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Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your...
Welcome to your headquarters for horsepower—the place to get everything you need to build real power and performance! We’ve got competition-proven crate engines, performance-matched top end kits, and complete rotating assemblies from the biggest names in the industry. You can add a set of high-flow cylinder heads to your powerplant, upgrade your valvetrain, improve your oiling system, or drop in a new set of pistons. We also have a complete selection of crankshafts, connecting rods, harmonic balancers, pulleys, and engine brackets. We even have everything you need to restore the horsepower that time has stolen from your daily driver.
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Summit Racing™ adjustment rod assemblies are constructed of durable, long-lasting cadmium plated steel and are available in a variety of lengths for your specific auto applications. Shop Summit Racing™ parts for outstanding performance, value, and quality.
( 27 )
$30.99
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$46.99
March Performance universal adjustment rod assemblies can be used just about anywhere. They include a stainless steel adjustment spacer and high performance rod ends with jam nuts. The rod assemblies are available in different lengths to fit your application.
( 8 )
$42.99
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$45.50
Summit Racing™ Pro LS 6.0L forged rotating assemblies provide industry-leading fit, finish, and durability at an affordable price. These kits are tested to over 1,200 hp in turbo applications. They're available in a wide range of fitment and performance options. Standard features and specs may include: * 4340 forged steel crank * Core hardened to optimum strength, tempered, and nitride hardened * Lightening rod journals, gun-drilled mains, and profiled counterweights for better engine acceleration * Maximum journal tolerances of +/- .0001 to ensure consistent bearing clearance * Straight-shot oiling for maximum oil film strength at the maximum load angle * 4340 forged H-beam connecting rods * Designed for 5,000 ft./min. average piston speed in street and drag applications * 7/16 ARP 2000 rod bolts with 200,000 psi tensile strength; dual ribbed caps for maximum strength * Added stroker clearance and balanced to within +/- 1 gram per end * Full-floating and precision-honed in the USA to +/- .0001 in. * 2618 forged aluminum pistons * Ultra-modern 2618 alloy forgings for boost and nitrous with maximum ring land thickness * Pressure-fed pin oiling with durable chromium steel wrist pins * Specially profiled and coated piston skirts for stroker applications with tight piston-to-wall clearance * Generous valve reliefs for extra piston-to-valve clearance accommodate cathedral and rectangle heads * Premium steel piston rings * Steel top rings designed for maximum life with boost and nitrous * File-fit rings for maximum ring seal, reduced friction, and tensions optimized for wet sump engines * Martensitic ductile Napier-hook second rings for strength and maximum oil control * Premium main and rod bearings * Clevite H-bearings are designed for high-rpm operation in racing applications * Tri-metal bearings designed with high bearing crush for maximum retention * Medium eccentricity shells with precision wall tolerance of +/- .00015 in.
( 8 )
$2,514.87
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$2,803.87
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.
( 88 )
$1,187.99
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$2,736.99
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.
( 34 )
$1,683.50
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$3,539.99
Eagle street performance rotating assemblies offer the perfect balance of strength, performance, reliability, and affordability. They include a cast steel crankshaft, Eagle "SIR" I-beam connecting rods, Silv-O-Lite claimer pistons, Perfect Circle rings, and Performance Street bearings. The kits are only available balanced. Eagle street performance rotating assemblies are the perfect choice for engines up to 500 hp. Order the model designed for your year, make, and engine application.
( 23 )
$1,149.99
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$1,440.99
Scat engine rotating assemblies are available with either a high-quality Scat forged 4340 crankshaft or Scat's Series 9000 cast crankshaft, plus I-beam or H-beam connecting rods with 7/16 in. or 3/8 in. cap screw bolts. For maximum power and reliability, Scat adds rod and main bearings from King, Federal Mogul, or Clevite 77, depending upon the application—and pistons and piston rings made by such well-known manufacturers as SRP/JE, Ross, KB, Mahle, Diamond, and Probe. Kits with cast and standard forged pistons have standard rings; kits with premium forged pistons have file-fit rings. Nearly 800 Scat kits are available; order the package tailored for fitment with your engine application.
