1966 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 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: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Dorman Expansion Plugs 555-115

Engine Expansion Plugs, Steel, 0.375 in. Diameter, 0.150 in. Height, Dodge, Ford, Mercury, Set of 10

Part Number: RNB-555-115

5.0 out of 5 stars ( 6 )

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Mr. Gasket Cylinder Head Dowel Pins 4377

Cylinder Head Dowel Pins, 0.638 in. Outside Diameter, .503 in. Height, Chevy, Big Block, Pair

Part Number: MRG-4377

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Summit Racing™ Extreme Duty Main Cap Bolts SUM-910203-PRO

Main Bolts, Extreme Duty, 4-bolt Style, 6-point, Premium Quality, 190,000 psi Yield Strength, Washers, Chevy, Small Block, Kit

Part Number: SUM-910203-PRO

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Dorman Expansion Plugs 555-028

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 )

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Proform Freeze Plug Kits 66560

Proform Freeze Plug Kits 66560

Freeze Plugs, Brass, Pontiac V8, Kit

Part Number: PRO-66560

3.67 out of 5 stars ( 3 )

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Mr. Gasket Cylinder Head Dowel Pins 4375

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

Part Number: MRG-4375

3.75 out of 5 stars ( 4 )

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Moroso Offset Cylinder Head Dowels 37900

Cylinder Head Dowel Pins, Offset 0.030 in., Chevy Big Block, Chrysler Big Block, Set of 4

Part Number: MOR-37900

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Dorman Expansion Plugs 555-007

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 )

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Philadelphia Racing Products AN Block Adapters PRP-6852

AN Block Adapters, -12 AN Adapters, Black Anodized, Chevy, Small Block, Kit

Part Number: PGP-PRP-6852

Not Yet Reviewed

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Proform Freeze Plug Kits 66553

Freeze Plugs, Brass, Ford, Small Block, 289-302-351W, Kit

Part Number: PRO-66553

3.5 out of 5 stars ( 2 )

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Dorman Expansion Plugs 555-034

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

Part Number: RNB-555-034

Not Yet Reviewed

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PRW Billet Steel Main Caps 1745402

Main Caps, Billet Steel, 4-Bolt, Straight, Chevy, Big Block, Set of 3

Part Number: PQX-1745402

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Pioneer Performance Freeze Plugs PE-100

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

Part Number: PIO-PE-100

Not Yet Reviewed

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Melling Engine Expansion Plug Kits MPE-110BR

Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-110BR

Not Yet Reviewed

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Dorman Expansion Plugs 555-054

Freeze Plugs, Steel, 2.375 in. Diameter, Ford, Mercury, Set of 10

Part Number: RNB-555-054

Not Yet Reviewed

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Dorman Expansion Plugs 555-024

Engine Expansion Plugs, Steel, 1.250 in. Diameter, 0.300 in. Height, Cadillac, Chevy, Chrysler, Set of 10

Part Number: RNB-555-024

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Proform Freeze Plug Kits 66554

Freeze Plugs, Brass, Ford, Big Block FE, Kit

Part Number: PRO-66554

3.0 out of 5 stars ( 4 )

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Dorman Expansion Plugs for 1971-1987 WAGONEER, 1987-2003 WRANGLER - 567-017

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

Part Number: RNB-567-017

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Pioneer Performance Freeze Plugs 830006

Freeze Plug Kit, Brass, Ford, Mercury, V8, Kit

Part Number: PIO-830006

5.0 out of 5 stars ( 3 )

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ARP High Performance Series Main Bolts 154-5201

Main Bolts, High Performance Series, 4-Bolt Main, Ford, Small Block, 221-302, Kit

Part Number: ARP-154-5201

2.0 out of 5 stars ( 1 )

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ARP Main Stud Kits 206-5401

Main Studs, 2-Bolt Main, Austin, MG, Morris, Triumph, Kit

Part Number: ARP-206-5401

5.0 out of 5 stars ( 1 )

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Melling Freeze Plugs MPE-113R

Engine Expansion Plugs, Freeze Plugs, Steel, Camshaft Plug and Oil Galley Plugs, Chrysler, Dodge, Jeep, Plymouth, Kit

Part Number: MEL-MPE-113R

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Dorman Expansion Plugs 555-030

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: Tomorrow

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Moroso Deck Plug Kits 37800

Deck Plug Kit, Steel, Black Oxide, 3/4 in. NPT, Chevy, Small Block/90 Degree V6, Set of 6

Part Number: MOR-37800

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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