Engine Blocks
- Mopar®Double Ended StudDouble Ended Stud by Mopar®. Mounting. Engine Lift Bracket To Cylinder Head. Rear Lift Hook To Cylinder Head. Fuel Rail to Intake Manifold. Throttle Body Shield To Intake Manifold. Fuel Rail Assembly to Cylinder Head. Heat Shield...Carefully crafted from premium materialsExcellent corrosion and wear resistance$1.19 - $29.80
- ACDelco®GM Genuine Parts™ Engine Cylinder Block Dowel SleeveGM Genuine Parts™ Engine Cylinder Block Dowel Sleeve by ACDelco®. GM Genuine Parts Multi Purpose Pins are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts...Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors$3.94 - $8.07
- Mopar®Engine BlockEngine Block by Mopar®. Want your prized possession to look and perform the way it was designed to? Then top-of-the-line Mopar automotive parts and accessories are for you. Made using the latest manufacturing technology to meet the...Ideal solution to keep your vehicle in top shapeCrafted from premium-grade materials and the latest technology$0.34 - $9,836.06
- Mopar®Engine Long BlockEngine Long Block by Mopar®. Want your prized possession to look and perform the way it was designed to? Then top-of-the-line Mopar automotive parts and accessories are for you. Made using the latest manufacturing technology to meet the...Ideal solution to keep your vehicle in top shapeCrafted from premium-grade materials and the latest technology$3.56 - $39,652.89
- Mopar®Engine Short BlockEngine Short Block by Mopar®. Want your prized possession to look and perform the way it was designed to? Then top-of-the-line Mopar automotive parts and accessories are for you. Made using the latest manufacturing technology to meet...Ideal solution to keep your vehicle in top shapeCrafted from premium-grade materials and the latest technology$1.77 - $18,680.03
- Enginetech®Oil Galley ValveOil Galley Valve by Enginetech®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$5.78
- Dart®LS Next GEN III Race BlockLS Next GEN III Race Block by Dart®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$4,654.75
- Dart®Special High Performance Engine BlockSpecial High Performance Engine Block by Dart®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$2,944.48 - $3,088.09
- Livernois Motorsports®Powerstorm™ Pro Series Short BlockPowerstorm™ Pro Series Short Block by Livernois Motorsports®.High quality at an affordable priceExpertly made from premium materials$6,587.99 - $9,271.99
- Livernois Motorsports®Powerstorm™ Race Series Short BlockPowerstorm™ Race Series Short Block by Livernois Motorsports®. The Powerstorm Race Series product line is built around proprietary race components and expert craftsmanship, designed to win races and survive whatever you can throw at...High quality at an affordable priceExpertly made from premium materials$8,417.99 - $18,299.99
- Livernois Motorsports®Powerstorm™ Street Series Short BlockPowerstorm™ Street Series Short Block by Livernois Motorsports®. The Livernois Street Series product line is built for customers with budget and value as a top priority. These products are built using the same standards and quality as...High quality at an affordable priceExpertly made from premium materials$5,367.99 - $6,587.99
- Fel-Pro®Valley Pan GasketValley Pan Gasket by Fel-Pro®. Designed utilizing the latest technology, this product by Fel-Pro features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or...Meets or exceeds all original equipment specificationsApplication specific design to ensure a perfect fit$17.31 - $58.01
- ACDelco®Genuine GM Parts™ Valley Pan CoverGenuine GM Parts™ Valley Pan Cover by ACDelco®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$62.90 - $382.12
- Genuine®Valley PanValley Pan by Genuine®. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed utilizing the latest technologies and manufactured from premium materials using state-of-the-art...Made with precision and quality in mindDesigned to meet your specific needs$92.03 - $592.95
- Melling®Cylinder LinerCylinder Liner by Melling®. Melling replacement cylinder liners provide an efficient and economical way to replace the cylinder sleeves needed for a quality engine rebuild. Melling cylinder liners are manufactured using the highest...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$24.37 - $113.66
- Melling®Cylinder SleeveCylinder Sleeve by Melling®. Melling Cylinder sleeves are made from centrifugally cast, high strengthgray iron. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels...Universal flanged sleeves provide extra insurance against sleeve movement in performance applicationsReduce the critical factors that secure standard liners such as press fit, cylinder ledge at bottom of bore, and heat expansion rates of metals$90.93
