$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

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2021 Engine Blocks & Accessories

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Results 1 - 24 of 25

ARP Main Stud Kits

ARP main stud kits help eliminate main cap walk/fretting and protect the threads in your engine block. They include studs made from 8740 chromoly steel and heat-treated in-house to 190,000 psi tensile-strength rating. The precision J-form threads are rolled after heat-treat for much stronger threads than the competition. Kits come complete with hardened parallel-ground washers and high-quality nuts. Add confidence in the strength of your engine build with the ARP main stud kit designed for your application.

4.81 out of 5 stars ( 390 )

$134.99

$363.99

Ford Performance Parts 7.3L Godzilla Engine Blocks

What a foundation for your build! Ford Performance Parts 7.3L Godzilla engine blocks offer enormous possibilities. These are production cast iron engine blocks as used in the 2020+ F250 Super Duty 7.3L. They have 107.2mm bore. Includes the following components: * Main bearing caps/hardware * Eight piston cooling nozzles * An oil pressure sender * Four cylinder head dowels * Two transmission dowels

4.5 out of 5 stars ( 2 )

$1,503.99

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

Ford Performance Parts Plug and Dowel Kits

When rebuilding your Ford engine, you'll want to use the proper plugs and dowels for the job. These Ford Performance Parts Plug and Dowel kits include the necessary dowels, cup plugs, and pipe plugs for your rebuild.

4.75 out of 5 stars ( 8 )

$40.99

Improved Racing Engine Block Oil Galley Barbell Plugs

Improved Racing's engine block oil galley barbell plugs feature a second O-ring that completely seals off the dirty oil from the clean oil, forcing 100 percent of the flow through the filter. Sharp corners were avoided and machined as smooth fillets to improve oil flow, while the bull nose tip helps smooth oil flow to the oil filter. The shaft diameter is smaller than the OEM plastic barbell to minimize flow restriction, and the threaded hole allows for easy removal with any 4mm x 0.7 threaded screw. Please refer to the Applications tab when ordering to confirm the fitment. Features of Improved Racing's barbell plugs include: * Direct replacement for plastic OEM barbell plug * Precision CNC-machined from billet 6061-T6 aluminum * Viton® rubber O-rings offer high-temperature resistance and excellent chemical compatibility with engine oils

5.0 out of 5 stars ( 18 )

$32.90

Earl's Performance Oil Cooler Block-Off Plates

Earl's Performance oil cooler block-off plates are billet covers—built with an extra 1/8 in. NPT port that can be used for an oil pressure gauge or a turbo oil supply port. The 1/8 in. port is located on the top to provide extra header clearance. These oil cooler block-off plates are designed to fit most GM LS/LT oil pans. Earl's Performance oil cooler block-off plate feature: * Billet aluminum construction with black anodized finish * Includes block-off plate, O-ring seal (no gasket required), and mounting screws

4.78 out of 5 stars ( 9 )

$56.19

$63.15

Mopar Replacement Crankshaft Rear Oil Seal Retainers

Mopar Replacement rear main seal housings are designed to hold the main oil seal on the rear of the crankshaft. They are manufactured from durable aluminum and are ideal for replacing damaged housings or building a new project from scratch.

5.0 out of 5 stars ( 1 )

$57.99

ICT Billet Oil Cooler Block-Off Plates

ICT Billet oil cooler block-off plates are the perfect solution for removing the factory oil cooler from the side of the oil pan, giving you improved frame rail clearance. They allow you to retain the original pan without the need for the factory oil cooler, making them ideal for custom builds or tight engine bays. Made from high-quality, aerospace-grade billet aluminum for strength and longevity, the block-off plates are designed with integrated seals to provide a secure, leak-free fit without the hassle of additional sealants. The innovative two-piece design ensures oil continues to circulate properly, maintaining optimal engine performance. These block-off plates are easy to install and come with all the necessary components for installation, including the plate, seals, and hardware.

