1966 GMC Engine Blocks & Accessories

Cylinder Head Pin, 0.3094 in. O.D., 0.563 in. Height, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: ADO-585927

4.22 out of 5 stars ( 9 )

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

Engine Expansion Plugs, Steel, 0.540 in. O.D., 0.180 in. Height, Buick, Chevy, Ford, GMC, Mercury, Set of 10

Part Number: RNB-555-007

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

Steel Cup Expansion Plug 15/16 In., Height 0.380

Part Number: RNB-555-016

Not Yet Reviewed

Estimated Ship Date: Today

Freeze Plug Kit, Brass, Chevy, 153, L4, 194, 230, 250, 292 L6, Kit

Part Number: PIO-PE-104-B

4.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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

Part Number: RNB-555-034

Not Yet Reviewed

Estimated Ship Date: Today

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 )

Estimated Ship Date: Today

Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-104BR

Not Yet Reviewed

Estimated Ship Date: Today

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

Part Number: RNB-550-034

Not Yet Reviewed

Estimated Ship Date: May 13, 2026 if ordered today

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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: May 18, 2026 if ordered today

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Freeze Plug Kits Bagged- Steel

Part Number: MEL-MPE-104R

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Freeze Plug Kits Bagged- Steel

Part Number: MEL-MPE-121R

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-121BR

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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EXP PLUG KIT

Part Number: PIO-PE-121

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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EXP PLUG KIT

Part Number: PIO-PE-104

Not Yet Reviewed

Estimated Ship Date: May 12, 2026 if ordered today

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BR EXP PLUG KIT

Part Number: PIO-PE-104-BR

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 12, 2026 if ordered today

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