- Melling®Sleeve AssemblySleeve Assembly by Melling®. Melling sleeves are made from centrifugally cast, high strengthgray iron. It is a lower carbon iron alloyed with chromium, copper, and nickel to produce a harder (241-293 BHN) more wear resistant surface....Designed to unlock more performance out of your vehicleDeliver a reasonable balance of strength and durability$126.08
- URO Parts®Valley PanValley Pan by URO Parts®. Designed utilizing the latest technology, this product by URO Parts features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$55.00 - $64.41
- Febi®Crankcase Housing Cover with GasketCrankcase Housing Cover with Gasket by Febi®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$69.28 - $70.40
- Livernois Motorsports®Powerstorm™ Displacement On Demand Delete Valley TrayPowerstorm™ Displacement On Demand Delete Valley Tray by Livernois Motorsports®. This tray is the core of this conversion based around the deletion of the DOD/AFM system the custom billet CNC delete plate which fits under the factory...Easy installation to convert from DOD/AFM system to non-DOD/AFMThe Livernois DOD/AFM delete plate retains full function of the factory PCV system, which is critical to engine performance$249.99
- MTC®Engine Torque Strut MountEngine Torque Strut Mount by MTC®. If you’re looking for replacement parts at reasonable prices, then MTC parts are the way to go. Manufactured by highly qualified experts who follow stringent quality standards, these parts...Ideal solution to restore the performance of your vehicleManufactured using high-strength materials for maximum reliability$23.01 - $32.59
- Moroso®Engine Storage PlateEngine Storage Plate by Moroso®. Leave the competition behind by upgrading your vehicle with superior-grade Moroso parts and accessories. They are designed to meet the needs of both professional and amateur racers and feature rigid...Designed to keep your race or high-performance vehicle operating at its bestEngineered using sophisticated software and machinery for outstanding performance$40.99
- Dorman®Expansion PlugExpansion Plug by Dorman®. Dorman offers a comprehensive line of Engine Expansion Plug Kits to cover a range of applications. The kits include all parts necessary for a complete repair.Direct fit kits available for ease of replacementExpansion Plugs also available individually$0.44 - $31.35
- Mopar®Engine Block HeaterEngine Block Heater by Mopar®. Want your prized possession to look and perform the way it was designed to? Then top-of-the-line Mopar automotive parts and accessories are for you. Made using the latest manufacturing technology to meet...Ideal solution to keep your vehicle in top shapeCrafted from premium-grade materials and the latest technology$28.19 - $366.18
- Mopar®Engine Piston OilersEngine Piston Oilers by Mopar®. Want your prized possession to look and perform the way it was designed to? Then top-of-the-line Mopar automotive parts and accessories are for you. Made using the latest manufacturing technology to meet...Ideal solution to keep your vehicle in top shapeCrafted from premium-grade materials and the latest technology$26.30 - $36.68
- Genuine®Expansion PlugExpansion Plug by Genuine®. If your engine parts is in need of repair, don’t compromise the performance and safety of your car with suspect, off-brand replacement parts from the local auto parts chain store. On our website you'll...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$0.51 - $29.90
- Phillips & Temro®Engine HeaterEngine Heater by Phillips & Temro®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$75.45 - $95.19
- ACDelco®GM Genuine Parts™ Engine Block Dowel PinGM Genuine Parts™ Engine Block Dowel Pin by ACDelco®. GM Genuine Parts Multi Purpose Pins are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts installed...Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors$2.81 - $8.07
- ACDelco®GM Genuine Parts™ Engine Block Drain PlugGM Genuine Parts™ Engine Block Drain Plug by ACDelco®. GM Genuine Parts Multi Purpose Threaded Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts...Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors$1.24 - $10.12
- ACDelco®GM Genuine Parts™ Engine Oil Galley PlugGM Genuine Parts™ Engine Oil Galley Plug by ACDelco®. GM Genuine Parts Multi Purpose Threaded Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. GM Genuine Parts are the true OE parts...Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors$1.24 - $25.85
Just as construction of a building begins with a foundation, assembly of an engine starts with the block. Major components like the crankshaft, pistons and cylinder head(s) are installed on the block, and the block is usually where the motor mounts are installed that attach the block to the vehicle chassis. Engine blocks used to be predominately made of cast iron, but today most vehicles have aluminum blocks with cast iron cylinder liners.
