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CHEVROLET Chevy big block Mark IV Engines & Components

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Results 1 - 24 of 61

On Sale

Holley Mid-Mount Complete Accessory Systems

Holley Mid-Mount complete accessory systems achieve what no other accessory bracket systems do--eliminate the brackets! This pulls in all the accessories tighter than other accessory drives by bolting directly to other components for a clean, integrated form. They offer superb engine visibility to show off your horsepower, not your accessories. Holley Mid-Mount complete accessory systems are available in several versions and finishes to match your application. Order the kit designed to fit your engine.

4.61 out of 5 stars ( 104 )

$1,999.95

$2,149.95


$1,798.95

$1,933.95

BluePrint Engines Pro Series Chevy 540 C.I.D. 670 HP Dressed Long Block Crate Engines

Enter the realm of pavement-grinding power with the BluePrint Pro Series Chevy 540 c.i.d. dressed long block crate engines. These 670 hp powerhouses feature a 30-month/50,000-mile warranty and they are the perfect choice for drivability and reliable high-end performance. Additionally, these assemblies are manufactured under strict tolerances and provide outstanding, consistent results. All of the rotating assemblies are balanced within 2 grams on a computerized balancer. BluePrint Pro Series crate engines are also dyno-tested and include the dyno sheets. For high-horsepower, big displacement engines, BluePrint Pro Series Chevy 540 c.i.d. dressed crate engines are the way to go! Features include: * New BluePrint Block * 4 bolt mains * Forged crankshaft * Forged connecting rods * Hydraulic roller camshaft - Lift = 0.647 in. / 0.647 in. - Duration @ 0.050 in. = 248 / 254 degrees - Lobe Separation = 112 degrees * Double roller timing chain * Aluminum cylinder heads * Carburetor * Billet distributor

5.0 out of 5 stars ( 3 )

$14,049.00

Eagle Street and Strip Rotating Assemblies

Eagle Street and Strip rotating assemblies consist of name-brand quality components for a wide range of engines at an affordable price. These kits feature a crankshaft, pistons, piston rings, rod and main bearings, and connecting rods. Based on your application, balanced assemblies are also available. Order the model designed for fitment on your year/make vehicle and engine application.

4.43 out of 5 stars ( 88 )

$2,229.99

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 )

$3,399.99

Eddie Motorsports S-Drive Serpentine Pulley Drive Systems

Eddie Motorsports S-Drive serpentine pulley drive systems are the latest advancement in engine accessory kits on the market. These drive system pulleys and brackets are CNC-machined from 6061 T-6 aluminum and include stainless steel fasteners, as well as other necessary accessories: water pumps, alternators, serpentine belts, A/C compressors and tensioners. Change the efficiency of your engine with a single 6-rib serpentine belt to drive all of your accessories. Note: Not for applications with VVT.

4.16 out of 5 stars ( 19 )

$2,825.00

Callies Compstar Crankshafts

You're installing value without compromising quality with Callies Compstar crankshafts. Finished and inspected by Callies, Compstar cranks maintain proper geometry and design. Hardened with deep nitride, They're ideal for all types of abusive racing environments and available in a wide variety of strokes and journal sizes to fit most common cubic inch requirements. All rod journals are drilled and counterweights are profiled for piston clearance. Sometimes you need to race within a budget, but with Callies' consistent grind and polish, as well as their precise stroke and index, you don't need to compromise on quality. Choose Callies Compstar crankshafts--they're better by design.

4.6 out of 5 stars ( 10 )

$1,051.00

Edelbrock Total Power Package 540 HP Big Block Chevy Top-End Engine Kits

Edelbrock Power Package concept is second to none. To make things easier in parts selection, Edelbrock has taken the guesswork out of top-end component selection by actually placing the power package components together in complete kits. They include almost everything you need to make serious horsepower. These kits are available with different cams, intakes, and heads to deliver the torque and horsepower you're looking for. Horsepower output will vary depending on combinations of accessories used.

3.78 out of 5 stars ( 18 )

$4,302.95

$5,598.95

Billet Specialties Tru Trac Serpentine Systems with A/C

Billet Specialties Tru Trac serpentine systems with A/C feature easy, straightforward assembly—with no spacers or washers to fool with. The entire Tru Trac systems are designed to mount to the engine block to allow for any cylinder head/intake configuration. All hardware and fasteners are included in each kit to complete the install. Tru Trac serpentine systems with A/C include: * Powermaster 170 amp 1-wire alternator * Billet aluminum alternator fan and pulley * Edelbrock water pump * Billet aluminum water pump pulley * Billet aluminum bridge bracket * Patent-pending billet aluminum tensioner engineered specifically for each Tru Trac serpentine system * Billet aluminum tensioner pulley * Billet aluminum crankshaft pulley * Polished ARP 12-point stainless steel fasteners * Goodyear Gatorback 6-rib serpentine belt * Comprehensive installation manual * Polished Sanden SD-7 A/C compressor * Polished billet aluminum A/C compressor clutch cover * Polished billet aluminum A/C compressor manifold

