Harley Complete Engines
Harley Bike Complete Engines at JJ Motorsports
Power up your Harley with premium complete engines from JJ Motorsports, featuring S&S Cycle's high-performance long-block and short-block designs for massive torque and reliability on Sportster, Big Twin, Evo, and custom builds. These ready-to-install engines deliver dyno-proven power with precision machining and proven internals.
Shop S&S Cycle complete engines for race-grade quality. Explore related categories such as Harley engine for rebuild kits and components, or Harley for exhaust and cams to complete your high-output build.
Top Harley Complete Engines
- S&S Cycle V111 Long Block Engine 310-0829 – 111 cubic inch long block with 4.625" bore; complete from crankcase up for Twin Cam conversions.
- S&S Cycle T124LC Series Long Block Engine 310-0401A – 124" long block with 4.250" bore; high-compression for M8 Touring and Softail models.
- S&S Cycle P93 Series Engine 106-0821 – 93 cubic inch short block; balanced crank and rods for Sportster and lightweight custom applications.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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On Sale
S&S CYCLE T143 Long-Block Engine 310-0833A
S&S CYCLE
MSRP: $10,595.95Now: $9,536.36Was: $10,595.95The S&S Cycle T143 is purpose-built for riders who demand maximum performance without sacrificing chassis compatibility. At double the horsepower of a stock motor, this ultra-performance long-block delivers the displacement and power necessary to...09010245- SKU:
- 09010245
- Availability:
- Ships Same Business Day
- Weight:
- 155.00 LBS
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- BORE SIZE IMPERIAL:
- 4.425'
- COLOR/FINISH:
- BLACK
- STROKE LENGTH IMPERIAL:
- 4.625'
- TYPE:
- LONG BLOCK
- UNITS:
- EACH
- DISPLACEMENT:
- 143'
- MODEL:
- T-SERIES
- PRODUCT NAME:
- ENGINE
- RIDING STYLE:
- STREET
MSRP: $10,595.95Now: $9,536.36Was: $10,595.95Qty in Cart: 0Quantity:Price:MSRP: $10,595.95Now: $9,536.36Was: $10,595.95Subtotal: -
On Sale
S&S CYCLE T111 Long Block Engine 310-0834A
S&S CYCLE
MSRP: $8,295.95Now: $7,466.36Was: $8,295.95The S&S Cycle T111 long block delivers significantly more horsepower and torque than aging stock engines while maintaining compatibility with your existing fuel system and ignition—no expensive rewiring or fuel management upgrades required. This...09010246- SKU:
- 09010246
- Availability:
- Ships Same Business Day
- Weight:
- 155.00 LBS
- COLOR/FINISH:
- BLACK
- PISTON HEAD SHAPE:
- FLAT TOP
- BORE SIZE IMPERIAL:
- 4.125'
- DISPLACEMENT:
- 111'
- PRODUCT NAME:
- ENGINE
- RIDING STYLE:
- STREET
- TYPE:
- LONG BLOCK
- UNITS:
- EACH
- COMPRESSION RATIO IMPERIAL:
- 9.8:1
- MODEL:
- T-SERIES
- STROKE LENGTH IMPERIAL:
- 4.125'
MSRP: $8,295.95Now: $7,466.36Was: $8,295.95Qty in Cart: 0Quantity:Price:MSRP: $8,295.95Now: $7,466.36Was: $8,295.95Subtotal: -
On Sale
S&S CYCLE T124 Series Engine 310-0835A
S&S CYCLE
MSRP: $8,595.95Now: $7,736.36Was: $8,595.95If you're running an aging stock engine in your Harley-Davidson, you're leaving serious power on the table. The S&S Cycle T124 Series delivers 124 cubic inches of displacement with a 10.8:1 compression ratio—engineered specifically for street performance...09010247- SKU:
- 09010247
- Availability:
- Ships Same Business Day
- Weight:
- 155.00 LBS
- BORE SIZE IMPERIAL:
- 4.125'
- COLOR/FINISH:
- BLACK
- DISPLACEMENT:
- 124'
- PISTON HEAD SHAPE:
- FLAT TOP
- STROKE LENGTH IMPERIAL:
- 4.625'
- PRODUCT NAME:
- ENGINE
- RIDING STYLE:
- STREET
- STYLE:
- HIGH COMPRESSION
- TYPE:
- LONG BLOCK
- COMPRESSION RATIO IMPERIAL:
- 10.8:1
- MODEL:
- T-SERIES
- UNITS:
- EACH
MSRP: $8,595.95Now: $7,736.36Was: $8,595.95 -
On Sale
S&S CYCLE T124LC Series Long Block Engine 310-0836A
S&S CYCLE
