Availability
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.
( 24 )
$1,072.99
—
$1,440.99
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 )
$1,943.99
—
$3,599.99
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 )
$1,074.99
—
$2,999.99
As your number-one source for high performance, it only seems right to offer you these Chevy 350 engine kits. They feature Summit Racing™ brand components, matched for optimal performance by our tech experts, so you can get the rebuild components that you need without taking the time to do all of the research. These convenient, affordable kits are available with standard or oversize pistons and standard or undersize bearings. Each kit includes: * T5 heat-treated hypereutectic pistons * Cast iron rings * Bimetal main, rod, and cam bearings * Brass freeze plugs * High-volume iron oil pump * Gaskets * Plastigage and assembly lube
( 13 )
$470.90
—
$487.90
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.
( 129 )
$1,019.99
—
$4,561.99
As your number-one source for high performance, it only seems right to offer you these re-ring kits. They feature Summit Racing™ brand components matched for optimal performance by our tech experts, so you can get the rebuild components that you need without taking the time to do all of the research. These convenient, affordable kits are designed to work with standard or oversize pistons and standard or undersize bearings.
( 41 )
$131.96
—
$134.96
These Summit/Federal Mogul Premium engine rebuild kits will make your performance rebuild easy and inexpensive. Everything you need is in one affordable package. They're available with or without pistons (cast, hypereutectic, or forged, depending on the application), chromoly faced compression rings, and exclusive SS-50 oil control rings, as well as main, cam, and rod bearings. Various oil pump configurations are available, depending on the applications, along with top-quality gaskets and freeze plugs.
( 5 )
$569.92
—
$863.92
Federal Mogul engine re-ring kits can make your rebuild easy and inexpensive. If your present pistons are in good shape and you don't need cam bearings or an oil pump, then these kits are ideal. They include regular or moly rings, rod bearings, a gasket set, and main bearings. Some kits are also available without main bearings. Please verify all oversizes before ordering. Select the set recommended for your vehicle make and engine application.
( 91 )
$126.90
—
$497.96
These Summit Racing™ Chevy 350 engine kit Pro Packs give you virtually everything you need to assemble your Chevy 350. Features include: * Your choice of forged, hypereutectic, cast, or no pistons * Your choice of Summit Racing™ Stage I, Stage II, or no connecting rods * Available with or without Summit Racing™ Engine Shop cast, 2-piece, rear main seal crankshaft * Sealed power piston rings in your choice of standard, .020, .030, .040, or .060 * Rod and main bearings available in your choice of standard, .010, .020, or .030 * Sealed Power cam bearings * High-volume oil pump assembly with stock pickup welded to the pump * Summit Racing™ True Roller timing chain * Sealants, assembly lube, Plastigage, rod bolt boots, and freeze plugs
( 1 )
$408.84
—
$1,115.82
Eagle Pro Street rotating assemblies consist of name-brand quality components for a wide range of applications at an affordable price. These kits feature a crankshaft, pistons, piston rings, rod and main bearings, and connecting rods.
( 1 )
$1,709.99
—
$2,997.99
You're on your way to transforming that 350 block into a real ground-shaking 383. Finish it off with Summit Racing™ Chevy 383 engine kits and stay on budget. Summit Racing™ has done the homework and selected parts that will work together to produce the power that you want. These engine kits feature Summit Racing™ brand components, delivering high performance quality at a reasonable price. Chevy 383 kits include new hypereutectic pistons and a high-volume oil pump, as well as rings, bearings, gaskets, freeze plugs, Plastigage, and assembly lube. Make the most of those extra cubes and do it the smart way with Summit Racing™ Chevy 383 engine kits.