Engine blocks are most commonly identified by their cylinder configuration. In-line engines have the cylinders next to one another in a row. 3, 4, 5, and 6-cylinder in-line engines are common, but years ago many vehicles came with “straight 8s”. V-type engines allow multiple cylinders to be assembled in a much more compact package, with an equal number of cylinders in each bank. The angle of the V is usually (but not always) 90-degrees and there can be anywhere from 6 to 12 cylinders in a modern V-type engine. In the past some Ford and Lancia vehicles were equipped with V4 engines, and in the 1930s luxury vehicles like Cadillac and Marmon came with massive V16 engines. Less common are horizontally opposed “flat” engines, where 2 or 3 cylinders are arranged on either side of the crankshaft. This configuration was famously used in the Volkswagen Beetle but has also been used extensively by Porsche and Subaru.
After an engine block is cast it undergoes extensive machining so other components can be properly installed. The oil pan rails, block deck and other surfaces are machined smooth for proper gasket sealing. The bores for the crankshaft (and camshaft on overhead valve engines) are machined to allow the installation of plain bearings. All the required attachment holes are drilled/tapped to accept fasteners. The block is bored 90 degrees to the crankshaft centerline and honed to the finish required for optimal piston ring seating. When an engine is remanufactured it is common to bore/hone the cylinders, resurface the block deck, and align hone the main bearing saddles.
Engine blocks also include an extensive network of coolant and oil passages. The oil pump usually bolts to the block and passages are necessary to carry oil under pressure to the crankshaft and camshaft bearings and to the cylinder head so the valvetrain can be lubricated. There are also paths for the oil to drain back to the oil pan. The collection of passages cast into the block for coolant flow is known as the “water jacket”. Coolant is drawn from the radiator by the water pump and circulated through the block and heads, absorbing heat from the cylinders and combustion chambers. It then flows out through the top radiator hose back to the radiator where it is cooled. Holes made in the block to facilitate the casting process are sealed by core plugs.
Aftermarket engine block makers analyze the factory product and they know the weaknesses and where improvements can be made. As a result, you can get blocks made with more material to prevent bore distortion and maintain head gasket seal, and billet steel splayed 4-bolt main caps for greater strength. Performance blocks are available with larger water jackets for improved coolant circulation and re-engineered oil galleries and oil feed holes to increase oil flow. Perhaps the best motive for using an aftermarket block is that your engine can be made so much larger. When it comes to making horsepower, there’s no substitute for cubic inches, but the meat in a factory block can limit the size of an overbore, and there may not be enough room inside the crankcase for a substantial increase in stroke. Aftermarket blocks have more material for increased bore size, and some even have larger bore spacing. Blocks are available with the cam located higher up in the block to clear a stroker crank. You can build an engine with far greater displacement that’s still the same physical size.
Browse by Part Name
Featured Brands
Related Categories
- Engine Assemblies
- Motor Mounts
- Valves & Valvetrain Parts
- Pistons, Rings & Connecting Rods
- Oil Filters
- Serpentine Belts & Auxiliary Drive Belts
- Valve Covers
- Timing Gears, Chains & Covers
- Engine Oil Pans, Drain Plugs & Dipsticks
- Cylinder Heads
- Timing Belts
- Engine Pulleys
- Engine Sensors, Relays, Switches & Connectors
- Oil Pumps
- Drive Belt Tensioners
- Oil Coolers
- Camshafts
- Crankshafts
- Engine Management Systems
- Engine Bearings
- Harmonic Balancers
- Engine Rebuild Kits
- Oil Catch Cans
- Balance Shafts
- Engine Swap Kits
- Engine Wiring Harnesses
- Intercoolers
- Throttle Bodies
- Carburetors
- Motor Oils