Availability
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.
( 87 )
$1,149.99
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$3,349.99
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.
( 33 )
$1,837.50
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$4,343.99
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 )
$113.90
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$373.89
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.
( 127 )
$1,851.99
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$3,420.99
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 )
$2,179.99
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$2,789.99
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
$262.10
S&S Cycle Shovelhead cylinder sets for Big Twin engines are available in different sizes. They are made from high-strength engineering-grade gray cast iron with a durable powdercoat finish for excellent wear resistance. Select the cylinder set designed for your motorcycle engine.
Not Yet Reviewed
$1,599.95
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$1,699.95
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
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$2,449.95
The S&S Cycle 98 in. big bore cylinder kits for a Harley-Davidson® motorcycle can provide significant benefits, especially for riders seeking more acceleration and pulling power. The larger cylinder bore can dramatically increase engine displacement, resulting in a noticeable boost in horsepower and torque, particularly in the low and mid-range power bands, making for a more powerful and responsive ride, while often still maintaining compatibility with stock cylinder heads and requiring minimal modifications for installation. Many big bore kits are designed as "bolt-on" options; meaning they can be installed without extensive modifications to the existing engine, making them a popular choice for Harley® enthusiasts. 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. After the big bore kit install, proper tuning with adjustments to fuel injection settings, as well as the ignition timing may be necessary.
Not Yet Reviewed
$2,499.95
In most cases, it just isn't worth it to try to rebuild your old, cracked, worn-out cylinder heads or to bore the stock cylinders again. S&S Cycle 74 In. Shovelhead top end kits provide everything you need to replace the top end. Pistons are pre-fit to the cylinders, so there is no machine work done and very little down time. Compression pistons come complete with rings and wrist pins, manifold clamps seals, all required hardware, and gaskets. You can't go wrong with these kits. When it comes to reliability and durability, you need quality parts. Fit and quality mean life for your Harley®!
Not Yet Reviewed
$2,816.06
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
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$3,459.99
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
S&S Cycle's 96 in. big bore cylinder kits for a Harley-Davidson® motorcycle provides significant benefits by increasing the engine displacement, leading to noticeable power gains, particularly in the low and mid-range torque, resulting in better acceleration and improved overall performance, especially for riders looking for a more powerful ride without drastically altering the engine character. The larger cylinder bore displaces more air, allowing for more fuel to be burned, generating more power throughout the powerband, especially noticeable during acceleration. Big bore kits tend to focus on increasing low and mid-range torque, which is beneficial for everyday riding and pulling heavy loads. With a larger cylinder volume, the engine can react quicker to throttle inputs, leading to a more responsive feel. Compared to other performance modifications, a big bore kit can be a relatively straightforward upgrade, often requiring minimal additional changes to the engine. One of these S&S Cycle 96 in. big bore kits can be a great starting point for further performance upgrades like camshaft changes, ported heads, and upgraded intake systems to maximize power gains.
Not Yet Reviewed
$2,549.95
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
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