( 4 )
$482.90
—
$485.90
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
$3,119.99
—
$3,661.99
When it comes to building horsepower and torque, you need to start at the bottom and work your way up. Manley rotating assemblies are designed for performance enthusiasts wanting to get the most out of their engines. Their assemblies feature 4340 forged steel crankshaft and H-beam connecting rods, either 7/16 in. ARP 8740 cap screws with a 750 hp rating for LS engines/900 hp for big blocks, or optional ARP 2000 cap screws for up to 1,500 hp. They use 2618 Platinum Series forged aluminum pistons, chromoly premium wrist pins, Total Seal piston rings, and Clevite "H" Series narrowed rods and "P" or "H" Series main engine bearings. Building high-horsepower performance engines takes a lot of thought and all the right parts. Start off right with Manley rotating assemblies.
( 3 )
$2,608.42
—
$3,856.14
Top-end rebuilds can help to improve the performance of your ride, and Namura Technologies top-end repair kits will keep your ATV, UTV, or off-road motorcycle running in peak condition! They include everything you need: pistons, top-end gasket kit, and wrist pin bearings (where applicable) in one convenient, time-saving package. Namura kits are available for a wide variety of makes and models, with specific bore and compression ratio parts to service your specific vehicle. Choose to do your rebuild with repair kits from Namura Technologies—the people who make pistons with attitude!
( 2 )
$55.99
—
$64.99
Eagle forced induction competition rotating assemblies consist of name-brand quality components for a wide range of applications 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.
Not Yet Reviewed
$3,089.99
—
$3,553.99
Summit Racing™ SBC crate engine startup kits have assembled all of the gaskets, fluids, and extra parts typically needed to set up a new engine.The small block Chevy kits will save you time and money. These kits include: * Oil filter * Oil dipstick * Intake gasket set * Water pump gasket set * Water neck gasket * RTV silicone * Exhaust manifold gasket set * Oil filter adapter * Break-in motor oil (five quarts) * Dex-Cool coolant (two gallons)
Not Yet Reviewed
$267.02
Eagle Racesaver rotating assemblies are designed specifically for use in 305 Racesaver competition. Assemblies include crankshaft, rods, pistons, rings, and bearings. Select the Racesaver assembly needed for your build.
Not Yet Reviewed
$1,969.99
—
$2,579.99
S&S Cycle's 88 in. big bore kits provide significant benefits by increasing the engine displacement, resulting in more power and torque, especially noticeable in the low to mid-range powerband, while generally maintaining the stock engine character and rideability; essentially giving the bike a stronger punch with increased acceleration without drastically altering its feel. The larger bore size allows for more air and fuel to be ingested per combustion cycle, leading to a noticeable boost in power output, particularly in the low and mid-range rpm bands. For riders who frequently haul loads, the increased torque can be beneficial for pulling heavier trailers or carrying extra cargo. Many 88 in. big bore kits are designed to work with mostly stock components, requiring minimal additional engine modifications for installation. Compared to other performance upgrades like high-lift cams or forced induction, a big bore kit is often considered a cost-effective way to significantly increase engine power. After installing a big bore kit, proper engine tuning with adjustments to the fuel injection or carburetor settings is crucial to optimize performance and ensure efficient combustion. Select the S&S Cycle big bore kit specifically designed for your HD® model and year.
Not Yet Reviewed
$1,999.95
The S&S Cycle 74 inch stock bore cylinder kits are intended to replace worn cylinders and pistons of a 74 in. Shovelhead engine for a Harley-Davidson® motorcycle and keep stock compression ratio of 8:1. The primary purpose of these S&S Cycle stock bore cylinder kits is to maintain the original "74 cubic inch" displacement of older Harley-Davidson® engines, essentially allowing for a rebuild, while also keeping the engine size the same without increasing the bore size beyond the standard dimensions for a 74 cubic inch engine.