4.6 out of 5 stars ( 20 )

$2,549.95

On Sale

AFR 345cc Magnum BBC Cylinder Heads

If huge horsepower is what you're searching for, then AFR 345cc Magnum BBC cylinder heads will certainly deliver. They're recommended for radical street/strip, Pro Street, or racing applications on engines up to 572 cu. in. operating below 7,000 rpm—and are capable of flowing 400 cfm at 0.700 in. of lift. These A356 aluminum heads are designed for maximum horsepower and rpm capability, with an average primary operating range of 3,500-8,000 rpm; they also provide impressive torque figures. AFR recommends the use of .120 in. wall pushrods and full-roller rocker arms for strength. It's vital that you check clearance of all moving parts due to the vast array of rocker arms, lifters, cams, springs, etc. Don't forget to check pushrod-to-head clearance, as well as any potential interference from your rocker arms and spring assemblies prior to final engine assembly. AFR 345cc Magnum BBC cylinder heads come standard with AFR's trademark 3/4 in. thick cylinder head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.300 in. intake and 1.880 in. exhaust valves.

4.0 out of 5 stars ( 4 )

$4,050.90


$3,848.45

March Performance Style Track Serpentine Systems

March Performance Style Track serpentine systems are created with a combination of high style and low price that will find favor among car enthusiasts everywhere. The systems have a unique, easy-to-use belt tension adjustment tool. Once the belt tension has been set, the adjustment tool is easily removed and stowed away until the next time that the belt requires adjustment. Nearly 150 models are available, designed for fitment on specific applications. Assembly options include with or without power steering pump or A/C compressor; crankshaft pulley finish; bolt hole quantity; and water pump material. Order the replacement serpentine system recommended for your vehicle.

3.9 out of 5 stars ( 52 )

$1,885.99

$2,539.99

On Sale

AFR 385cc Magnum BBC Competition Racing Heads

AFR 385cc Magnum BBC competition racing heads will feed your large displacement, high-rpm race engine the air it needs to deliver monster performance. The 385cc Magnum features AFR's trademark .750 in. thick head deck, A356 aluminum castings and Titanium retainers, as well as 100 percent CNC-ported intakes, exhausts, and combustion chambers to deliver the big flow characteristics to provide you with the power you need to win! Keep your monster engine both strong and powerful—allow it to feast on the plentiful airflow of the AFR 385cc Magnum BBC competition racing heads.

Not Yet Reviewed

$5,344.50


$5,077.75

Eagle Forged 4340 Steel Crankshafts

Eagle forged 4340 steel crankshafts are great for high performance applications. They feature non-twist forging, undergo a multi-stage heat-treatment process, and are stress-relieved and shot-peened. These cranks are X-rayed, magnafluxed, and sonic-tested, so you know you're getting a top-quality piece. Each crankshaft has chamfered oil holes for improved oiling, a .125 in. radius on rod and main journals for increased strength, and the journals are precision-ground and micro-polished to less than 5 R.A. A target bob weight of +/- 2 percent greatly reduces balancing time. Many options are available; order the model recommended for your year/make and engine application.

4.4 out of 5 stars ( 53 )

$982.99

$1,135.99

Eagle Competition Rotating Assemblies

Eagle competition rotating assemblies consist of name-brand quality components for a wide range of engines at an affordable price. Depending upon your selection, these kits may feature a crankshaft, pistons, piston rings, rod and main bearings, or connecting rods. Balanced assemblies are also available. Order the model designed for fitment on your year/make vehicle and engine application.

4.53 out of 5 stars ( 34 )

$2,779.99

$3,129.99

Vintage Air Chevy Front Runner Engine Drive Systems

Vintage Air has all-in-one Front Runner engine drive systems for your small block and big block Chevy! With their focus on performance, Vintage Air engineered their Chevy Front Runner systems to be compact, strong, and good-looking. These drive systems are available for power steering with or without pump and non-power steering applications. Vintage Air Chevy Front Runner engine drive systems utilize a spring-loaded tensioning system for no-nonsense, trouble-free operation and may include: * CNC-machined billet truss-type mounting bracket * High performance water pump * Delphi-Saginaw power steering pump * 140 amp alternator * Optimized-ratio pulleys * ARP hardware * Dayco serpentine belt and OEM tensioner * Compressor clutch and tensioner covers

4.86 out of 5 stars ( 44 )

$2,784.99

$2,922.99

VEGE Remanufactured Long Block Crate Engines

VEGE remanufactured long block crate engines are an excellent foundation for budget-minded builds. These premium-quality refurbished engines are drop-in replacements for a wide range of stock vehicles—and can be retrofitted into additional applications. Each engine is reverse-engineered to ensure that any original defects are removed. Certified technicians recondition the long blocks to factory specifications, replacing wearable parts or machining them back to OE standards. The engines are thoroughly tested and calibrated to deliver maximum performance and long-term durability. Order the VEGE remanufactured crate engine recommended for your vehicle.

