1968 CHEVROLET Engine Blocks & Accessories Engines & Components - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $125 at Summit Racing

Melling Freeze Plugs MPE-100R

Melling Freeze Plugs MPE-100R

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: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

ARP High Performance Series Main Bolts 134-5002

Main Bolts, High Performance Series, 2-Bolt Main, Small Journal, Chevy, Small Block, Kit

Part Number: ARP-134-5002

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Pioneer Performance Freeze Plugs PE-100-B

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

Part Number: PIO-PE-100-B

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Mr. Gasket Freeze Plug Kits 6481

Freeze Plug, Brass, Small Block, Chevy, Kit

Part Number: MRG-6481

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Pioneer Cylinder Head Dowel Pins PG-225-50

Cylinder Head Dowel Pins, Chevy, Small Block, Set of 50

Part Number: PIO-PG-225-50

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Allstar Performance Cylinder Head Dowel Pins ALL87020

Cylinder Head Dowel Pins, Chevrolet, Small Block. Set of 4

Part Number: AAF-ALL87020

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

PRW Billet Steel Main Caps 1745401

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

Part Number: PQX-1745401

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

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

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

ARP Main Stud Kits 134-5402

Main Studs, 2-Bolt, Small Journal, Chevy, Small Block, Kit

Part Number: ARP-134-5402

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Dura-Bond Engine Hardware Finishing Kits FKC-1HP

Engine Hardware Kits, Engine Hardware Finishing Kits, Cylinder Head Dowels, Camshaft Bolts, Oil Pump Dowel, Chevy, Small Block, High Performance, Kit

Part Number: DUR-FKC-1HP

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Summit Racing™ Main Stud Kits SUM-910204

Main Studs, 4-bolt Style, 180,000 psi Yield Strength, Washers, Nuts, Chevy, Small Block, Kit

Part Number: SUM-910204

4.4 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

ARP Main Stud Kits 234-5602

Main Studs, 4-Bolt Main, Large Journal with Splayed Cap Bolts, Chevy, Small Block, Kit

Part Number: ARP-234-5602

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

ARP Main Stud Kits 134-5501

Main Studs, 2-Bolt Main, Small Journal, Chevy, Small Block, Kit

Part Number: ARP-134-5501

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Milodon Freeze Plug Kits 34033

Freeze Plug Kit, Brass, Chevy, Big Block, 396-454, Kit

Part Number: MIL-34033

2.67 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Summit Racing™ Main Bolt Kits SUM-910202

Main Bolts, 2-bolt Style, 12-point, 180,000 psi Yield Strength, Washers, Chevy, Small Block, Kit

Part Number: SUM-910202

3.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Pioneer Cylinder Head Dowel Pins PG-233-100

Cylinder Head Dowel Pins, Chevy, Big Block, Set of 100

Part Number: PIO-PG-233-100

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Pioneer Performance Freeze Plugs PE-102-B

Freeze Plugs, Brass, Big Block Chevy, Kit

Part Number: PIO-PE102B

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Pioneer Bellhousing Dowel Pins 839032

Bellhousing Dowel Pins, .625 in. Diameter, Buick, Chevrolet, Pair

Part Number: PIO-839032

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Dart Timing Cover Dowel Pins 32910000

Dowel Pin, Timing Cover, Chevy, Small Block/Little M/Sportsman, Each

Part Number: DRT-32910000

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Summit Racing™ Extreme Duty Main Cap Bolts SUM-910202-PRO

Main Bolts, Extreme Duty, 2-bolt Style, 6-point, Premium Quality, 190,000 psi Yield Strength, Washers, Chevy, Small Block, Kit

Part Number: SUM-910202-PRO

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

PRW Billet Steel Main Caps 1735003

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

Part Number: PQX-1735003

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Dura-Bond Bellhousing Dowel Pins AD-009-P

Dowel Pin, Bellhousing Alignment, Chevy, Pontiac, Each

Part Number: DUR-AD-009-P

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

PRW Billet Steel Main Caps 1735001

Main Caps, Billet Steel, Chevy 305/350, 1967-1986, 4 Bolt Replacement Style, Sold as a Set of 3

Part Number: PQX-1735001

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

ACDelco Cylinder Head Pins 00585927

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: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

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

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air