Racing Engine Blocks & Components
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- ARP®Pro Series 2-Bolt 12-Point Main Bolt Kit (155-5201)Pro Series 2-Bolt 12-Point Main Bolt Kit (155-5201) by ARP®. Far superior to any other main bolts available for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$93.37
- ARP®Pro Series 4-Bolt 12-Point Main Bolt Kit (234-5201)Pro Series 4-Bolt 12-Point Main Bolt Kit (234-5201) by ARP®. Far superior to any other main bolts available for use in competition engines, ARP main bolts are designed to meet the exacting standards and demands of professional engine...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$142.10
- AllStar Performance®Allen Head Oil Restrictor Set (ALL90071)Allen Head Oil Restrictor Set (ALL90071) by AllStar Performance®. Oil restrictors reduce the amount of oil flow to the top of the engine, reducing the risk of evacuating the oil pan in continuous high rpm engines while allowing more oil...Precise manufacturing and high-grade materialsExceptional performance at a competitive price$19.99
- AllStar Performance®Engine Lift Plate (ALL10141)Engine Lift Plate (ALL10141) by AllStar Performance®. 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...Precise manufacturing and high-grade materialsExceptional performance at a competitive price$61.99
- AllStar Performance®Rear Main Seal Adapter (ALL26126)Rear Main Seal Adapter (ALL26126) by AllStar Performance®. Billet aluminum adapter allows installation of a two-piece style crankshaft seal and early (pre-1986) crankshaft into a 1986 and newer SB Chevy (pre-LS) engine. Adapters include...Engineered to help you squeeze maximum performance from your carMade with high-end technologies, modern equipment, and smart materials$126.99
- AllStar Performance®Rear Main Seal Adapter (ALL26125)Rear Main Seal Adapter (ALL26125) by AllStar Performance®. Billet aluminum adapter allows installation of a two-piece style crankshaft seal and early (pre-1986) crankshaft into a 1986 and newer SB Chevy (pre-LS) engine. Adapters include...Engineered to help you squeeze maximum performance from your carMade with high-end technologies, modern equipment, and smart materials$188.99
- AllStar Performance®Valley Cover (GM (LS) Small Block Gen IV) (ALL90107)Valley Cover by AllStar Performance®. Drive with confidence and have the edge with AllStar Performance. With such a ground-breaking design and elaborate development, you’ll never run into a better performance product. It will redefine...Engineered to help you squeeze maximum performance from your carMade with high-end technologies, modern equipment, and smart materials$121.99
- Billet Specialties®Valley Cover (95059)Valley Cover (95059) by Billet Specialties®. Of course, you want only quality and durable materials for your pride and joy, and this superior product by Billet Specialities is just the thing. Made using first-rate materials and advanced...Designed with the latest innovationsMade to ensure a high level of quality$114.50
- COMP Cams®Oil Restrictor (4917)Oil Restrictor (4917) by COMP Cams®. Oil Restrictors. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...High quality at an affordable priceExpertly made from premium materials$25.95
- Canton Racing®Rear Main Seal Adapters (21-850)Rear Main Seal Adapters (21-850) by Canton Racing®. Get the most out of your racing experience with Canton Racing. Manufactured using only premium materials and advanced technologies, this product will provide you with the quality and...High quality at an affordable priceExpertly made from premium materials$225.00
- Darton Sleeves®Brodix™ Cylinder Sleeve (100-1011)Brodix™ Cylinder Sleeve (100-1011) by Darton Sleeves®.Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$112.39
- Darton Sleeves®Brodix™ Cylinder Sleeve (100-1011-A)Brodix™ Cylinder Sleeve (100-1011-A) by Darton Sleeves®.Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$115.47
- Darton Sleeves®Donovan™ Cylinder Sleeve (100-8005-1)Donovan™ Cylinder Sleeve (100-8005-1) by Darton Sleeves®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$152.63
- Darton Sleeves®Donovan™ Cylinder Sleeve (100-9001)Donovan™ Cylinder Sleeve (100-9001) by Darton Sleeves®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$109.69
- Darton Sleeves®Donovan™ Cylinder Sleeve (100-9003-TD)Donovan™ Cylinder Sleeve (100-9003-TD) by Darton Sleeves®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$119.00
- Darton Sleeves®Donovan™ Replacement Cylinder Sleeve (100-9003)Donovan™ Replacement Cylinder Sleeve (100-9003) by Darton Sleeves®. The ASTM specifications for performance ductile iron sleeves indicates a minimum tensile strength of 100,000 pounds. Darton Sleeves are much stronger than this and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$109.69
- Darton Sleeves®Ford™ Cylinder Sleeve (100-8006)Ford™ Cylinder Sleeve (100-8006) by Darton Sleeves®. 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...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$146.42
- Darton Sleeves®Repair Cylinder Sleeve (100-3135)Repair Cylinder Sleeve (100-3135) by Darton Sleeves®.Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$123.70
- Darton Sleeves®Repair Cylinder Sleeve (100-2003)Repair Cylinder Sleeve (100-2003) by Darton Sleeves®.Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$121.80
