Engine Blocks & Parts | Summit Racing

D.S.S. Main Support Systems

D.S.S. Main Support Systems beef up your block for more power! These D.S.S. Support Systems feature plates machined from 3/4 in. 6061 T6 billet aluminum that creates an additional main web structure to strengthen your block's main webbing. The forces of higher rpm and power-adders can overwhelm main bearing caps and fasteners, causing the caps to walk, fastener threads to fatigue, and your main web to crack! D.S.S. Main Support Systems dampen the harmonics that caused the main caps to move in the first place and effectively tie all five main caps together for enough brawn to produce big power--650+ hp capabilities with a stock block! Splayed 4-bolt main racing blocks are great, but so are the price tags. Race with an American-made, cost-effective solution that strengthens your block and improves your crankshaft life--D.S.S. Main Support Systems.

Not Yet Reviewed

$429.95

Summit Racing™ SPC Engine Blocks

Summit Racing™ SPC Engine Blocks are aftermarket V8 Engine Blocks made for "Street, Performance, or Competition." These new clean sheet designed aftermarket blocks are cast in a modern state-of-the-art German foundry on brand new molds and machined in USA on modern high-speed machining centers that can hold the tightest of tolerances. Why start your engine build with a dirty, old, worn-out production block that needs hundreds or thousands of dollars of machine work--when you can start with a new heavy-duty casting full of high-performance features. We ship these blocks mostly finished but leave the cylinder bore .005" undersize, your machine shop will have to hone them for proper size. You can rest assured that you have a great foundation for your engine build. Check out the features below! Additional details: • Available Versions Include: GM Small Block, GM LS, GM Big Block (coming Soon,) Ford Windsor 5.0 and 351W • Cast in Germany at a Tier 1 OEM foundry • Made with class 35 Iron Alloy, Higher tensile strength and harder than competitors' class 30 • Machine-finished in USA on precision hi-speed machining centers- All dimensions are very accurate! • Priority main oiling systems & Siamese Cylinder bores • Blind head bolt holes • 4-bolt main caps, 180,00 PSI main bolts included

5.0 out of 5 stars ( 11 )

$2,249.99

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$3,399.99

Fleece Performance Freedom Series LSR Aluminum Engine Blocks

Fleece Performance Freedom Series LSR is a premium aluminum Gen IV LS standard deck race block designed for high performance applications. Cast from a proprietary 356 T-6 aluminum ingot, the Freedom Series LSR engine blocks are engineered with precision and designed for durability to deliver unmatched strength and compatibility with OEM LS accessories. Reinforced from top to bottom, the blocks are built for maximum performance with added features, like cross bracing in the lifter valley, maximized crankshaft saddle radius, and a 40 percent larger footprint for the main cap contact surface to the skirt wall. Whether you're upgrading for competitive racing or seeking peak performance, the Fleece Performance Freedom Series of engine blocks ensure reliability and excellence in every detail, making them a perfect choice for serious enthusiasts and professionals alike. Features: * Cross-braced lifter valley: -- Provides added structural integrity and individual drain backs for improved reliability * Heavy-duty deck thickness: -- A robust 0.750 in. deck thickness for enhanced durability * Enhanced design: -- Additional stock to the front and rear valley walls for increased strength -- A minimum 0.625 in. skirt wall thickness -- Complete reinforced exoskeleton combined with Hot Isostatic Pressing (HIP) ensures the highest quality casting available * Billet main caps: -- Billet construction ensures stability and precision fitment -- Utilizes 8740 alloy M10 main studs and side bolts along with dowels on the inner studs of the block for superior clamping and reliability -- Exclusive domed main cap design provides maximum crankshaft support * Maximized crankshaft saddle radius: -- Optimized for performance under high-stress conditions * Lightweight: -- Weighs only 120 lbs. with main caps -- Strong yet lightweight solution * Priority oil system: -- Oil rifling provides priority oil feed to critical bottom-end components -- Reduces heat, wear, and risk of failure * Ductile iron sleeves: -- Durable wear-resistant surface with improved shock absorption Engine block is shipped with: * Durabond GMP-9 cam bearings * LSR rear cover, rear cover gasket, and hardware * Plug kit * Precision ground 1018/1020 steel cam thrust plate * Transmission dowel pins * Oil galley barbell plug * Rear main seal

