🏷️ Basic Information

Make:

Harley-Davidson

Model:

Big Twin (V-Twin Engine)

Engine Type:

S&S Super Stock & Super Sidewinder

Engine Family:

Harley-Davidson Big Twin platform engines with S&S performance upgrades.

Engine Codes:

S&S Super Stock (various displacements, e.g., 80", 88", 96", 100", 110", 124", 131"), S&S Super Sidewinder (various displacements, e.g., 88", 93", 96")

Engine Series Covered:

Super Stock, Super Sidewinder.

👋 Introduction

Market Position:

This manual targets owners and mechanics who specialize in or frequently work on high-performance S&S engines installed in Harley-Davidson motorcycles. It caters to the aftermarket and custom build segment, as well as those maintaining stock S&S equipped models.

Competitive Analysis:

Directly competes with S&S Cycle's own technical documentation. Its value lies in consolidating information specific to these popular performance engines often used as upgrades or replacements for stock Harley-Davidson engines. It offers a focused approach compared to general Harley-Davidson service manuals.

Key Features:

Focus on S&S specific performance components, detailed troubleshooting for high-performance applications, extensive coverage of carburetor tuning for optimal power and drivability, clear diagrams and exploded views of engine assemblies.

Troubleshooting Guides:

Extensive troubleshooting sections for common engine performance and operational issues, helping users diagnose problems efficiently.

📋 Manual Details

Coverage Areas:

Comprehensive service and repair for S&S Super Stock and Super Sidewinder engines as fitted to Harley-Davidson Big Twin motorcycles. Includes engine disassembly, assembly, tuning, troubleshooting, and component-specific repairs.

Engine Displacements Covered:

Wide range, including but not limited to 80", 88", 93", 96", 100", 107", 110", 113", 124", 131" cubic inches.

Page Count:

Estimated 300-400 pages (typical for comprehensive service manuals of this nature; exact count not provided in product description).

Manual Type:

Service/Repair Manual

Language:

English

Format:

Likely Print or Digital (PDF) - Product description does not specify, but digital is common for modern sales.

📖 Manual Coverage

Systems Covered:

Engine internals (crankshaft, connecting rods, pistons, cylinders, heads, valves, camshafts, lifters, pushrods), Carburetion (S&S Super E, G, L series, Super Sidewinder specific setups), Ignition systems (points, electronic), Oil pump and oiling system, Primary drive system (clutch, transmission interface), Engine assembly and disassembly, Tuning and carburetor adjustment, Troubleshooting common engine issues, Performance modifications and setup.

Carburetor Systems:

Detailed coverage of S&S Super E, G, L, and Super Sidewinder carburetors, including disassembly, cleaning, rebuilding, jetting, tuning, and troubleshooting idle issues, flat spots, and wide-open throttle performance.

Ignition Systems:

Covers ignition timing procedures for both points-based and electronic ignition systems commonly used with S&S engines, including curve adjustments and troubleshooting ignition-related performance problems.

Oil System:

Detailed explanation of the S&S oil pump design, oil flow paths, troubleshooting oil pressure issues, oil filter maintenance, and oil tank capacity/placement considerations.

Cylinder Head Assembly:

Detailed procedures for cylinder head removal, disassembly, valve inspection, seating, spring replacement, and reassembly.

Procedures Included:

Complete engine teardown and rebuild, cylinder head porting and assembly, valve seat grinding and lapping, piston ring installation and gap setting, crankshaft runout correction, camshaft installation and timing, lifter adjustment, carburetor tuning (jetting, idle speed, mixture), ignition timing adjustments, oil pressure testing, primary drive chain adjustment, compression testing, leak-down testing, troubleshooting specific component failures, installation of aftermarket S&S components.

Performance Tuning Procedures:

Guidance on optimizing engine performance through carburetor jetting, ignition timing adjustments, and understanding the impact of camshaft profiles, cylinder head porting, and exhaust systems.

Component Replacement Procedures:

Detailed step-by-step instructions for replacing major engine components such as pistons, rings, valves, valve springs, camshafts, bearings, and oil pumps.

Technical Depth:

In-depth technical details suitable for experienced mechanics and advanced DIY enthusiasts. Includes precise torque specifications, clearance measurements, machining tolerances, and detailed diagnostic procedures. Covers both routine maintenance and major overhauls.

Torque Specifications:

Includes precise torque values for all critical engine fasteners, from cylinder head bolts to internal engine components, ensuring proper assembly and preventing damage.

