Motorcycle Complete Engines

S&S Cycle®T111 Black Edition T111 Black Edition Long Block Engine (310-0834A)
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# mpn4841041252
T111 Black Edition T111 Black Edition Long Block Engine by S&S Cycle®. Why rebuild that old stock engine? Upgrade, and replace it with an all-new S&S® T111 engine. Get a 2-year warranty and a lot more power! S&S T111 engines are...
Use the fuel system and aftermarket ignition that you aready haveShort stroke produces less vibration and longer engine life
$7,822.95
S&S Cycle®T111 T111 Long Block Engine (310-0770A)
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# mpn4841041359
T111 T111 Long Block Engine by S&S Cycle®. A lot of riders have already invested in performance upgrades for their stock engine by the time they are ready to move up to a complete big inch engine. Wouldn’t it be nice to be able to...
No fuel system or ignition systems included - Use what you already haveSpecial Head machining – Fits stock length intake manifolds (S&S manifold size 410)
$7,461.95
S&S Cycle®T124 Black Edition T124 Black Edition Long Block Engine (310-0900A)
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# mpn4841041338
T124 Black Edition T124 Black Edition Long Block Engine by S&S Cycle®. S&S T124 engines are now available for 2006-17 Harley-Davidson® Dyna® models. (Silver finish and other displacements available by special order). The crankcases of...
Same awesome performance as all S&S T-Series enginesEngines sold without fuel or ignition systems
$8,183.95
S&S Cycle®T124 Black Edition T124 Black Edition Longblock Engine (310-0835A)
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# mpn4841041277
T124 Black Edition T124 Black Edition Longblock Engine by S&S Cycle®. Why rebuild that old stock engine? Upgrade, and replace it with an all-new S&S® T124 engine. Get a 2-year warranty and a lot more power! S&S T124 engines are perfect...
Large cooling fins- increase cooling efficiencyGloss black rocker covers, gear cover, tappet blocks and pushrod tubes
$8,183.95
S&S Cycle®T124 T124 Long Block Engine (310-0282A)
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# mpn4841041352
T124 T124 Long Block Engine by S&S Cycle®. A lot of riders have already invested in performance upgrades for their stock engine by the time they are ready to move up to a complete big inch engine. Wouldn’t it be nice to be able to...
No fuel system or ignition systems included - Use what you already haveSpecial Head machining – Fits stock length intake manifolds (S&S manifold size 410)
$7,581.95
S&S Cycle®T143 Black Edition T143 Black Edition Long Block Engine (310-1080B)
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# mpn4841041340
T143 Black Edition T143 Black Edition Long Block Engine by S&S Cycle®.
$1,876.95
S&S Cycle®V111 Black Edition V111 Black Edition Engine (310-0828)
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# mpn4871472853
V111 Black Edition V111 Black Edition Engine by S&S Cycle®. S&S V111 engines are perfect for applications that require great horsepower and torque, but not at the expense of dependability and engine life. They are similar to the V124...
Short stroke produces less vibration and longer engine lifeLarge cooling fins- increase cooling efficiency
$7,581.95

Even the most reliable engines have a limited lifespan. If the motor is not too old and can be repaired, it makes sense to restore it using an engine rebuild kit or some parts ordered individually. But in some cases, when mileage is high enough or there are critical damages, it can be more reasonable and less expensive to replace the whole motor. It’s a radical solution, but it will save you from endless repairs and unexpected breakdowns caused by various old parts whose service life has almost expired.

Apart from that, some aftermarket engine models offer a serious power increase over the stock motor, and their performance can be higher than that of the factory versions. For this very reason, it's recommended to install a high-performance clutch for some models. On our virtual shelves, you will find a broad assortment of American-made motorcycle motors sourced from specialized companies that have a huge experience in this field. Designed for many popular models of motorcycles, these engines can be an excellent alternative to stock motors.

New aftermarket engines offered here are highly competitive in terms of price, reliability, and performance and can be used for both restoration and upgrade projects. Manufactured with the use of the latest technology, these engines meet the highest quality standards. They feature the high precision of craftsmanship, an appealing finish, and strong, durable materials. Of course, crucial parameters should be taken into consideration, such as vehicle fitment, displacement, bore, stroke, compression, type of pistons, and so on – all this information is listed in specifications provided by a supplier. Installing a new powerplant, you give a new life to your motorcycle, and in return, you get impeccable and lasting performance.