Availability
S&S Cycle offers MK136 Black Edition engines for a variety of Harley-Davidson© oil-cooled Touring street bikes from 2017 and up. Details include: CYLINDER HEADS: * High-flow cylinder heads with premium seats, guides, valves, springs, and seals * +1mm oversized intake and exhaust valves * Valves are .030 in. longer than stock for improved valvetrain geometry * .605" max lift valve springs * High-strength alloy used in cylinder head casting, improved strength at high temperatures * Enlarged cooling passage around the exhaust seats * S&S Exclusive breather boxes CRANKCASE: * All premium quality components * Patented dual-spray piston cooling jets * Precision-machined oil scraper * Enlarged oil sump * Contoured floor allows oil to easily drain back to the sump MK136: * Forged pistons * S&S performance oil pump and cam support plate * Premium tappets and tappet cuffs * Billet aluminum covers * Sprocket shaft spacer included * Champion spark plugs * Retains stock engine height * Includes cam cover badge * Powdercoat finish matches factory finish * Huge displacement increase means a huge power increase
Not Yet Reviewed
$11,999.95
S&S Cycle offers Power Tune XTO race-only mufflers for a variety of applications, including many Polaris UTVs from 2015 and up. Welcome to the new world order of high performance exhaust for the SxS space! A high-flow stainless muffler body is combined with dual exits, each containing a removable spark arrestor as well as tunable inserts. Both sound and power can be adjusted by changing the inserts. Wide-open on the trails? Put the 2.25 in. inserts in and let it breathe. Rock crawling in Low? Replace the inserts with 1.375 in. for maximum torque. Additional tuning inserts are also available. Additional product details: * Improved power and torque * Dual outlet and stylized tips * Removable spark arrestors * 304 stainless steel construction * Meets J335 Forestry Standards * Use with or without factory rear cover * Clears most aftermarket bumpers * Does not require ECU tuning
Not Yet Reviewed
$999.95
S&S Cycle offers MK-Series Performance crankcases for a variety of Harley-Davidson Touring and Softail street bikes from 2017 and up. These assembly replacements enable you to build massive power easily and reliably, particularly with M8 engines, and stock cases can't provide the necessary quality base. MK-Series crankcases are designed to allow for larger bores, scrape more oil than stock, have a larger volume sump, and fit in a stock frame without modification. Order the model recommended for your application.
Not Yet Reviewed
$2,499.95
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$2,849.95
S&S Cycle offers Power Tune XTO mufflers for a variety of applications, including many Polaris and Honda© UTVs from 2015 and up. Welcome to the new world order of high performance exhaust for the SxS space! A high-flow stainless muffler body is combined with dual exits, each containing a removable spark arrestor as well as tunable inserts. Both sound and power can be adjusted by changing the inserts. Wide-open on the trails? Put the 2.25 in. inserts in and let it breathe. Rock crawling in Low? Replace the inserts with 1.375 in. for maximum torque. Additional tuning inserts are also available. Order the muffler recommended for your off-road machine. Additional product details: * Tuning inserts allow for easy sound and power adjustment * Improved power and torque * Dual outlet and stylized tips * Removable spark arrestors * 304 stainless steel construction * Meets J350 Forestry Standards * Use with or without factory rear cover * Muffler clears most aftermarket bumpers * Does not require ECU tuning
Not Yet Reviewed
$1,176.95
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$1,285.95
S&S Cycle Super Stock alternator-style crankcases are perfect for stock replacement and high performance applications. Available in stock and different bore sizes, some are machined for the installation of a crank position sensor, but all are compatible with stock flywheel assemblies, primary covers, gear covers, and are clearanced for 38 amp alternator stators. Certain options may include the required hardware, fittings, and bearings, and may be offered in different finishes. Select the S&S Super Stock alternator-style crankcase designed for your motorcycle's engine.
Not Yet Reviewed
$1,799.95
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$1,899.95
The Twin Cam 88A crankcases from S&S Cycle provide a stronger, more reliable, and more durable foundation for the engine, particularly in high-performance applications, addressing weaknesses in the previous Evolution engine. The Twin Cam 88A is intended to replace crankcases in HD® Twin Cam 88 engines in existing HD® chassis only. S&S stock style crankcases have a rear motor mount that bolts directly to the stock 1999-2006 transmission for all models except 2006 HD® Dyna. Known for their strength and durability, these crankcases are compatible with the stock primary, charging system, and other stock components. Stock bore cases are perfect for replacement applications, 4 in. bore cases are a natural for use with the S&S Super Sidewinder Hot Set Up kits, and 4 1/8 in. bore cases make really large displacement custom engines possible and are available with the S&S cylinder stud pattern or with the stock cylinder stud pattern. The 4 1/8 in. bore cases with stock stud pattern are ideal for the S&S 124 in. Hot Set Up Kit for stock crankcases. Select the Twin Cam 88A crankcase designed specifically for your HD® bike model.
Not Yet Reviewed
$2,152.95
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$2,182.95
S&S Cycle 95 in. Super Stock Hot Set-Up Kits are true bolt-on kits. There is no machining required, they maintain stock engine height, and enable up to a 40 hp increase. Components and specs: * .045 in. MLS head gaskets * S&S 585 gear drive cams * S&S high-strength chromoly tubing pushrods * Enlarged valve pocket recesses in S&S pistons accommodate oversize valves and high-lift cams * S&S 3 7/8 in. bore cylinders and pistons * 79cc cylinder heads * Machined wrinkle black powdercoat finish
Not Yet Reviewed
$3,627.86
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
$2,795.95
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$4,499.95
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
Why rebuild that old stock Evo engine? Just replace it with S&S Cycle V-Series long block engines. These engines will save you unwanted down time and money by using your existing fuel or aftermarket ignition system. Tuning your carburetor or EFI system will be required, but definitely worth the extra effort. S&S Cycle V-Series long block engines are built using genuine S&S components, so you know this motor is built to last.
