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Engine Blocks & Accessories

Part Groups

Results 1 - 24 of 41

Allstar Performance Cylinder Head Dowel Pins

Allstar Performance cylinder head dowel pin kits will keep gaskets in position and properly align cylinder heads to your engine block. Dowel pins are an often overlooked item when performing a rebuild or upgrading cylinder heads. Available for different applications, don't skip the pins—let Allstar kits make your build a definite success.

4.79 out of 5 stars ( 24 )

$6.99

$8.99

Chevrolet Performance Main Cap Fasteners

Keep your main caps secure with a set of Chevrolet Performance main cap fasteners. They are made from quality OEM materials and are built to strict tolerances to ensure a direct fit. You don't ever want to have a failure in your engine's rotating assembly. Pick up Chevrolet Performance main cap fasteners for maximum reliability.

5.0 out of 5 stars ( 6 )

$5.99

$6.99

Dorman Expansion Plugs

Dorman expansion plugs are conveniently designed aftermarket replacements for stripped plugs. A leak-proof fit and long service life are assured every time, due to high-quality standards and materials used in the manufacturing process. Dorman engine and camshaft expansion plugs are offered in multiple sizes, styles, and materials for precise fitment on countless makes and models. They're easy to install and available individually or in multi-pack sets.

4.64 out of 5 stars ( 74 )

$4.99

$10.99

ACDelco GM Genuine Parts Replacement Bolts

ACDelco GM Genuine Parts replacement bolts are available for a variety of applications, including transmission torque converter housings. Installing factory-recommended hardware helps to ensure the same performance, durability, and service life you expect from General Motors.

3.29 out of 5 stars ( 14 )

$3.99

Pioneer Timing Cover Dowels

Pioneer timing cover dowels make timing cover installation better. They're precision-machined from steel and help you align your timing cover with ease. The dowels are available for Chevy engine applications from the 1950s and up.

4.63 out of 5 stars ( 8 )

$9.99

BTR Oil Galley Barbell Plugs

BTR oil galley barbell plugs are quality replacements for your LS engine. These oil diverter valves fit in the back of your LS engine block and are essential to the oil pressure circuit. You don't want to overlook the little things for an enduring repair or build, so don't forget to order a BTR oil galley barbell plug.

5.0 out of 5 stars ( 3 )

$6.99

ACDelco Cylinder Head Pins

ACDelco cylinder head pins offer accurate alignment. The precise positioning of your cylinder heads prevents leaks and keeps your engine running efficiently. So, maintain the quality performance of your ride by utilizing cylinder head dowel pins from ACDelco in your build.

3.9 out of 5 stars ( 10 )

$2.99

$3.99

Melling Freeze Plugs

Seal up the casting core holes in your engine block and heads with Melling freeze plugs. They're manufactured from a variety of quality materials—such as brass, steel, and stainless steel—and offered in different diameters and depths to fit your specific application. These expansion plugs help protect against cracks caused by the pressure of frozen coolant and in regular operation will ensure that all vital fluids stay in the engine, where they belong. They are available for a wide range of makes and models, and can be ordered individually or in a multi-piece kit.

4.57 out of 5 stars ( 163 )

$1.99

$10.99

Chevrolet Performance Bellhousing Dowel Pins

Chevrolet Performance bellhousing dowel pins allow you to easily align your transmission into the block. Correct alignment provides clean clutch release, while maximizing pilot bearing and transmission life. Chevrolet Performance bellhousing dowel pins also help to reduce shifter problems.

Not Yet Reviewed

$6.99

BTR Main Cap Fasteners

Brian Tooley Racing offers main cap fasteners for a variety of Chevy small block engine applications from 1997 and up. These bolts are used to secure the main bearing caps to ensure proper operation of the crankshaft. The fasteners are stock replacement bolts for Gen III and Gen IV LS engines, available with or without a windage tray provision.

Not Yet Reviewed

$3.99

Melling Engine Expansion Plug Kits

Melling engine expansion plug kits come with everything needed to replace the leaky "freeze" plugs on your current engine. When you have the motor out of the chassis, it's the ideal time to update the plugs before they start leaking. Order the kit recommended for your application—and stay ahead of the game with Melling!