MSRP: $8,595.95Now: $7,736.36Was: $8,595.95Replace that worn stock engine with a purpose-built long block that delivers substantial low-end torque and reliable street performance. The S&S T124LC's 10.2:1 compression ratio prioritizes real-world rideability over peak horsepower, making it the...09010248- SKU:
- 09010248
- Availability:
- Ships Same Business Day
- Weight:
- 156.00 LBS
- BORE SIZE IMPERIAL:
- 4.125'
- COLOR/FINISH:
- BLACK
- DISPLACEMENT:
- 124'
- STROKE LENGTH IMPERIAL:
- 4.625'
- PRODUCT NAME:
- ENGINE
- RIDING STYLE:
- STREET
- STYLE:
- LOW COMPRESSION
- TYPE:
- LONG BLOCK
- MODEL:
- T-SERIES
- COMPRESSION RATIO IMPERIAL:
- 10.2:1
- UNITS:
- EACH
MSRP: $8,595.95Now: $7,736.36Was: $8,595.95 -
On Sale
S&S CYCLE T143 Long-Block Engine 310-0883A
S&S CYCLE
MSRP: $10,595.95Now: $9,536.36Was: $10,595.95The S&S CYCLE T143 Long-Block Engine delivers serious displacement and proven performance in a package engineered specifically for 2006-2017 Harley-Davidson Dyna models—no frame modification required. With CNC-machined B3 cylinder heads, gear-drive...09010249- SKU:
- 09010249
- Availability:
- Ships Same Business Day
- Weight:
- 160.00 LBS
- BORE SIZE IMPERIAL:
- 4.425'
- COLOR/FINISH:
- WRINKLE BLACK
- STROKE LENGTH IMPERIAL:
- 4.625'
- TYPE:
- LONG BLOCK
- DISPLACEMENT:
- 143'
- MODEL:
- T-SERIES
- COLOR/FINISH:
- CHROME
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- PRODUCT NAME:
- ENGINE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $10,595.95Now: $9,536.36Was: $10,595.95Qty in Cart: 0Quantity:Price:MSRP: $10,595.95Now: $9,536.36Was: $10,595.95Subtotal: -
On Sale
S&S CYCLE T143 Long-Block Engine 310-0901A
S&S CYCLE
MSRP: $10,595.95Now: $9,536.36Was: $10,595.95The S&S Cycle T143 is a complete long-block engine designed to unlock genuine performance gains in your 2006–2017 Harley-Davidson Dyna without compromising reliability or requiring frame modifications. Built with CNC-machined B3 cylinder heads, S&S super...09010250- SKU:
- 09010250
- Availability:
- Ships Same Business Day
- Weight:
- 160.00 LBS
- BORE SIZE IMPERIAL:
- 4.425'
- COLOR/FINISH:
- BLACK
- STROKE LENGTH IMPERIAL:
- 4.625'
- TYPE:
- LONG BLOCK
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- PRODUCT NAME:
- ENGINE
- RIDING STYLE:
- STREET
- DISPLACEMENT:
- 143'
- MODEL:
- T-SERIES
- UNITS:
- EACH
MSRP: $10,595.95Now: $9,536.36Was: $10,595.95Qty in Cart: 0Quantity:Price:MSRP: $10,595.95Now: $9,536.36Was: $10,595.95Subtotal: -
On Sale
S&S CYCLE T143 Long Block Engine - Black 310-0837A
S&S CYCLE
MSRP: $10,595.95Now: $9,536.36Was: $10,595.95The S&S T143 Long Block delivers double the horsepower of a stock Harley engine while maintaining fitment in your existing chassis—no frame modifications required. Built for serious racers and performance enthusiasts willing to master the additional...09010253- SKU:
- 09010253
- Availability:
- Ships Same Business Day
- Weight:
- 160.01 LBS
- BORE SIZE IMPERIAL:
- 4.425'
- COLOR/FINISH:
- BLACK
- STROKE LENGTH IMPERIAL:
- 4.625'
- PRODUCT NAME:
- ENGINE
- RIDING STYLE:
- STREET
- TYPE:
- LONG BLOCK
- UNITS:
- EACH
- COMPRESSION RATIO IMPERIAL:
- 10.47:1
- DISPLACEMENT:
- 143'
- MODEL:
- T-SERIES
MSRP: $10,595.95Now: $9,536.36Was: $10,595.95Qty in Cart: 0Quantity:Price:MSRP: $10,595.95Now: $9,536.36Was: $10,595.95Subtotal: -
On Sale
S&S CYCLE V111 Long-Block Engine - Evolution 310-0766
S&S CYCLE
MSRP: $7,999.95Now: $7,199.96Was: $7,999.95The S&S Cycle V111 long-block engine delivers a substantial 30% increase in horsepower and torque over stock specifications, giving your Evolution-platform motorcycle the performance edge you've been seeking. Its short-stroke design reduces vibration...09010197- SKU:
- 09010197
- Availability:
- Ships Same Business Day
- Weight:
- 149.00 LBS
- BORE SIZE IMPERIAL:
- 4.125'
