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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S&S CYCLE T143 Long-Block Engine 310-0833A
S&S CYCLE
$10,595.95Fits in stock chassis, no cutting or frame modifications necessary, S&S B3 cylinder heads CNC-machined with two-bolt exhaust flanges, S&S super stock T2 crankcases with reed breather valve three-piece flywheels, S&S high-flow oil pump and cam...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
$10,595.95 -
S&S CYCLE T111 Long Block Engine 310-0834A
S&S CYCLE
$8,295.95Super stock heads and crankcase, S&S easy start cams, High-flow oil pump, Forged flattop pistons, Intake system not included; compatible with stock or aftermarket intake systems, 4-1/8 bore x 4-1/8 stroke, 9.8:1 compression ratio, Wrinkle black...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'
$8,295.95Qty in Cart: 0Quantity:Price:$8,295.95Subtotal: -
S&S CYCLE T124 Series Engine 310-0835A
S&S CYCLE
$8,595.95High Compression, 10.8:1 for the ultimate in street performance, No fuel system or ignition systems included, Special head machining fits stock length intake manifolds (S&S manifold size 410), Stock style breathing system; compatible with stock and...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
$8,595.95 -
S&S CYCLE T124LC Series Long Block Engine 310-0836A
S&S CYCLE
$8,595.95Lower Compression, 10.2:1, for great street torque, Includes Super Stock heads, T2 crankcase, high flow oil pump, cam cover and easy start gear drive cams, Stock Twin Cam 96 bolt pattern, Specs: displacement 124"; bore 4-1/8"; stroke 4-5/8"; 585 cam;...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
$8,595.95 -
S&S CYCLE T143 Long-Block Engine 310-0883A
S&S CYCLE
$10,595.95Fits in stock chassis, no cutting or frame modifications necessary, S&S B3 cylinder heads CNC-machined with two-bolt exhaust flanges, S&S super stock T2 crankcases with reed breather valve three-piece flywheels, S&S high-flow oil pump and cam...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
$10,595.95 -
S&S CYCLE T143 Long-Block Engine 310-0901A
S&S CYCLE
$10,595.95Fits in stock chassis, no cutting or frame modifications necessary, S&S B3 cylinder heads CNC-machined with two-bolt exhaust flanges, S&S super stock T2 crankcases with reed breather valve three-piece flywheels, S&S high-flow oil pump and cam...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
$10,595.95 -
S&S CYCLE T143 Long Block Engine - Black 310-0837A
S&S CYCLE
$10,595.95Fits in stock chassis – no cutting or frame modifications, S&S B3 cylinder heads CNC machined with 2 bolt exhaust flanges, 3 Piece Flywheels, S&S TC3 oil pump and cam plate, S&S 635 Easy Start Gear Drive Cams, S&S 1.725:1 rocker...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
$10,595.95 -
S&S CYCLE V111 Long-Block Engine - Evolution 310-0766
S&S CYCLE
$7,999.95`+30% increase in HP and torque over stock, Short stroke for less vibration and longer engine life, Shorter than stock engine height for easy installation, Does not include carb or ignition; use stock or aftermarket carburetor and air cleaner, High...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'
$7,999.95Qty in Cart: 0Quantity:Price:$7,999.95Subtotal: -
S&S CYCLE T124HC Long-Block Engine 310-0882A
S&S CYCLE
$8,595.95Fits in stock chassis, no cutting or frame modifications necessary, S&S B3 cylinder heads CNC-machined with two-bolt exhaust flanges, S&S super stock T2 crankcases with reed breather valve three-piece flywheels, S&S high-flow oil pump and cam...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
$8,595.95Qty in Cart: 0Quantity:Price:$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.