( 128 )
$1,436.99
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$3,116.99
Summit Racing™ Pro LS 6.2L forged rotating assemblies provide industry-leading fit, finish, and durability at an affordable price. These kits are tested to over 1,200 hp in turbo applications. They're available in a wide range of fitment and performance options. Standard features and specs may include: * 4340 forged steel crank * Core hardened to optimum strength, tempered, and nitride hardened * Lightening rod journals, gun-drilled mains, and profiled counterweights for better engine acceleration * Maximum journal tolerances of +/- .0001 to ensure consistent bearing clearance * Straight-shot oiling for maximum oil film strength at the maximum load angle * 4340 forged H-beam connecting rods * Designed for 5,000 ft./min. average piston speed in street and drag applications * 7/16 ARP 2000 rod bolts with 200,000 psi tensile strength; dual ribbed caps for maximum strength * Added stroker clearance and balanced to within +/- 1 gram per end * Full-floating and precision-honed in the USA to +/- .0001 in. * 2618 forged aluminum pistons * Ultra-modern 2618 alloy forgings for boost and nitrous with maximum ring land thickness * Pressure-fed pin oiling with durable chromium steel wrist pins * Specially profiled and coated piston skirts for stroker applications with tight piston-to-wall clearance * Generous valve reliefs for extra piston-to-valve clearance accommodate cathedral and rectangle heads * Premium steel piston rings * Steel top rings designed for maximum life with boost and nitrous * File-fit rings for maximum ring seal, reduced friction, and tensions optimized for wet sump engines * Martensitic ductile Napier-hook second rings for strength and maximum oil control * Premium main and rod bearings * Clevite H-bearings are designed for high-rpm operation in racing applications * Tri-metal bearings designed with high bearing crush for maximum retention * Medium eccentricity shells with precision wall tolerance of +/- .00015 in.
( 3 )
$2,514.87
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$2,809.87
Start with the right foundation for your Blue Oval build--start with Ford Performance Parts 363 c.i.d. Boss short block assemblies. Build a powerful 8.2 in. deck engine for your vintage muscle, street rod, Fox body, or late model Mustang by starting with the same short block used in the 500 hp Z363 crate engines. These Ford Performance Parts Boss short block assemblies take the bore out to 4.125 in. for 363 stroked cubes of power. Plus, strength from within is provided by the forged crankshaft and I-beam connecting rods. Power your next project with Ford Performance Parts 363 c.i.d. Boss short block assemblies. Additional technical specifications: * Engine type: 302 based small block Ford * Bore x stroke: 4.125 in. bore x 3.400 in. stroke * Block: Boss 4-bolt main block M-6010-BOSS302 * Piston to Deck Height: .01 in." below deck (nominal) * Crankshaft: SCAT forged steel * Connecting rods: SCAT forged steel I-beam connecting rods with floating pins and ARP bolts * Pistons: Mahle forged aluminum, 1.5mm, 1.5mm, 3.00mm rings, valve reliefs for X306, X307, Z304DA, Z304P, N351, and other inline valve Windsor cylinder heads * Pistons designed for 20 degree valve angle heads and will fit stock or most spread valve guide centerlines; 6cc valve pockets, check piston to valve clearance * Compatible with most aftermarket performance cylinder heads * Designed for M-6049-X306//X307/Z304DA/Z304P and N351 cylinder heads. Not designed for production 302/351W or M-6049-Y302/Y303/X302/X303/X304/X305 cylinder heads * Hydraulic roller camshaft compatible * Recommended cylinder head fasteners M-6065-BOSS head bolts or M-6014-BOSS studs depending on application * Requires head gaskets M-6051-R351 * Internally balanced; requires "0" balance flywheel and damper * High performance harmonic balancer M-6316-D302 recommended * High-volume oil pump M-6600-D2 recommended * 302 bolt pattern oil pan and timing cover * Built with all new parts * Photo and specifications may vary
( 1 )
$6,005.99
