Engine Blocks & Parts | Summit Racing

Dorman Oil Line Block-Off Plate Kits

Dorman oil line block-off plate kits are used to seal off or cover a port in the engine's oil system, often when an oil cooler or another component is removed or not being used. Kits include a precision-machined plate, necessary gaskets, O-rings, and hardware to create a reliable, leak-free seal. These are direct replacements for original equipment parts that are missing or damaged, and they're made from durable, corrosion-resistant materials engineered to withstand high temperatures and engine fluids, ensuring a long service life.

2.0 out of 5 stars ( 1 )

$15.99

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

$3,170.66

On Sale

Howards Cams Extreme Billet Main Caps

Howards Cams extreme billet main caps are precision CNC-machined from superior-quality low-carbon 1020 billet material. They come available as stock replacements (straight bolt) or with splayed outer bolt holes. The splayed caps feature 10 degree angled outer holes to positively reinforce and tie the block together. Front, rear and center caps are all available. Use all the Howards Cams caps together for the ultimate in bottom-end stress and flex management. Howards Cams main caps feature side notches for easy removal and are proudly 100 percent manufactured in the USA. Line boring is required after installation.

4.14 out of 5 stars ( 14 )

$285.99

$89.99

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$295.99

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

$30.95

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$86.75

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 )

$159.99

Summit Racing™ 5.7L Hemi Gen III Engine Blocks

A Summit Racing™ 5.7L Hemi Gen III engine block is the perfect foundation to start your project or repair your daily driver. Each engine block undergoes a rigorous testing and machining process, including: Oven cleaning; testing for cracks through magnetic particle inspection; and main line honing. They're bored and honed with a torque plate, given a hot tank wash; cam bearing journals are line bored and cam bearings are installed; and the units receive a fresh coat of paint before final packaging and shipping. Start your project or repair off right with a Summit Racing™ 5.7L Hemi Gen III engine block.

4.25 out of 5 stars ( 4 )

$1,329.99

Chevrolet Performance LSX Bowtie Engine Blocks

Chevrolet Performance LSX Bowtie engine blocks are designed for the advanced competition engine builder. They feature Siamese cylinder bores and a semi-finished deck height. The blocks can accept a maximum stroke of 4.250 in., a maximum bore of 4.250 in., and can support displacements of 454 cu. in. or more. LSX Bowties feature cast iron construction with an orange powdercoat finish. They accept all Gen III and IV LS-style cylinder heads, crankshafts, camshafts, and other components. Order the model with deck height and other options needed for your application. Additional features and specs include: * Front oil feed lines that can be plugged or restricted for mechanical flat tappet or mechanical lifter applications * Can be safely machined to 9.200 in. deck height * 1054 billet steel 6-bolt main bearing caps * 6-bolt cylinder head bolt pattern * Cam bores that can be machined to accept 60mm roller bearings * Can be machined for larger diameter lifters * External oil pump feed at the rear * Added 7th transmission bolt hole to work with early-style GM transmissions * Can accept a front motor plate for racing use * Threaded freeze plugs that can be used for external heaters or coolers * Windowed main bulkhead

5.0 out of 5 stars ( 1 )

$4,794.49

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$5,864.99

Chevrolet Performance LSX454 Bare Blocks

Delivering the seemingly impossible combination of professional racing-level strength and entry-level affordability, the Chevrolet Performance LSX454 Bowtie bare block is the next revolution in high performance engine building. This durable iron-block casting is based primarily on GM's production LS7 block, but designed with more material in key areas—including thicker deck and bores—to support displacements of 454 cu. in. or more, and unique 6-bolts-per-cylinder-headclamping capability that enables forced-induction and nitrous combinations of greater than 2,000 hp. Because the LSX Bowtie block is based on production LS blocks, all of the LS-Series Gen IV cylinder heads, crankshafts, oil pans, camshafts, and accessories bolt right up to it. There is also a tall-deck version for building even larger engines. Chevrolet Performance delivers the LSX Bowtie block semi-finished, allowing you to finish it to your needs. Whether you're building a "tame" 500-horse street engine for your hot rod or a 1,700 hp turbo engine for an Outlaw drag racer, the LSX Bowtie block is the foundation for an unbeatable combination—at an unbeatable price! LSX454 production block: * 4.185 in. bore * Fully CNC-machined * Deck plate honed * Align-honed main bearings * Deck height 9.240 in. (production) * Billet steel main caps * Includes all hardware * Used in LSX454 crate engine LSX Bowtie block specs and features include: * CNC-machined cast iron block * True priority main oiling * 6-head bolts per cylinder * Standard 4.400 in. bore spacing * Extra-thick Siamese cylinder bores * Semi-finished, machined thicker decks * LS7-style, 6-bolt dowel-located billet main bearing caps * Wet-sump and dry-sump oiling capability * Production-style deep-skirt headbolt holes * Production bolt hole and thread sizes * Maintains production exterior accessory mounting provisions * Front motor plate mounting holes added * Additional material cast around cam bearings for greater strength * 8mm exterior/interior fifth- and sixth-headbolt holes * Standard 0.842 in. lifter bores * Accommodates all LS oil pumps and oil pans * External oil pump feed (rear of block) * Main web bay-to-bay breathing holes to support greater horsepower * Includes unique cam retainer, rear cover and lifter retainers For the advanced LSX competition engine builder, you will fully enjoy the following features of the new LSX Bowtie block: * Front oil feed holes can be plugged/restricted for mechanical flat tappet or mechanical roller lifter applications * Can be machined safely to 9.200 in. deck height * Maximum 4.200" bore at .200 in. minimum wall thickness (naturally aspirated applications) * Head bolt holes can be machined for 1/2 in. studs * Cam bores can be machined to accept 60mm roller bearings * Can be machined for larger diameter lifters and/or 1.060 in. bronze bushings * Front oil feed lines can be plugged and external oil pump and/or aftermarket dry sump systems can be used via oil pump feed at rear of block (may be required with certain large stroke/aluminum rod combinations) * Belt cam drive systems can be accommodated; some machining will be required * Front motor plate can be used for racing chassis applications (Sprint car, drag racing, truck pulling, etc.). * Threaded water plugs can be used for external heaters or coolers * Extra stock for main bearing align-honed * 400 mPa tensile strength iron

Not Yet Reviewed

$5,872.33

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.

4.79 out of 5 stars ( 417 )

$124.99

Pioneer Performance Freeze Plugs

These Pioneer performance freeze plugs are designed by engine rebuilders, for engine rebuilders. Several types of freeze plugs are offered in a choice of materials and sizes for a large variety of applications.

4.63 out of 5 stars ( 65 )

$38.99

Chevrolet Performance Oil Cooler Delete Plates

Chevrolet Performance oil cooler delete plates are designed to cover the oil cooler outlet. They're made from aluminum and are available for a variety of specific vehicle and/or engine applications.

4.55 out of 5 stars ( 11 )

$19.99