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- WRINKLE
- COOLING SYSTEM:
- AIR COOLED
- DISPLACEMENT:
- 111'
- MODEL:
- V-SERIES
- PRODUCT NAME:
- ENGINE
- RIDING STYLE:
- STREET
- TYPE:
- LONG BLOCK
- UNITS:
- EACH
- COMPRESSION RATIO IMPERIAL:
- 9.8:1
- STROKE LENGTH IMPERIAL:
- 4-1/8'
MSRP: $7,999.95Now: $7,199.96Was: $7,999.95Qty in Cart: 0Quantity:Price:MSRP: $7,999.95Now: $7,199.96Was: $7,999.95Subtotal: -
On Sale
S&S CYCLE T124HC Long-Block Engine 310-0882A
S&S CYCLE
MSRP: $8,595.95Now: $7,736.36Was: $8,595.95If you're building serious performance into a 2006-17 Dyna platform, a factory long-block simply won't cut it. The S&S T124HC delivers the displacement, airflow, and reliability you need to make real horsepower gains without compromising durability. This...09010240- SKU:
- 09010240
- Availability:
- Ships Same Business Day
- Weight:
- 155.00 LBS
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- BORE SIZE IMPERIAL:
- 4.125'
- COLOR/FINISH:
- WRINKLE BLACK
- COMPRESSION RATIO IMPERIAL:
- 10.8:1
- MODEL:
- T-SERIES
- STROKE LENGTH IMPERIAL:
- 4.625'
- STROKE LENGTH IMPERIAL:
- 4-5/8'
- PISTON HEAD SHAPE:
- FLAT TOP
- DISPLACEMENT:
- 124'
- PRODUCT NAME:
- ENGINE
- RIDING STYLE:
- STREET
- STYLE:
- HIGH COMPRESSION
- TYPE:
- LONG BLOCK
MSRP: $8,595.95Now: $7,736.36Was: $8,595.95Qty in Cart: 0Quantity:Price:MSRP: $8,595.95Now: $7,736.36Was: $8,595.95Subtotal:
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Harley Bike Complete Engines
- Compatibility: Ensure the engine fits your Harley's chassis and model (e.g., stock frames for V80 or T124, Big Twin for P93). Use the vehicle selector for displacement (80"-143") and bolt-in designs to avoid frame modifications or fit issues.
- Type of Use: For street torque and cruising, opt for lower compression (e.g., T124LC 10.2:1); high-performance builds benefit from high compression (e.g., T124 10.8:1) for ultimate power in demanding rides.
- Components and Upgrades: Select long-block engines with Super Stock heads, forged pistons, high-flow oil pumps, and cams (e.g., 585/508/520). Add features like electronic ignition, Super E carb, or reed breather for enhanced reliability and HP/torque gains.
- Brand and Quality: Primarily S&S Cycle for dyno-proven, USA-made engines with CNC-machined heads and forged internals. Prioritize wrinkle black/silver/chrome finishes for heat resistance and stock-like aesthetics.
- Installation and Cost: Engines are ready-to-install with no fuel/ignition included; prices range from $7,099.95 for V80 to $11,495.95 for P93—factor in weight (148-162 lbs), shipping, and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What Harley models do these complete engines support? Engines are designed for Big Twin, Evolution, Shovelhead, and stock frames (e.g., V80 for 80" H-D replacements)—use the year/make/model filter for exact bolt-in compatibility.
- How do these engines improve performance? Features like forged pistons, Super Stock heads, and high-flow pumps provide +30% HP/torque over stock, with short strokes for less vibration and easy start cams for reliability.
- What is included in a long-block engine? Typically Super Stock heads, crankcases, oil pumps, cams, pistons, and valve train; no carb, ignition, or intake—check for specifics like 585 cam or 10:1 compression.
- Are these engines air-cooled? Yes, designed for air-cooled street riding with stock breathing systems and manifold compatibility for easy upgrades.
- What if an engine doesn't fit my Harley? Verify displacement, bore/stroke, and chassis compatibility before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related engine parts? Yes—explore rebuild kits, pistons, gaskets, or cams in the Harley engine category to complement your complete engine upgrade.