Summit Racing™ Pro LS 5.7L forged rotating assemblies provide industry-leading fit, finish, and durability at an affordable price. These kits are tested to over 1,200 hp in turbo applications. They're available in a wide range of fitment and performance options. Standard features and specs may include: * 4340 forged steel crank * Core hardened to optimum strength, tempered, and nitride hardened * Lightening rod journals, gun-drilled mains, and profiled counterweights for better engine acceleration * Maximum journal tolerances of +/- .0001 to ensure consistent bearing clearance * Straight-shot oiling for maximum oil film strength at the maximum load angle * 4340 forged H-beam connecting rods * Designed for 5,000 ft./min. average piston speed in street and drag applications * 7/16 ARP 2000 rod bolts with 200,000 psi tensile strength; dual ribbed caps for maximum strength * Added stroker clearance and balanced to within +/- 1 gram per end * Full-floating and precision-honed in the USA to +/- .0001 in. * 2618 forged aluminum pistons * Ultra-modern 2618 alloy forgings for boost and nitrous with maximum ring land thickness * Pressure-fed pin oiling with durable chromium steel wrist pins * Specially profiled and coated piston skirts for stroker applications with tight piston-to-wall clearance * Generous valve reliefs for extra piston-to-valve clearance accommodate cathedral and rectangle heads * Premium steel piston rings * Steel top rings designed for maximum life with boost and nitrous * File-fit rings for maximum ring seal, reduced friction, and tensions optimized for wet sump engines * Martensitic ductile Napier-hook second rings for strength and maximum oil control * Premium main and rod bearings * Clevite H-bearings are designed for high-rpm operation in racing applications * Tri-metal bearings designed with high bearing crush for maximum retention * Medium eccentricity shells with precision wall tolerance of +/- .00015 in.
( 3 )
$2,541.87
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$2,804.87
Summit Racing™ Pro LS 5.3L forged rotating assemblies provide industry-leading fit, finish, and durability at an affordable price. These kits are tested to over 1,200 hp in turbo applications. They're available in a wide range of fitment and performance options. Standard features and specs may include: * 4340 forged steel crank * Core hardened to optimum strength, tempered, and nitride hardened * Lightening rod journals, gun-drilled mains, and profiled counterweights for better engine acceleration * Maximum journal tolerances of +/- .0001 to ensure consistent bearing clearance * Straight-shot oiling for maximum oil film strength at the maximum load angle * 4340 forged H-beam connecting rods * Designed for 5,000 ft./min. average piston speed in street and drag applications * 7/16 ARP 2000 rod bolts with 200,000 psi tensile strength; dual ribbed caps for maximum strength * Added stroker clearance and balanced to within +/- 1 gram per end * Full-floating and precision-honed in the USA to +/- .0001 in. * 2618 forged aluminum pistons * Ultra-modern 2618 alloy forgings for boost and nitrous with maximum ring land thickness * Pressure-fed pin oiling with durable chromium steel wrist pins * Specially profiled and coated piston skirts for stroker applications with tight piston-to-wall clearance * Generous valve reliefs for extra piston-to-valve clearance accommodate cathedral and rectangle heads * Premium steel piston rings * Steel top rings designed for maximum life with boost and nitrous * File-fit rings for maximum ring seal, reduced friction, and tensions optimized for wet sump engines * Martensitic ductile Napier-hook second rings for strength and maximum oil control * Premium main and rod bearings * Clevite H-bearings are designed for high-rpm operation in racing applications * Tri-metal bearings designed with high bearing crush for maximum retention * Medium eccentricity shells with precision wall tolerance of +/- .00015 in.
Not Yet Reviewed
$2,539.87
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$2,802.87
Melling oil pump screen assemblies are designed for use with your Melling oil pump. These replacement pickups have a built-in filter screen and are engineered to fit the stock pan and specs—and, in some cases, Street/Strip and Circle Track applications. Various installation methods are available, including bolt-in, press fit, and screw-in. Melling offers nearly 200 models; select the assembly tailored for fitment with your specific vehicle or engine.