Not Yet Reviewed

$6,750.00

Ford Performance Parts Boss 302 Engine Blocks

The perfect foundation for your Boss engine--Ford Performance Parts Boss 302 engine blocks! They're built stronger than the originals to make your high performance build a success. Designed as replacements for the legendary Boss 302 and Boss 351 blocks, they use the latest technology and manufacturing techniques. Cast from diesel-grade iron with siamesed bores, thick cylinder walls and decks, Boss block strength is far superior to any Ford production block. Boss 302 blocks are available in standard and Big Bore versions that support engine sizes up to 363 c.i.d. Proven around the world, both on the track and on the street; all Ford Performance Boss 302 blocks are cast and machined to the highest industry standards in the USA. Features include: * Big Bore version features 4.125 in. bore capacity, finished at 4.115 in. rough bore * Standard bore version is finished at 3.990 to 3.995 in. rough bore with 4.125 in. bore capacity * 8.2 in. deck height, finished at 8.200 in. plus .010 to .015 in. * Optimized cylinder wall length for stroker applications up to 3.5 in. with no grinding or clearancing (depends on crank/rod manufacturer) * Splayed 4-bolt mains on 2, 3, 4, main caps * 2-bolt main on first and fifth main caps * Main bearing bores finished to low limit * Finished lifter bores * Machined to accept factory roller lifter guides and lifter guide retainer * Fits factory 1979-95 Mustang oil pan with custom oil pickup tube, part number: M-6622-BOSS302 * NASCAR inspired front oil feed on both lifter galleys * Revised cooling system passageways * Increased bulkhead material * Threaded core and galley plugs (straight thread port plugs with O-ring) * Require special length 1/2 in. head bolts M-6065-BOSS or head studs M-6014-BOSS recommended with M-6049-X306/307/Z304DA heads * Designed for M-6049-X306//X307/C3/D3/Z304DA cylinder heads * Not designed for production 302/351W or M-6049-Y302/Y303/X302/X303/X304/X305 cylinder heads * Uses common O.D. cam bearings M-6261-J351/R351 * Unique cam plug M-6026-S351 included * M-6051-S331 or M-6051-CP331 head gasket recommended * Uses stock-type timing cover (M-6059-D351 recommended; includes fuel pump provision) * Retains clutch cross shaft pivot hole * Original-style oil filter location * Original motor mount boss locations * Original bell housing pattern * Approximate weights: Big Bore 163 lbs.; standard bore 175 lbs.

5.0 out of 5 stars ( 3 )

$2,265.99

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$2,445.99

Fleece Performance Freedom Series LTR Aluminum Engine Blocks

Fleece Performance Freedom Series LTR is a premium aluminum Gen V LT standard deck race block designed for high performance applications. Cast from a proprietary 356 T-6 aluminum ingot, the Freedom Series LTR engine blocks are engineered with precision and designed for durability to deliver unmatched strength and compatibility with OEM LT accessories. Reinforced from top to bottom, the blocks are built for maximum performance with added features, like cross bracing in the lifter valley, maximized crankshaft saddle radius, and a 40 percent larger footprint for the main cap contact surface to the skirt wall. Whether you're upgrading for competitive racing or seeking peak performance, the Fleece Performance Freedom Series of engine blocks ensure reliability and excellence in every detail, making them a perfect choice for serious enthusiasts and professionals alike. Features: * Cross-braced lifter valley: -- Provides added structural integrity and individual drain backs for improved reliability * Heavy-duty deck thickness: -- A robust 0.750 in. deck thickness for enhanced durability * Enhanced design: -- Additional stock to the front and rear valley walls for increased strength -- Minimum 0.625 in. skirt wall thickness -- Complete reinforced exoskeleton combined with Hot Isostatic Pressing (HIP) ensures the highest quality casting available * Billet main caps: -- Billet construction ensures stability and precision fitment -- Utilizes 8740 alloy M10 main studs and side bolts along with dowels on the inner studs of the block for superior clamping and reliability -- Exclusive domed main cap design provides maximum crankshaft support * Maximized crankshaft saddle radius: -- Optimized for performance under high-stress conditions * Lightweight: -- Weighs only 120 lbs. with main caps -- Strong yet lightweight solution * Priority oil system: -- Oil rifling provides priority oil feed to critical bottom-end components -- Reduces heat, wear, and risk of failure * Ductile iron sleeves: -- Durable wear-resistant surface with improved shock absorption Engine block is shipped with: * Durabond GMP-9 cam bearings * LTR rear cover, rear cover gasket, and hardware * Plug kit * Precision ground 1018/1020 steel cam thrust plate * Transmission dowel pins * Oil galley barbell plug * Rear main seal