Not Yet Reviewed

$179.99

Summit Bucks

ACDelco Piston Oiler Kits

ACDelco offers engine piston oil nozzles for a wide range of cars, trucks, and vans. These billet steel replacements are designed, engineered, and tested to rigorous standards—all backed by General Motors. GM Genuine Parts are true OE components installed during the production of (or validated for) GM vehicles. Order the piston oiler kit recommended for your application.

Not Yet Reviewed

$9.99

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 )

$31.99

Improved Racing Oil Cooler Adapters

Improved Racing oil cooler adapters have a low-profile for more header clearance. The adapters are machined from a single piece of billet aluminum and black anodized. For additional clearance with reliable sealing, they come with aluminum gaskets fitted with Viton® seals, and the adapter mounting holes are counter-bored so the mounting bolts fit flush with the adapter surface. Select Improved Racing oil cooler adapters are also available with a built-in thermostat. Oil coolers help prevent the oil from getting too hot, but are also prone to lowering oil temperatures too much, especially in colder weather or during highway driving. The rebuildable thermostat speeds warm-up and helps reduce engine wear and horsepower losses by preventing oil temperatures from dropping below optimal levels. Features and benefits * 100 percent bolt-on solution; no fabrication, bending, or line modification is required * Viton® seals throughout for maximum reliability * Oil exiting the adapter is filtered oil * 6061 T-6 billet aluminum construction with black MIL-A-8625 Type II anodized finish * Standard female -8 AN O-ring boss threads for optional anodized adapter fittings in your choice of -8 AN, -10 AN, or -12AN lines * Depending on application, includes port(s) for oil sensors or turbo oil supply * Includes all necessary hardware * Limited lifetime warranty

4.2 out of 5 stars ( 10 )

$159.00

Holley Block-Off Kit for T4 Wet Cooler Feed Ports

Holley Performance offers block-off kits for T4 wet cooler feed ports. They're ideal for LT4 engine applications, such as those found on Corvette and Camaro applications from 2015 and up. The engine water pump aluminum block-offs are red anodized for protection.

Not Yet Reviewed

$26.35

On Sale

QuickTime Bellhousing Dowel Pins

QuickTime offers bellhousing accessories, including these dowel pins, to help you to complete your project. They're made from quality material and are designed to correct the improper register bore alignment of bellhousing to your engine crankshaft center line.

3.5 out of 5 stars ( 4 )

$83.35


$45.84

$81.35

On Sale

Holley Ford 7.3L Godzilla Rear Block Plug Kits

Some engine swaps and racing applications do not need the heater, but elimination of the heater is difficult on the 7.3-liter Godzilla engine since the hose inlet and outlet passages are tough to plug and look like a cobbled up mess using traditional hoses, clamps, and plugs. Holley Ford 7.3L Godzilla rear block plug kits include a machined steel billet plug with O-ring seal, mounting bracket, and retaining bolt to block off the rear port with a professional look. Features: * Works with Holley's front/heater block-off kit to block all cooling ports * The plug is designed to handle high pressure and high temperatures--typical conditions of the cooling system * Easy installation without the need to tap holes or fabricate special plugs and caps * Steel plug features a clear zinc-plated finish

Not Yet Reviewed

$19.49


$10.72

Cummins by Mopar Replacement Bellhousing Dowel Pins

Cummins by Mopar bellhousing dowel pins make perfect alignment possible. These pins will provide the right fit and function, so the install of your bellhousing will go easier. When working with your diesel build, Mopar offers all the parts—even the small ones—to make your job a success.

Not Yet Reviewed

$56.99

Summit Bucks

ACDelco GM Genuine Parts Engine Oil Fill Caps

ACDelco GM Genuine Parts engine oil fill caps provide the perfect OE replacements without breaking your budget. They are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Choose the cap style designed for fitment on your particular engine block.

4.14 out of 5 stars ( 14 )

$20.99

On Sale

Summit Racing™ Mockup Replica Blocks

Summit Racing™ Mockup Replica Blocks are light-weight and ship disassembled for ease of shipping and storage. The individual panels are easily assembled with tabs and slots for superior rigidity and accuracy compared to bolt-together types. Steel resists the heat from welding, so custom motor-mounts can be fabricated right on the block.