( 378 )
$9.99
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$137.99
Milodon timing-gear drive assemblies are designed for all-out competition, but work equally well in any application. Their proven fixed idler gear system is capable of maintaining consistent cam timing without siphoning off power the way 4-gear types can. Timing changes are easy via Milodon's adjustable bolt pattern cam gears and hub assemblies. Made for strength and durability, these gear drives will last indefinitely. They are available in a flat-cover style, which uses a stock-type water pump, or an injected/blown style, which doesn't use a stock-type pump.
( 15 )
$499.95
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$924.95
Ford Performance Parts crankshaft damper assemblies will control crank twisting at all rpm, reducing valvetrain vibration and minimizing timing scatter. They're used on most Ford Performance Parts crate engines and are available for a variety of applications to suit your needs. Depending on application, features may include: * Billet steel construction, meets SFI 18-1 requirements * Elastomer-style harmonic vibration damper * Laser-etched timing marks and Ford Racing logo * Powdercoated finish * Removable weight that allows use as a neutral balance unit for internally balanced crankshafts * Passenger side 11 o'clock timing marks and drivers side 2 o'clock timing marks
( 16 )
$375.99
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$439.99
Quicksilver's long block assemblies are all-new (not rebuilt, remanufactured, or reconditioned) marine engines and feature improved components, technology, and built-in durability designed to withstand years of marine duty--one of the most abusive and demanding environments for any engine. The foundation of every Quicksilver long block engine is a new iron block cast to Quicksilver's specifications and designed expressly for marine duty. Thicker castings ensure quieter operation and better durability in saltwater when compared to a standard automotive block. They feature Black-X composite valves that contribute to a 42 percent reduction in valve wear compared to traditional stainless steel valves with hardened seats, while smooth-flowing cylinder heads deliver added performance. Quicksilver Value Series long blocks are cost-effective solutions when replacing an engine with a reliable fuel system and dress components that can be reused, typically when the original engine block has suffered freeze damage. Select the long block needed for your build.
Not Yet Reviewed
$5,324.99
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$8,429.99
Improve the performance of your engine with Briggs & Stratton piston assemblies. They include the piston, rings, and C-clips to restore your motor to peak performance. Briggs & Stratton piston assemblies are available in different bores to suite your needs.
( 1 )
$47.50
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$135.99
These Moroso oil pump pickup assemblies feature a screened opening that eliminates the need for a separate pickup tube. They also bolt to the bottom cover of any stock type oil pump. Oval track assemblies are specially offset to the passenger-side of the sump for optimum scavenging. All of the necessary hardware is included.
( 2 )
$42.99
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$249.99
On Sale
Holley LS tensioner assemblies are designed for use with all Holley passenger side LS accessory drive brackets. They include a 68mm grooved pulley and are made of high-quality materials to ensure long-lasting performance. If you're looking for a new tensioner assembly for your LS motor, Holley has the high-quality parts you can depend on time and time again.
( 7 )
$171.95
$126.95
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$193.95
Ford Performance Parts 289/302/351W X2 Street Cruiser aluminum assembled cylinder heads provide an easy way to bolt-on significant horsepower to your Street Cruiser package! Manufactured using all-new Ford tooling, and constructed using 356-T6 aluminum, each cylinder head is cast, precision machined, and assembled with premium components. The X2 heads also feature high-temperature exhaust valve seats, bronze guides, common rocker bosses for strength, and increased section thickness in critical areas for porting. Sold individually, two of these X2 Street Cruiser cylinder heads are required for you to complete your engine's horsepower upgrade. Additional features include: * Intake flows approximately 230 cfm at .600 in. lift (at 28 in. of H20) * Exhaust flows approximately 160 cfm at .600 in. lift (at 28 in. of H20) * Machined for 1.94 in. intake and 1.54 in. exhaust valve diameters * Use either GT-40 or aftermarket performance intake manifolds * Must check your intake manifold for port match; not all intakes are compatible due to the