3.79 out of 5 stars ( 73 )

$3,049.99

$3,335.99

Eagle Cast Steel Crankshafts

Eagle cast steel crankshafts are the most dependable option when you don't want to break the bank. Each crank is inspected for dimension, size, and stroke accuracy. For improved efficiency and reliability, they have a journal finish of 6 R.A. or less and a target bob weight of +/- 2 percent for easy balancing. The crankshaft is the heart of your engine, so demand the best—order the Eagle Specialty model and performance options recommended for your vehicle year, make, and engine application.

4.43 out of 5 stars ( 190 )

$329.99

Callies Magnum Crankshafts

Race smart with Magnum durable competition crankshafts from Callies. Manufactured from ultra-pure AISI 4340 steel, these cranks are subjected to multiple heat treatments, giving them unsurpassed wear and strength characteristics. With their gundrilled mains and fully profiled counterweights, you may choose from an available selection for a variety of engine types. You just can't beat the proven reliability and value of Callies Magnum crankshafts.

5.0 out of 5 stars ( 2 )

$3,124.00

$3,391.00

Summit Racing™ Cast Crankshafts

Summit Racing™ cast crankshafts are perfect for mildly built street engines or just to replace stock crankshafts that have seen better days. These cast crankshafts are precision-ground and micro-polished to exacting tolerances. Order the Summit Racing™ cast crankshaft in the application that you need.

4.09 out of 5 stars ( 46 )

$364.99

Scat Forged Standard Weight Crankshafts

Scat forged standard weight crankshafts are designed for street or race engines with substantially increased horsepower. These crankshafts are precision-ground, heat-treated, shot-peened, inspected, and micro-polished for superior tolerance control. Scat crankshafts are also nitride-hardened for superior wear resistance, have straight-shot and chamfered oil holes, and feature lightening holes in all rod throws. They also have a large radius on all journals for improved strength and wear resistance. Scat forged standard weight crankshafts are available in dozens of sizes and configurations for fitment on vehicles spanning seven decades.

4.44 out of 5 stars ( 25 )

$949.99

$1,540.50

On Sale

Summit Racing™ Forged Crankshafts

Summit Racing™ forged crankshafts offer maximum strength and the best value for your dollar! Our crankshafts are non-twist forged from certified 4340 steel. They are put through several stages of heat-treatment, and then stress-relieved and shot-peened to provide the strength and reliability you demand for your high performance application. Each journal is micro-polished and a .125 in. radius is used for increased strength. Summit Racing™ forged crankshafts help you get the most in value and performance.

4.1 out of 5 stars ( 10 )

$1,029.99


$949.99

Scat Series 9000 Cast Pro Comp Stroker Lightweight Crankshafts

Do you want to increase cubic inches? Scat Series 9000 cast Pro Comp stroker lightweight crankshafts are the perfect solution for your mild or moderate street or race engine. These lightweight crankshafts are patterned after Scat's custom billets and are built from their exclusive space-age 9000 material. Features like Aero-wing counterweights, straight shot oil holes, and lightening holes in all rod throws (except for the 3.480 stroke) offer reduced windage and the ability to increase your horsepower. Scat cranks are precision-ground and micro-polished for a beautiful finish and a perfect fit. Stroke your engine with lightweight, state-of-the-art components from skilled craftsmen--Scat series 9000 cast Pro Comp crankshafts.

4.18 out of 5 stars ( 61 )

$483.99

$536.99

On Sale

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

$5,173.48


$3,457.82

$4,656.13

Manley Pro Series Crankshafts

Manley Pro Series crankshafts can make your short block bulletproof. They feature forged 4340 construction and undergo a multi-step heat-treatment process and are then nitrided for added strength. The crankshafts are stress-relieved, shot-peened, and magnafluxed. Manley Pro Series crankshafts have micro-polished large .125 in. radius journals, gun-drilled mains, and lightened rod journals for weight reduction. The counterweights are fully profiled and they are designed for internal balancing.

4.91 out of 5 stars ( 11 )

$1,042.34

PROMAXX Performance Maxx Series Big Block Chevy Cylinder Heads

PROMAXX Performance Maxx Series big block Chevy cylinder heads are custom designed to satisfy demands of the big block Chevy world, while retaining high-quality craftsmanship and reasonable prices. Available assembled or bare, these heads feature ultra-smooth 356 T-6 aluminum castings with hand-blended valve bowls, efficient chamber designs, 5-angle valve jobs, and diamond-honed bronze valve guides. Assembled heads include 21-4N swirl-polished valves, springs, retainers, 7/16 in. rocker studs, guide plates, and seals. Level up your ride with a pair of PROMAXX Performance Maxx Series big block Chevy cylinder heads.

Not Yet Reviewed

$1,807.00

$2,879.00

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