3.93 out of 5 stars ( 15 )

$299.99

Improved Racing Factory Oil Cooler Delete Kits

Improved Racing factory oil cooler delete kits remove the factory water-to-oil 'heater' so your vehicle can run with a more efficient air-to-oil cooling system. These kits come with everything needed to cap-off the radiator hose barb and water pump fittings from the factory setup. An oil cooler adapter (sold separately) is necessary to replace the factory water-to-oil cooler and allow for connecting an air-to-oil cooler. Please verify the fitment and order the Improved Racing factory oil cooler delete kit designed for your application.

Not Yet Reviewed

$14.90

PRW Main Cap Stud Kits

PRW main cap stud kits help eliminate main cap walk and also protect the threads in your engine block. The main cap studs work with the main caps to help strengthen the foundation for your next high horsepower build. These main cap fasteners come complete with hardened parallel-ground washers and quality hex-style nuts. Add confidence in the strength of your engine build when you use these PRW main cap stud kits.

3.5 out of 5 stars ( 6 )

$265.34

Clearance

Cummins By Mopar Replacement Engine Expansion Plugs

Cummins by Mopar offers expansion plugs for hundreds of Dodge and Ram diesel engine applications from 1989 and up. They're manufactured from premium materials in different styles for an OE fit and factory performance. The freeze plugs help to prevent leaks. Order the model recommended for your vehicle.

Not Yet Reviewed

$11.99


$3.50

Dart Iron Eagle Mopar Gen III Cast Iron Bare Blocks

Designed from a clean slate approach, Dart now offers the Iron Eagle Mopar Gen III cast iron bare blocks that address the shortcomings of the Hemi Gen III platform, and are the ideal candidate for hot rodders, drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts. By utilizing conventional style main caps with Gen III rotating assemblies and related components, Dart has addressed the windage and oil control problems, along with revising the cooling and oiling passages for improved flow. Non-VVT and VVT version offerings are available. Get everything you ever wanted out of your Gen III Hemi engine with the Iron Eagle Mopar Gen III cast iron bare blocks by Dart! Key features of Dart Iron Eagle Gen III Hemi cast iron engine blocks: * Manufactured from superior strength cast iron * Priority main oiling system with two lifter crossovers and restrictor provisions * Siamese cylinder bores with extra thick walls * Extra-thick decks ensure reliable head gasket seal * Blind head bolt holes available in 7/16 in. standard or 1/2 in. upgrade * Scalloped water jackets increase flow around cylinders for better cooling * Clearance for 4.050 in. stroke with steel rods * Billet steel 4-bolt main caps 1-5, center 3 main caps splayed * Main studs standard * Gen III Hemi style motor mounts * Provisions for OE stock roller lifters and cam * Uses stock timing covers * All OE bolt holes for starter, water pump, etc. * Block can be machined for VVT or non-VVT camshafts * Parts kit included (32000050 for non-VVT, or 32000051 for VVT); note parts kits do not include cam bearings

Not Yet Reviewed

$5,499.99

Callies Mopar Engine Blocks

Callies Mopar engine blocks are Officially Licensed Mopar products. Together with Energy, Callies will manufactured and distribute cast iron engine blocks and components. All parts manufactured will carry authentic Mopar part numbers and be produced from original Mopar molds, cores, and engineering data. The Mopar blocks are being offered in different bore sizes in finished and RoughBore (RB) versions.

Not Yet Reviewed

$2,202.04

$3,186.85

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

$12.99

Cylinder Works Cylinders

Cylinder Works cylinders are your powersports alternative to OEM or re-plating. These standard bore cylinders are brand new—not remanufactured or replaced—and are nickel silicon carbide-plated cast aluminum to provide long life. They're precision-honed to the exact size to make your piston installation easier. Cylinder Works offers dirt bike and ATV enthusiasts quick and affordable access to direct fit replacement cylinders. Order the bore size recommended for your application.

Not Yet Reviewed

$292.48

$575.66

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