tall high-flow ports * Machined for AGSP-32C gasket seat spark plugs * Each head weighs approximately 25 lbs. less than each production cast iron head * Each head is leak-tested prior to assembly * Compatible with many aftermarket intake manifolds, headers, and valve train components * Includes Ford Performance intake valves, exhaust valves, and PAC 1219X Ovate Beehive valve springs * Features 10 degree locks, steel valve spring retainers, and stock valve seals * Features wider valve cover gasket sealing rail to prevent leaks * Compatible with all Ford Performance roller camshafts and aftermarket hydraulic roller camshafts up to .600 in. lift * Compatible with bolt-down rockers 1.6-1.7 ratio; always check rocker arm clearance to valve springs with production rocker arms * Depending on lifter preload, Ford Performance rocker shim kits * Use Fel-Pro exhaust gasket (part number 1415) * Designed to be used on Ford Performance BOSS blocks; M-6010-BOSS302, M-6010-B302BB, M-6010-BOSS35195, M-6010-BOSS35192 and M-6010-BOSS351BB * Use Ford Performance M-6065-BOSS headbolt set or Ford Performance M-6014-BOSS head stud kit * Use Ford Performance head gasket M-6051-CP331 or M-6051-S331—or, for "Big Bore" application, use M-6051-R351 * Must use Ford Performance M-6065-D289 headbolt kit to install heads on 289/302 production blocks * Does not fit 1986 5.0L with flat-top pistons unless pistons are notched for valve relief
( 6 )
$1,336.99
Eagle rotating assemblies can take a lot of worry out of your engine building project. Eagle's heavy-duty rotating assemblies consist of name-brand quality components for a wide range of engines at an affordable price. Perfect for the most extreme competition engines, including exotic fuels, heavy nitrous, and high boost, Eagle's HD rotating assemblies are equipped with Eagle's forged 4340 center-counterweighted crank (when available), forged H-Beam rods with ARP 2000 or L19 bolt upgrade and purpose-built heavy duty pistons. The pistons used in Eagle's heavy-duty assemblies are built for high boost levels or bucket-loads of nitrous. Every part is top-of-the-line and ready to support whatever you want to throw at it. Most all assemblies are available balanced or unbalanced if you'd rather your machine shop balance it. Along with crank, rods, pistons, every assembly includes bearings from either King or Clevite and rings suited to the intended application. Externally balanced assemblies balanced by Eagle will also include a harmonic damper and flexplate (or flywheel for some Fords) from Pioneer. Order the model designed for fitment on your year/make vehicle and engine application.
Not Yet Reviewed
$2,094.50
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$3,622.99
Melling oil pump/timing cover assemblies provide performance and a convenient solution for your engine repair and maintenance. Each high-quality, precision engineered unit combines the functions of an oil pump and timing cover, simplifying replacement and ensuring proper alignment and operation for both components. The assemblies are tested to meet or exceed original equipment specifications. Select the Melling oil pump/timing cover assembly designed for your vehicle.
Not Yet Reviewed
$174.99
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$390.99
Clearance
Summit Racing™ Forged Pro parts offer professional-grade parts at a good value. Proven reliable at big power, these rotating assemblies combine our forged 4340 steel cranks, forged 4340 steel H-beam rods (using ARP rod bolts), and advanced Forged Pro pistons. The assemblies are available balanced and unbalanced. Rod and main bearings, along with piston rings, are sold separately to optimize fitment around YOUR needs and budget. Check out our handy engine building tools, like dial-bore gauges and ring-filers, to make your next engine build a success and one you can be proud of!
Not Yet Reviewed
$2,654.99
$2,299.50
Mahle Original oil pump screen assemblies are an integral part of your engine's oiling system. They're manufactured to meet or exceed OEM standards to fit your vehicle without issue. The assemblies are available with a variety of tube diameters and pickup installation methods—such as bolt-in, press-fit, and screw-in. Order the model recommended for your vehicle and engine application.
Not Yet Reviewed
$38.99
Champ Pans dipstick assemblies are top-quality replacements for a variety of oil pans, including big and small block Chevys, and small block Chrysler and Ford applications—even big blocks with oil pans for industrial or marine use. The dipsticks are machined from steel with a chrome handle finish, and the tube is included. Order the dipstick assembly recommended for your specific Champ oil pan.
( 7 )
$24.87
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$30.24
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