Not Yet Reviewed

$6,750.00

World Products Merlin IV Engine Blocks

World Products has made improvements to virtually every area of the new Merlin IV engine blocks—with the goal of producing the most technologically advanced and best-performing iron BBC block available today! New features include thicker main webs for increased strength and thicker cylinder walls which are nominally .310 in. @ 4.600 in. bore. In addition to the standard BBC 9.800 in. and 10.200 in. deck heights, new heights measuring 9.500 in., 9.850 in. and 10.250 in. are now available. The World Products Merlin IV engine blocks are also available with a 2.120 in. BBC cam journal and standard .842 in. lifter bores, or with a 2.283 in. journal for a 55mm Babbitt cam and .904 in. lifter bores. World Products has added a front oil feed for dry sump systems, and relocated the lifter oil feeds and restrictor provisions to the front of the blocks.

5.0 out of 5 stars ( 3 )

$3,842.02

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$5,173.48

World Products SBC Motown Blocks

World Products Motown blocks are a great starting point for your performance engine. They feature many improvements over factory castings, including thicker cylinder walls, nodular iron main caps, and special bosses for front-feed oil systems. They will clear strokes up to 4.00 in. without clearancing and are available in different main and bore sizes to suit your needs.

5.0 out of 5 stars ( 1 )

$3,781.95

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$4,736.26

Dart Big M Sportsman Big Block Chevy Cast Iron Bare Blocks

The foundation for a better big block build begins with Dart Big M Sportsman Big Block Chevy cast iron bare blocks. Dart engineered the Big M to be the strongest, most reliable, and easiest to build big blocks on the market. The Dart Big M Sportsman blocks feature: * Standard 9.800 in. and tall 10.200 in. deck heights available for Stroker engines * Standard 4.250 in., 4.500 in., or 4.600 in. bore sizes with Siamesed extra thick cylinder walls to resist cracking and improve ring seal (minimum .300 in. thick with 4.625 in. bore) * Uses +.300 in. tall Gen VI style lifters. Modifications for Gen IV style are also available * Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to equalize temperatures * 4-bolt ductile iron main caps have splayed outer bolts for extra strength * True priority main oil system lubricates the main bearings before the lifters * Oil filter pad is drilled and tapped for an external oil pump * Lifter valley head stud bosses prevent blown head gaskets * Rear main cap uses standard oil pump and two-piece seal, no adapter required * Mechanical fuel pump boss, clutch linkage mounts, and side and front motor mounts simplify installation in chassis * Dual oil pan bolt patterns fit standard and notched oil pans * Coated cam bearings, freeze plugs and dowels not included * Small bore 396 version available

Not Yet Reviewed

$3,599.99

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.