Not Yet Reviewed
$6,369.95
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$7,199.96
Go from mild to wild with S&S Cycle T-Series long block engines. These long block engines fit in the stock chassis and require no frame modifications. They feature S&S easy start camshafts, 3-piece heat-treated 4140 flywheel assembly, high-flow oil pump, and cam cover. Engines are protected by a super tough powdercoated finish, and are available in black wrinkle, stone gray, and black edition color schemes. Make your Dyna or tourer a stump puller with S&S Cycle T-Series long block engines.
Not Yet Reviewed
$9,699.95
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$13,678.97
S&S Cycle Super Stock T2 crankcases are stock looking, but stronger with thicker wall sections, superior 356 T-6 aircraft grade aluminum, and a tough powdercoat finish. Available in different bore sizes, as well as stock, each kit will include an S&S crankcase, bearings, hardware, and instructions. Select the one designed for your Big Twin engine. Additional features and notes: * Reinforced front motor mount for extra strength * Timken sprocket shaft bearing is strong enough for the most demanding applications * Clearanced for strokes up to 4 13/16 in. and cams up to .720 in. lift * Includes pinion and Timken bearing * Manufacturer's Statement of Origin (MSO) included * Studs and cam bearings installed * Stock bore and 4 1/8 in. bore cases come with dual piston cooling jets
Not Yet Reviewed
$2,199.95
S&S Cycle offers 103 in. Sidewinder Big Bore Stroker kits for a variety of Harley-Davidson© street bikes from the 1970s and '80s. These kits are an economical route to a larger displacement engine. They contain nearly everything needed to take a stock 74 in. or 80 in. H-D© shovelhead engine up to 103 in. displacement. Kits include S&S 3 5/8 in. bore high tensile cast iron Sidewinder cylinders and forged pistons with wristpin and rings, a 5 in. stroke small diameter 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. Compression is 9.7:1.
Not Yet Reviewed
$4,399.95
The S&S Cycle 124 in. big bore/stroker Hot Set-Up kits transform a stock Harley-Davidson® engine into a 124 in. monster. It includes: 4 1/8 in. bore pistons; big bore cylinders finished in wrinkle black powdercoat; a dynamically balanced 4 5/8 in. stroke 3-piece flywheel assembly complete with heavy-duty connecting rods and integral mainshafts; 640 gear drive Easy Start camshafts; chromoly steel adjustable pushrods; premium tappets; and Super Stock 91cc cylinder heads. When installed, the kits yield a 124 in. engine with a compression ratio of 11:1. Although the engine is .960 in. taller than stock, there are no frame clearance problems—and a stock EFI throttle body will fit, because the manifold mounting surfaces of the heads have been specially machined to fit a stock length manifold. If you ride a 2006 HD Dyna model, or a balanced or non-balanced Big Twin from 2007-17, these top-end engine rebuild kits are for you. Note: No fuel or ignition system is included. However, for the best results, a larger EFI throttle body, performance intake, and performance exhaust are recommended. The EFI system must be recalibrated. Although not mandatory, S&S recommends adding an oil cooler to bikes ridden in warmer climates. S&S does not recommend compression ratios higher than 10:1 for Tri Glide or other 3-wheel models (including conversions) due to extra loads caused by the lugging nature of these bikes. Detonation and subsequent engine damage may result.
Not Yet Reviewed
$5,636.66
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$6,128.06
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
Replace that worn out top end with S&S Cycle complete 80 in. top-end replacement kits for Big Twins with band-style heads. They include everything needed to totally replace the top end of your tired Shovelhead engine. The cylinder heads feature high-flowing ports and .590 in. lift capacity for improved performance and easy high-lift camshaft installation, while a moderate 8:1 compression ratio will allow your engine to run well on readily available premium pump gas. S&S Cycle 80 in. top-end kits contain S&S 3 1/2 in. bore high-tensile cast iron cylinders, 3 1/2 in. bore forged pistons, Super Stock cylinder heads, and all the gaskets and hardware necessary.
Not Yet Reviewed
$2,762.96
S&S V-Series engines for 1984-99 Big Twins are available as complete engines in a variety of displacements, depending on your horsepower needs. They are stock appearing, but feature updated internal components for improved performance and reliability. Choose from natural, as-cast aluminum, wrinkle black powdercoat, and Black Edition finishes. All S&S V-Series complete engines will bolt into your factory chassis and will include either a S&S Super E or G carburetor and Super Stock ignition.
Not Yet Reviewed
$7,329.95
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$8,099.96
S&S offers performance engines in a variety of displacements. S&S Cycle SH-Series engines for Shovelheads are no different. They offer a vintage vibe with modern muscle. These engines are stock appearing but feature updated internal components for improved performance and reliability. If you are building a custom framed bike or it is just time to upgrade that old engine, S&S Cycle SH-Series engines have what you are looking for.
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$9,199.95
S&S offers performance engines in a variety of displacements. S&S Cycle P-Series engines for Panheads are no different. They offer a vintage vibe with modern muscle. These engines are stock appearing but feature updated internal components for improved performance and reliability. If you are building a custom framed bike or it is just time to upgrade that old engine, S&S Cycle P-Series engines have what you are looking for.
Not Yet Reviewed
$10,199.95
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