1981 GMC Engine Blocks & Accessories

Cylinder Head Dowel Pins, Chevy, GMC, Big Block, Set of 10

Part Number: PIO-PG-233-10

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

Engine Expansion Plugs, Freeze Plugs, Steel, Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Kit

Part Number: MEL-MPE-100R

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

Engine Expansion Plug, Steel, AMC, Buick, Cadillac, Chevy, Ford, GMC, Jeep, Mercury, Oldsmobile, Set of 10

Part Number: RNB-555-028

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

Cylinder Head Dowels, .310 in. Outside Diameter, .562 in. Height, Chevy/Mopar, Pair

Part Number: MRG-4375

3.75 out of 5 stars ( 4 )

Estimated Ship Date: Today

Expansion Plugs, Steel, 2.109 in. Diameter, Set of 10

Part Number: RNB-555-080

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Estimated Ship Date: Today

Freeze Plug Kit, Steel, Chevy, Small Block, Kit

Part Number: PIO-PE-100

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Estimated Ship Date: Today

Freeze Plugs, Steel, 1.625 in. Diameter, AMC, Buick, Cadillac, Chevy, GMC, Chrysler, Dodge, Jeep, Set of 10

Part Number: RNB-555-030

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

Freeze Plugs, Brass, Chevy 283-350, Small Block, Kit

Part Number: PRO-66550

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-137BR

Not Yet Reviewed

Estimated Ship Date: Today

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 )

Estimated Ship Date: Today

Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-104BR

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Estimated Ship Date: Today

Engine Expansion Plugs, Steel, Chevy, GMC, Set of 10

Part Number: RNB-555-034

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Estimated Ship Date: Today

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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Estimated Ship Date: Today

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

Part Number: RNB-557-001

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Engine Expansion Plug Kit 65-90 BUI/CHV/GM/GMC/OLD/PON 4.3L/4.4L/4.6L/4.9L/5.0L/5.7L/6.0L/6.5L/6.6L/7.0L/7.4L/L

Part Number: EGN-PK3B

Not Yet Reviewed

Estimated Ship Date: Nov 30, 2026 if ordered today

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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

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Estimated Ship Date: Nov 30, 2026 if ordered today

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

Part Number: EGN-PK19B

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Estimated Ship Date: Nov 30, 2026 if ordered today

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Freeze Plug Kits Bagged- Steel

Part Number: MEL-MPE-262R

Not Yet Reviewed

Estimated Ship Date: Dec 3, 2026 if ordered today

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Engine Expansion Plug Kit 64-90 BUI/CAD/CHV/GM/GMC/OLD/PON 4.3L/4.4L/4.6L/4.9L/5.0L/5.4L/5.7L/6.6L/7.0L/7.5L

Part Number: EGN-PK25B

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Estimated Ship Date: Nov 30, 2026 if ordered today

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

Part Number: RNB-555-077

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Estimated Ship Date: Today

Expansion Plugs, Steel, Diameter 2.105 in., GM, Set of 10

Part Number: RNB-555-085

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Estimated Ship Date: Today

Engine Expansion Plug Kit 62-89 CHV/GM/GMC 3.2L/3.8L/4.3L/4.8L

Part Number: EGN-PK5B

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Estimated Ship Date: Nov 30, 2026 if ordered today

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Expansion Plugs, Steel, Diameter 1.638 in., Various, Each

Part Number: RNB-555-087

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Estimated Ship Date: Today