansion Plugs 555-027

Engine Expansion Plug, Steel, 1.5 in. Width, 0.570 in. Height, Buick, Chevy, Fiat, GMC, Set of 10

Part Number: RNB-555-027

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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: Dec 29, 2026 if ordered today

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Estimated Ship Date: Dec 29, 2026 if ordered today

ACDelco GM Genuine Parts Main Bearing Cap Bolts 12561388

Main Cap Fasteners, ACDelco GM Genuine Parts Multi-Purpose Bolts, 7/16-14 Threads, Cadillac, Chevy, GMC, Olds, Pontiac, Each

Part Number: ADO-12561388

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Pioneer Performance Freeze Plugs EPC-80-B-10

Freeze Plug Kit, Brass, Pontiac, Kit

Part Number: PIO-EPC-80B-10

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Melling Engine Expansion Plug Kits MPE-104BR

Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-104BR

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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 567-001

Expansion Plugs, Brass, 15 Expansion Plugs, 5 Pipe Plugs, Kit

Part Number: RNB-567-001

4.5 out of 5 stars ( 2 )

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ACDelco GM Genuine Parts Engine Coolant Water Caps 11562126

Engine Expansion Plugs, ACDelco GM Genuine Parts Engine Coolant Water Caps, Stainless Steel, 1.260 Diameter, Each

Part Number: ADO-11562126

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Dorman Expansion Plugs 557-001

Expansion Plugs, Steel, 15 Expansion Plugs, 5 Pipe Plugs, Kit

Part Number: RNB-557-001

5.0 out of 5 stars ( 1 )

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Pioneer Performance Freeze Plugs PE-137-BR

Freeze Plug Kit, Brass, Chevy, Pontiac, Buick, GMC, Oldsmobile, V6, Kit

Part Number: PIO-PE-137-BR

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Dorman Main Cap Bolts 45691

Main Bolts, OE Replacement, GM, Set of 10

Part Number: RNB-45691

Not Yet Reviewed

Estimated Ship Date: Nov 10, 2026 if ordered today

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Estimated Ship Date: Nov 10, 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

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Holley LS Valley Covers 241-367

Lifter Valley Plates, LS Valley, Billet Aluminum, Trussed with Oil Fill, Natural Finish, 10-Bolt Pattern, Chevy, LS, 5.7L, Each

Part Number: HLY-241-367

5.0 out of 5 stars ( 1 )

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Top Street Performance Finned Aluminum Engine Valley Covers 81045P

Engine Valley Cover, Finned, Billet Aluminum, Polished, Hardware Included, Chevy, Each

Part Number: TSN-81045P

Not Yet Reviewed

Estimated Ship Date: Dec 28, 2026 if ordered today

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Estimated Ship Date: Dec 28, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Top Street Performance Trussed-Style Engine Valley Covers 81043C

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