Not Yet Reviewed

$12.99

Go Fast Bits DV Plus Diverter Valves with TMS Advantage

Go Fast Bits offers DV Plus Diverter Valves with TMS (Turbo Management System) Advantage for a wide range of vehicles, particularly imports. GFB's DV+ solution couldn't be simpler—keep what works and replace what doesn't. GFB expands the DV+ range with a direct-fit solution for the weak factory diverter valve used on many European vehicles. The solenoid coil itself from the factory-fitted valve is great (the ECU opens it faster than any pneumatic valve so why replace it?)—but the weak point is the valve mechanism itself. So GFB's DV+ solves this problem by replacing just the valve parts with an anodized billet aluminum housing fitted with a brass piston machined to exacting tolerances. The end result is sharper throttle response, lightning-fast valve actuation, and it will hold as much boost as you can throw at it. Other manufacturers' products involve replacing the entire system with a traditional pneumatic valve, requiring long vacuum hose runs, additional parts for tapping into the intake manifold vacuum—plus either a different solenoid valve to actuate the pneumatic valve, or a ballast resistor to plug into the OE wiring loom. All these additional items result in a product that is slower, less responsive, more expensive and takes much longer to install. GFB's DV+ solution on the other hand is more responsive, less expensive, easier to install, and doesn't cause compressor surge/turbo flutter. Order the model recommended for your vehicle. Additional notes: * Retains the factory solenoid coil for seamless integration * Replaces plastic valve parts with metal for reliability and strength on chipped engines * Exclusive "pilot-actuated" valve mechanism for rapid response at high boost

5.0 out of 5 stars ( 6 )

$173.70

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

$10.99

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

$4,610.99

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

BTR DOD Delete Plug Kits

BTR offers DOD delete plug kits that provide an easy way to get rid of pesky, failure prone DOD/AFM lifters in your LS/LT powered pickup truck. These plug kits include the necessary components to delete the problematic DOD system on your GM engine to remove the 8-cylinder AFM/DOD solenoids during a delete. From the F-body to Corvette, Sierra to Silverado, G8 to GTO, Brian Tooley Racing has just the components you need for making power with your LS or Gen V ride!

4.0 out of 5 stars ( 4 )

$24.99

Ford Performance Parts 351 Aluminum Windsor Engine Blocks

Ford Performance Parts 351 Aluminum Windsor engine blocks feature cast iron sleeves and are available in 9.2 in. or 9.5 in. deck heights. The 9.2 in. version of Ford's Z351 aluminum Windsor blocks is great for smaller displacement builds without the penalty of a taller deck. Both versions are cast from high strength 356-T6 grade aluminum and use splayed, 4-bolt, steel main caps on number 2-3-4 main bearings. The blocks are user friendly and designed to use conventional Windsor components like cams, timing chains, timing chain covers, oil pans, and oil pumps. With a weight of as little as 106 lbs., they can be nearly 90 lbs. lighter than an iron Ford Performance Parts BOSS 351 block. Additional features include: * 2-bolt main caps on number 1 and 5 main bearings * ARP studs on all inner main caps * ARP bolts on number 2-3-4 splayed outer positions * 4.110-4.115 in. bore as delivered--finish at 4.125 in. * 2.75 in. crankshaft main journal diameter (351C) * 2.9415-2.9425 in. diameter finished main bearing bore * Lifter bores finished 0.8753-0.8768 in. * 2.2032-2.2052 in. diameter cam bearing bores * Use cam bearing PN M-6261-J351 or M-6261-R351 * Wet sump oiling system * Maximum stroke 9.2 in. deck height: 4.000 in. * Maximum stroke 9.5 in. deck height: 4.250 in. * Weight 9.2 in. deck height: 106 lbs. * Weight 9.5 in. deck height: 118 lbs.

4.5 out of 5 stars ( 2 )

$6,496.99

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$6,509.99

Go Fast Bits External Wastegates

GFB offers a range of high-flowing external wastegates that are small—the most compact size in their class—but are big on flow! These external wastegates are built to cope with the extreme conditions and the harsh environment that's associated with high-boost and exhaust temperatures. Key features include: * Most compact wastegate range on the market for easy installation in tight locations * Body, valve, seat and all mounting hardware is CNC-machined from high-temp stainless steel * Actuator housing CNC-machined from billet 6061 aluminum * Nomex-reinforced silicone diaphragm * Internal shroud protects valve stem from excessive heat and prevents carbon-related sticking * V-band clamp mounting system * Made in Australia under ISO 9001