- Darton Sleeves®Rodeck™ & Brodix™ Cylinder Sleeve (100-1010)Rodeck™ & Brodix™ Cylinder Sleeve (100-1010) by Darton Sleeves®. 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 deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$112.39
- Dart®SHP LS Next PRO Engine Block (31867212)SHP LS Next PRO Engine Block (31867212) 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...Superior strength 220 BHN Cast IronSteel 4-bolt main caps with upgraded ARP main studs.$4,837.32
- Ford Performance®Steel Plug & Dowel Kit (Ford Small Block V8) (M-6026-A46)Steel Plug & Dowel Kit by Ford Performance®. Kit includes all necessary dowels, drain plugs and cup plugs for rebuilding production 4.6L aluminum block. Includes: PN 376099-S PLUG CUP .075" (4), PN 391186-S101 THREADED DRAIN PLUG -...Designed to help you get the most out of your vehiclePerfect for use in high-performance environments$48.91
- Milodon®Hex Head Oil Flow Restrictor Plugs (23100)Hex Head Oil Flow Restrictor Plugs (23100) by Milodon®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...Painstakingly designed to meet your racing needsState-of-the-art manufacturing technology$13.95
- Moroso®Engine Lift Plate (62673)Engine Lift Plate (62673) 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$58.99
- Moroso®Oil Restrictor Kit (22050)Oil Restrictor Kit (22050) 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...Reduces oil flow to upper engine assembly, leaving more oil available for the rod and main bearingsReduces power-robbing windage by reducing the volume of oil passing by the rotating assembly on its return to the pan$24.99
- Moroso®Oil Restrictor Kit (22018)Oil Restrictor Kit (22018) 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...Reduces oil flow to upper engine assembly, leaving more oil available for the rod and main bearingsReduces power-robbing windage by reducing the volume of oil passing by the rotating assembly on its return to the pan$39.99
- Moroso®Oil Restrictor Kit (22016)Oil Restrictor Kit (22016) 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...Reduces oil flow to upper engine assembly, leaving more oil available for the rod and main bearingsReduces power-robbing windage by reducing the volume of oil passing by the rotating assembly on its return to the pan$36.99
- Moroso®Oil Restrictor Kit (22010)Oil Restrictor Kit (22010) 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...Reduces oil flow to upper engine assembly, leaving more oil available for the rod and main bearingsReduces power-robbing windage by reducing the volume of oil passing by the rotating assembly on its return to the pan$26.99
- Moroso®Screw-In Oil Restrictor Kit (22000)Screw-In Oil Restrictor Kit (22000) 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...Reduces oil flow to upper engine assembly, leaving more oil available for the rod and main bearingsReduces power-robbing windage by reducing the volume of oil passing by the rotating assembly on its return to the pan$18.99
- PRW®3 Each Main Cap (1745402)3 Each Main Cap (1745402) by PRW®. PRW Billet Steel Main Caps raise the bar in the high performance industry. The combination of top quality and reasonable pricing sets new standards. They know that when you receive your new PRW...CNC machinedManufactured from 1045 low carbon steel$210.76
An engine block is the base for all major powertrain components including a cylinder head, transmission, etc. Meant to withstand huge thermal and mechanical loads, the blocks are designed according to the expected power, stresses, and durability. Racing engine blocks are designed mainly for those who want to squeeze more horsepower from their vehicles. In general, the main difference between racing motors and their factory counterparts is greater strength, higher performance, ability to work at much higher RPMs, and some specific possibilities you may need to adapt the motor to your requirements.
For instance, you may want to increase the bore diameter, change the stroke length, install roller cam bearings, choose between the wet or dry sump, and so on. While building a racing engine, much attention is devoted to the material; often, it's lightweight and strong aluminum with steel sleeves and main caps. Some manufacturers intentionally leave steel sleeves slightly protruding above the deck of the block, providing a so-called stepped deck option, an alternative to a wire O-ring meant to increase the seal pressure around the cylinder.
Besides, racing engine blocks are designed and built according to the highest precision requirements, using the most accurate honing and controlling clearances in all crucial areas. Also, aftermarket manufacturers find and eliminate pretty much any potential weak points of the stock motors, which usually appear when the factory powerplant is heavily loaded and/or operates at high RPM. A performance crankshaft is made ideally balanced, oil passages and holes are reconsidered to provide sufficient lubrication in all working modes, the piston design can vary to match specific applications, and so on. There are many methods developed in the racing environment throughout the years, and our online store is ready to supply you with high-quality racing engine blocks and related components using the finest technical solutions.