1981 Engine Blocks & Accessories Engines & Components - Free Shipping on Orders Over $109 at Summit Racing

Dorman Expansion Plugs 565-016

Expansion Plugs, Brass, Diameter 0.947 in., Buick, Oldsmobile, Pontiac, Each

Part Number: RNB-565-016

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Engine Works Freeze Plug Sets 60478

Engine Expansion Plugs, Camshaft Plug Only, Steel, SBC, V8, 265-350 CID, Chevy, Small Block, Set of 10

Part Number: EW1-60478

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ARP Main Stud Kits 234-5604

ARP Main Stud Kits 234-5604

Main Studs, 4-Bolt Main, Chevy Small Block, Large Journal, with Straps & Splayed Caps, Kit

Part Number: ARP-234-5604

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Isky Keyway Lifter Bore Bushings KLB936

Lifter Bushing, 1.062 in. O.D., 0.936 in. I.D., 1.990 in. Length, Bronze, Keyway, Chevy, Set of 16

Part Number: ISK-KLB936

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Engine Works Cylinder Head Dowel Pins 12225-20

Cylinder Head Dowel Pins, Chevrolet, Small Block, Set of 20

Part Number: EW1-12225-20

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Milodon Main Stud Kits 81155

Main Cap Fasteners, Two Bolt Caps, 8740 Chrome Steel Studs, 4130 Heat Treated Steel Washers and Nuts, Ford, 302 Windsor, Kit

Part Number: MIL-81155

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Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Milodon Main Stud Kits 81166

Main Studs, 2-Bolt, Ford, 351W, with Windage Tray, Kit

Part Number: MIL-81166

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Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Milodon Main Stud Kits 81218

Main Studs, 2-Bolt, Oldsmobile, 307, 350, 403, for use with Windage Tray, Kit

Part Number: MIL-81218

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Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Milodon Main Stud Kits 81128

Main Studs, 4-Bolt Main, Chevy, Large Journal, Small Block, with Milodon Caps, Kit

Part Number: MIL-81128

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Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Milodon Main Stud Kits 81131

Main Studs, Straight 4-Bolt Main, Chevy, Large Journal, Small Block, with Milodon Caps, Windage Tray, Kit

Part Number: MIL-81131

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Estimated Ship Date: May 5, 2026 if ordered today

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Milodon Main Stud Kits 81133

Main Studs, 4-Bolt Main, Chevy, Big Block, with Milodon Caps, Kit

Part Number: MIL-81133

4.0 out of 5 stars ( 2 )

Estimated Ship Date: May 5, 2026 if ordered today

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Estimated Ship Date: May 5, 2026 if ordered today

Milodon Main Stud Kits 81130

Main Studs, Straight 4-Bolt Main, Chevy, Large Journal, Small Block, with Milodon Caps, Kit

Part Number: MIL-81130

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Estimated Ship Date: May 5, 2026 if ordered today

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Milodon Main Bolt Kits 81140

Main Cap Fasteners, Milodon Straight Bolt Caps, 8740 Chrome Steel Studs, 4130 Heat Treated Steel Washers and Nuts, Chevrolet, Big Block, Kit

Part Number: MIL-81140

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Estimated Ship Date: May 5, 2026 if ordered today

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Milodon Main Stud Kits 81216

Main Studs, 2-Bolt, Oldsmobile, 307, 350, 403, Kit

Part Number: MIL-81216

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Estimated Ship Date: May 8, 2026 if ordered today

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Estimated Ship Date: May 8, 2026 if ordered today

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ARP Main Stud Kits 184-5401

5 out of 5 stars ( 2 )

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Melling Engine Expansion Plug Kits MPE-186BR

Freeze Plug Kits Bagged - Brass

Part Number: MEL-MPE-186BR

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Estimated Ship Date: Feb 23, 2026 if ordered today

Silver Sport Transmission Cylinder Head Dowel Pins BHI-00007

Offset Dowel Pins Mazda Rotary .007

Part Number: IST-BHI-00007

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Silver Sport Transmission Cylinder Head Dowel Pins BHI-00014

Offset Dowel Pins Mazda Rotary .014

Part Number: IST-BHI-00014

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Silver Sport Transmission Cylinder Head Dowel Pins BHI-00021

Offset Dowel Pins Mazda Rotary .021

Part Number: IST-BHI-00021

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Milodon Main Stud Kits 81117

Main Studs, Straight 4-Bolt Main, Chevy, 350, 400, with Windage Tray, Kit

Part Number: MIL-81117

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

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ARP High Performance Series Main Bolts 134-5202

4.75 out of 5 stars ( 37 )

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Milodon Main Stud Kits 81125

Main Studs, 2-Bolt Main, Chevy, 350, 400, Kit

Part Number: MIL-81125

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Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

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Summit Racing™ Main Stud Kits SUM-910205

2.75 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Milodon Main Stud Kits 81138

Main Studs, 2-Bolt Main, Chevy, Big Block, Kit

Part Number: MIL-81138

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Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

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ARP High Performance Series Main Bolts 135-5002

5 out of 5 stars ( 16 )

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Milodon Main Stud Kits 81215

Main Studs, 2-Bolt, Oldsmobile, 350 Diesel, 400, 425, 455, Kit

Part Number: MIL-81215

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Estimated Ship Date: May 11, 2026 if ordered today

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ARP High Performance Series Main Bolts 185-5001

5 out of 5 stars ( 1 )

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PRW Main Cap Stud Kits 1045422

Main Studs, 8740 Chromoly, 200,000 Psi Tensile Strength, 2-Bolt Main, Chevy, Big Block, Kit

Part Number: PQX-1045422

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Estimated Ship Date: Apr 15, 2026 if ordered today

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Estimated Ship Date: Apr 15, 2026 if ordered today

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ARP High Performance Series Main Bolts 135-5002

5 out of 5 stars ( 16 )

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MAHLE Original Cylinder Sleeve Seals S50564CP

Sleeve Assembly Ring Set - Buick 301,350L Eng. (77-79), Checker 327,350 Eng. (69-79), Chev.

Part Number: MAH-S50564CP

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Pioneer Automotive Engine Expansion Plugs PE-152-B

EXP PLUG KIT

Part Number: PIO-PE-152-B

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today