Not Yet Reviewed

$422.01

World Products Motown Race Engine Blocks

World's Motown blocks are without a doubt the most feature-laden, engine builder friendly, cast iron blocks on the market. And because of their superior temperature control and rock-solid stability, experts claim they're worth up to 20 hp more than other blocks on the market! At first glance, one of the more noticeable differences between the World Motown and OEM Chevy blocks are the 'bulges' at each cylinder. That's because the Motowns have thicker cylinder walls, and the water jackets have been expanded to provide required cooling. Order the model and options preferred for your application. Important features are as follows: * Made from high-density cast iron * 9.025 in. deck height with .600 in. minimum thickness * Dry sump valley scavenge lines drilled * Clearanced for 4.000 in. stroker crankshafts (H-beam steel rods) * Integral mounts for spin-oil filter * Dry sump systems can feed from front or rear of block * Available with 4-bolt nodular or splayed billet caps * Can be bored to 4.200 inch maximum * Water jackets expanded for better cooling * Standard Chevy cam location and cam bearings * OEM starter, fuel pump, and engine mounts (dual) * Blind tapped head bolt holes for extra integrity * 100 percent compatible with OEM parts * Indexed lifter bores (can use standard-height lifters) * Main caps are located by dowels (not OEM outside register) * Weight: Approximately 190 lbs.

4.0 out of 5 stars ( 1 )

$4,549.46

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$4,736.26

Dart SHP Special High Performance LS Next Pro Cast Iron Bare Blocks

Dart SHP Special High Performance LS Next Pro cast iron bare blocks continue the evolution of their LS Next platform with superior strength. With full skirt designs, priority oiling systems, and other excellent features, these SHP LS Next Pro blocks are the perfect upgrades for your factory LS blocks, as well as ideal starting points for drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts. Dart SHP LS Next Pro cast iron bare blocks feature: * Superior strength 220 BHN cast iron * Steel 4-bolt main caps with upgraded ARP main studs * Lifter oil crossover with restrictor provision * 6-bolt per cylinder capability * 4.000 in. up to 4.185 in. bore * Factory oil filter provision * 8-counterweight machining * Full skirt design * Priority main oiling * Siamese cylinder bores * Thick decks ensure reliable head gasket seal

5.0 out of 5 stars ( 1 )

$4,699.99

Dart LS Next Cast Iron Bare Blocks

Dart LS Next cast iron bare blocks integrate the robust heritage of a traditional Chevy small block with the performance potential of the late model LS engine architecture. The blocks are designed to rectify some of the former LS's more noticeable shortcomings on the bottom end—while still supporting high-flow and efficient cylinder heads developed for Gen III and IV platforms. They're available in multiple engine block styles, including stock/OEM standard deck and aftermarket. Dart LS Next blocks are back and better than ever! Highlight features of the LS Next cast iron bare blocks include: * Cast with premium cast iron alloy * Conventional style 4-bolt steel main caps * Full main webbing for maximum bottom-end strength * Extended cylinder barrels at the bottom to provide greater piston support for all combinations * Extra-thick Siamese cylinder bores * Blind head bolt holes don't go through into the water jacket * Provision for oil restrictors in the lifter valley * Revised low-restriction priority main oiling system * Pro-Stock/Pro-Mod big block style stepped main oil galley * External oil filter (must be used with stock or aftermarket oil pumps) * Dual starter mounts * Expanded water jacket on #1 cylinder for additional cooling capacity * LSX-style lifter bosses and dog bone provision are provided

Not Yet Reviewed

$3,999.99

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$4,499.99

ATK High Performance GM 350 Vortec Bare Blocks

ATK High Performance Engines offers GM 350 Vortec bare blocks with the following specifications: * Block: 100 percent new bare block with one-piece rear main seal * Bore: 4.000 in. (4.0003-4.0008 in. -- Pistons size vary, final honing may be required) * Maximum bore: 4.060 in. recommended * Displacement: 350 cu. in. * Main journal type: Chevy 350 * Engine block material: Premium iron alloy * Engine block style: Aftermarket, based off the Vortec 350 roller block * Engine block deck height: Standard deck * Engine oiling system: Priority main * Fuel pump boss: Yes * Main bolt style: 4-bolt * Main caps included: Yes * Main cap material: Cast iron * Main cap fasteners included: Yes * Main bearings included: No * Camshaft bearings: Dura-Bond, installed and clocked to OEM position * Freeze plugs: Brass, installed and sealed * Oil galley plugs: Installed and sealed * Roller camshaft compatible: Yes * Stroker clearanced: Yes, but the assembler must always check, as components differ