Not Yet Reviewed
$2,295.95
The S&S Cycle 3 7/16 in. bore cylinder kits provide a significant increase in engine displacement, resulting in more power and torque, especially noticeable in the low and mid-range powerband, making for a more potent and responsive riding experience, particularly for cruising and pulling heavy loads. The larger bore allows for more air and fuel to be drawn into the cylinders, leading to a substantial power increase. With more power, the motorcycle will accelerate quicker and more forcefully. This is especially beneficial for riders who frequently ride in stop-and-go traffic or need extra pulling power for towing. A larger bore can be combined with other performance upgrades like high-lift cams, larger carburetors, and upgraded exhaust systems to further enhance power gains. Proper tuning is essential after installing a big bore kit to ensure optimal performance and avoid potential issues. Before ordering, make sure this cylinder kit is compatible with your specific Harley® model/year.
Not Yet Reviewed
$1,999.95
The S&S Cycle 80 in. stock bore cylinder kits for a Harley-Davidson® offers the benefit of maintaining the original engine characteristics while providing a reliable and readily available replacement option. Unlike "big bore" kits which enlarge the cylinder diameter to increase engine displacement and horsepower, a stock bore kit simply replaces worn cylinders with new ones of the same size. These stock bore cylinder kits are ideal for situations where you need to rebuild the engine without significantly altering its power delivery or overall performance, while still achieving a quality repair. If your Harley® engine needs a rebuild due to wear and tear, the S&S Cycle 80 in. stock bore cylinder kits are a good choice to restore the engine to its original functionality. Select the S&S Cycle big bore kit specifically designed for your HD® model and year.
Not Yet Reviewed
$2,349.95
S&S Cycle's 93 in. big bore cylinder kits can provide significant benefits by increasing engine displacement, resulting in noticeable gains in horsepower and torque, particularly in the low to mid-range powerband, making for a more powerful and responsive ride with improved acceleration, while often being considered a relatively easy bolt-on upgrade that doesn't require major engine modifications. The larger cylinder bore allows for more air and fuel to be ingested during each combustion cycle, leading to a substantial increase in horsepower and torque. With more power available, the motorcycle will accelerate quicker and more readily, especially in everyday riding situations. While there may be a slight decrease in fuel efficiency due to the increased displacement, it is often negligible compared to the performance gains. To maximize the benefits of a big bore kit, it is often recommended to upgrade other engine components like the camshaft and intake system to optimize airflow and further enhance performance. Depending on the specific big bore cylinder kit and your bike's engine configuration, proper tuning with a power commander or similar device may be necessary to ensure the engine runs efficiently with the increased displacement.
Not Yet Reviewed
$2,349.95
—
$2,449.95
S&S Cycle offers 93 in. Sidewinder Big Bore Stroker kits for a variety of Harley-Davidson© street bikes from the 1970s and '80s. They're an economical route to a larger displacement engine. These kits contain nearly everything needed to take a stock 74 in. or 80 in. H-D© shovelhead engine up to 93 in. displacement. They include S&S 3 5/8 in. bore high tensile cast iron Sidewinder cylinders and forged pistons with wristpin and rings, a 4 1/2 in. stroke dynamically balanced S&S flywheel assembly, complete with S&S heavy-duty connecting rods and mainshafts, S&S stainless steel headbolts, base nut, S&S adjustable chromoly steel pushrods, head gaskets, base gaskets, exhaust gaskets, and an S&S heavy duty-top motor mount. Kits are available with 8.5:1 or 9.1:1 compression.
Not Yet Reviewed
$3,795.95
S&S Cycle offers 96 in. Sidewinder Big Bore Stroker kits for a variety of Harley-Davidson© street bikes from 1970 and up. They're an economical route to a larger displacement engine. These kits contain nearly everything needed to take a stock 80 in. Harley-Davidson© Evolution Big Twin engine up to 96 in. displacement. They include S&S 3-5/8 in. bore aluminum Sidewinder cylinders and forged pistons, a 4 5/8 in. stroke dynamically balanced S&S flywheel assembly, complete with S&S heavy-duty connecting rods and mainshafts, head gaskets, base gaskets, and exhaust gaskets. Stock cases will need to be bored out to 3 5/8 in. Cylinders are available in a natural, gloss black, or wrinkle black finish.
Not Yet Reviewed
$4,499.95
Modal Header
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