4.33 out of 5 stars ( 12 )

$3.99

$10.99

Crown Automotive Main Cap Fasteners

Crown Automotive main cap fasteners are durable steel construction. The components in your engine are only as strong as the fasteners holding them together. Some of the most stressed-out parts of an engine are the relatively inexpensive nuts and bolts that hold it all together. Crown Automotive offers a selection of high-quality fastener parts for replacement of snapped or worn parts. Order the main cap fasteners designed for your engine application.

1.0 out of 5 stars ( 1 )

$3.99

RHS Main Cap Dowel Pins

Racing Head Service offers main cap dowel pins for a variety of LS-based engine applications. The pins are designed to locate the main caps to the block on an RHS race engine.

Not Yet Reviewed

$9.95

BTR Engine Coolant Plugs

BTR engine coolant plugs are ideal replacements for your old engine block coolant drain plugs. They're available in large brass models for LS motors or small zinc plated models for Gen III/Gen IV LT motors. The expansion plugs are offered individually or in larger kits. Make engine coolant drainage easy again with the BTR engine coolant plug designed for your LS/LT engine application.

5.0 out of 5 stars ( 2 )

$6.49

$7.99

Crown Automotive Engine Block Coolant Plugs

Crown Automotive engine block coolant plugs are manufactured from heavy-duty steel that meets OEM standards for proper stock replacement. These plugs install simply in the vehicle's factory location. Whether you're doing a quick flush or need a replacement fastener, Crown engine block coolant plugs will do trick!

Not Yet Reviewed

$1.99

$9.99

Cloyes Engine Oil Galley Plugs

Cloyes engine oil galley plugs will help maintain proper oil flow and prolong the life of your engine. They are made from durable steel and designed for your specific engine.

3.0 out of 5 stars ( 2 )

$1.99

Mopar Replacement Engine Block Freeze Plugs

Mopar Replacement engine block freeze plugs are manufactured from zinc coated steel that meets OEM standards. These heavy-duty expansion plugs are available in sizes to fit the various outlets in your engine.

Not Yet Reviewed

$10.99

Dart Main Bolts

Maintain proper main cap alignment and tightness using these Dart main bolts. They're manufactured from quality materials and are machined to strict specifications to reduce wear and tear on your block threads.

Not Yet Reviewed

$8.08

Allstar Performance Extra-Long Bellhousing Dowel Pins

Allstar Performance extra-long bellhousing dowel pins are approximately 1/2 in. longer than stock pins and are required when running an engine mid-plate, rear motor mounts, or an aftermarket bellhousing. These extended length steel pins also help with alignment when you're installing an engine—and fit most GM blocks. Order the size and style needed for your application.

5.0 out of 5 stars ( 1 )

$10.79

Melling Oil Galley Barbell Plugs

Melling oil galley barbell plugs are quality replacements for the galley barbell plugs on your LS engine. These oil diverter valves fit in the back of your LS engine block and are essential to the oil pressure circuit. You don't want to overlook the little things for an enduring repair or build, so don't forget to order a Melling oil galley barbell plug.

5.0 out of 5 stars ( 3 )

$9.99

On Sale

Mr. Gasket Cylinder Head Dowel Pins

Why reuse your old dowel pins when you have machine work done on your block? I can't think of a good reason, especially when these Mr. Gasket dowel pins are inexpensive and readily available. They are made from high quality steel, precision machined and case hardened for accurate cylinder head alignment.

3.75 out of 5 stars ( 4 )

$17.19


$9.45

Pioneer Cylinder Head Dowel Pins

Pioneer offers quality new cylinder head dowel pins at an affordable price. These dowel pins are great to have on hand when you do machine work on your block. Pioneer cylinder head dowel pins are made with first-rate materials and are available in a choice of sizes for accurate cylinder head alignment.

4.82 out of 5 stars ( 56 )

$8.99

$9.99

BTR Engine Expansion Plugs

BTR engine expansion plugs can fill those sand-release casting holes in your Gen III/Gen IV engine block. They're 0.25 in. tall with a 0.625 in. diameter. Whatever you call them: freeze plugs; expansion plugs; core plugs—Brian Tooley Racing plug cores will properly seal up your engine block. They're available for dozens of LS-based Chevy engine applications from 1997 and up.

Not Yet Reviewed

$3.99

Melling Intermediate Shaft Bushings

Several Melling oil pump applications require the use of a Melling intermediate shaft bushing to provide additional support for the oil pump driveshaft while installed in the engine block. These high-quality bushing are available for specific applications. Select the one recommended for your engine.

Not Yet Reviewed

$3.99

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