Not Yet Reviewed

$1,898.99

Dart Little M2 Small Block Chevy Cast Iron Bare Blocks

The Dart Little M is designed from the ground up as a true racing engine block which can be used with standard off-the-shelf small block components. These small block Chevy bare blocks are cast from premium high-strength iron and beefed up in all the critical areas. A competition oiling system ensures adequate lubrication to the main bearings at high RPM. Front and rear external oil feed, crossover and restrictor provision simplify plumbing with external pumps. Select from various options: * Chevy 350 or 400 main journal type * Aftermarket or stock/OEM standard deck style * Standard or tall deck height * Cylinder bore dimensions

Not Yet Reviewed

$3,799.99

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$6,934.99

Dart SHP Special High Performance Small Block Ford Cast Iron Bare Blocks

Dart SHP blocks are tailored to the most popular performance and racing applications. So, when you want more than stock blocks can provide, the strong reliable design and plentiful features of Dart SHP special high performance Ford engine blocks offer the perfect base foundation to start your build. Key features of SHP small block Ford bare blocks are: * Brand new precision machined cast iron block * Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to equalize temperatures * Priority main oiling system directs oil to the main bearings first for more dependable lubrication * Available with 302 (8.200 in.) deck height or 351 (9.500 in.) * Provisions for OE roller lifters, dog bones and spider * Siamese bores 4.000 in. or 4.125 in. (unfinished) with extra thick cylinder walls * Extra thick decks ensure reliable head gasket seal * Blind tapped head bolt holes to prevent water leaks * Steel 4-bolt main caps on #2, 3 and 4 with splayed outer bolts. (2-bolt main caps on #1 and 5) * Can use most stock components and accessories

5.0 out of 5 stars ( 6 )

$2,699.99

Dart Big M2 Pro Series Big Block Chevy Cast Iron Bare Blocks

Dart engineered the Big M to be the strongest, most reliable, and easiest-to-build big block on the market. Dart Big M2 Pro Series big block Chevy cast iron bare blocks are designed from the ground up as a true racing engine block which can be used with standard off the shelf big block components. The Big M2 is cast from premium high-strength iron and beefed up in all the critical areas. A competition oiling system ensures adequate lubrication to the main bearings at high RPM. With deck heights from 9.600 in. to 11.100 in., a +.600 in. raised cam location, spread oil pan rails and bore sizes up to 4.600 in., the Big M Pro gives you the versatility to build a wide variety of engine combinations.

Not Yet Reviewed

$3,869.99

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$4,334.99

Dart Race Series Big Block Chevy Aluminum Bare Blocks

What makes the Dart Race Series big block Chevy aluminum bare blocks the top choice for serious competition engines? They're based on the Chevrolet big block V8 design, but with added features and Dart's implemented advanced engineering! Key features of these Dart Race Series blocks include: * Cast from virgin 355-T61 aerospace alloy for strength * Ductile iron sleeves with extra thick cylinder walls promote excellent ring seal * Reinforcing ribs strengthen the lifter valley bellhousing flange * Inboard valley head stud bosses improve gasket sealing * Priority main oiling system delivers oil directly to the crankshaft bearings to enhance reliability at high engine speeds * Standard BBC cam journals, up to 60mm with raised cam options available * Standard .842 in. BBC lifter bores, other options available * Available with or without distributor provision * Steel 4-bolt main caps with splayed outer bolts for extra strength (light-weight aluminum caps also available) * Mechanical fuel pump boss, clutch linkage mounts, and side and front motor mounts simplify installation in chassis * Dual oil pan bolt patterns fit standard and notched oil pans

Not Yet Reviewed

$6,999.99