Clearance Measurements:

Provides factory-specified clearances for piston-to-cylinder wall, ring end gap, connecting rod big-end and small-end clearances, and valve-to-rocker arm lash.

Diagnostic Charts:

Includes flowcharts and diagnostic trees to systematically identify and resolve engine problems, from no-start conditions to misfires and power loss.

Performance Measurement:

Information on how to perform engine compression tests, leak-down tests, and potentially oil pressure tests to assess engine health and performance.

📊 Manual Specifications

File Format:

If digital: Searchable PDF, printable pages, high-resolution diagrams. If print: High-quality paper, durable binding.

Indexing And Searchability:

If PDF, expect a well-indexed manual with a table of contents and search functionality for quick access to specific topics.

Print Quality:

Expect clear, legible text and high-resolution diagrams/illustrations typical of professional service manuals.

Binding Type:

If print: Perfect bound or spiral-bound for lay-flat usability in a workshop environment.

Paper Type:

If print: Durable, matte finish paper to reduce glare and withstand workshop conditions.

⚙️ Engine Specifications

Primary Engine:

S&S Super Stock and S&S Super Sidewinder V-Twin engines.

Cylinder Configurations:

V-Twin, 45-degree included angle typical of Harley-Davidson Big Twins.

Performance Characteristics:

These engines are known for significantly increased horsepower and torque compared to stock Harley-Davidson engines. Specific figures vary widely based on displacement, camshafts, cylinder heads, and tuning. Expected outputs range from 90-150+ horsepower and 100-140+ ft-lbs of torque for typical builds.

Bore Stroke Combinations:

The manual covers a range of bore and stroke combinations offered by S&S, from 3.5" bore x 4.25" stroke (80") up to 4.125" bore x 4.5" stroke (131").

Fuel System:

Primarily carbureted, commonly utilizing S&S Super E, G, or L series carburetors, or specific Super Sidewinder induction setups. Also covers fuel delivery for fuel-injected variants where applicable, though the focus is historically carbureted performance.

Carburetor Models Covered:

S&S Super E, Super G, Super L, and specific Super Sidewinder intake manifold and carburetor configurations.

🔧 Transmission

Standard Transmission:

The manual covers engines that are typically mated to Harley-Davidson's 5-speed or 6-speed Big Twin transmissions (e.g., Evolution, Twin Cam). Specific transmission service is usually in a separate manual, but engine-to-transmission interface (primary drive) is covered.

Optional Transmission:

Custom 5, 6, or 7-speed transmissions might be used with these engines, but the manual's primary focus is the engine itself.

Transmission Features:

Coverage related to the engine's connection to the transmission, including clutch operation, primary drive chain tensioning, and starter engagement. Details on specific transmission internal rebuilds are outside the scope of an engine-focused manual.

📐 Dimensions

Exterior Dimensions:

Vehicle dimensions are not directly specified as the manual covers engines that are installed across various Harley-Davidson Big Twin models (e.g., Dyna, Softail, Touring).

Interior Dimensions:

Not applicable to an engine service manual.

Cargo Dimensions:

Not applicable to an engine service manual.

Engine Weight:

Engine weight varies significantly with displacement and components, but typically ranges from 150-200 lbs for a complete S&S Big Twin engine assembly.

🛡️ Safety Features

Safety Ratings:

Motorcycle safety ratings are vehicle-specific and not directly covered by an engine service manual. However, the manual will detail procedures to ensure engine reliability and performance, which are critical for safe operation.

Active Safety Features:

Not directly applicable, but proper engine tuning and maintenance contribute to predictable engine behavior.

Passive Safety Features:

Not applicable.

💡 Technology Features

Infotainment Systems:

Not applicable, as this manual focuses solely on the engine mechanical and performance aspects.

Driver Assistance Features:

Not applicable.

Connectivity Options:

Not applicable.

🔧 Maintenance

Service Intervals:

Typical recommended intervals for these performance engines include oil and filter changes every 2,500-5,000 miles, spark plug replacement every 5,000-10,000 miles, and more in-depth engine inspections/tune-ups every 10,000-20,000 miles. The manual will provide precise recommendations.

Carburetor Cleaning Interval:

Recommended cleaning and inspection of the S&S carburetor at intervals of 10,000-15,000 miles, or as needed based on performance degradation.

Engine Oil Type:

S&S engines typically require high-quality V-twin specific motorcycle oil, often a 20W-50 synthetic or mineral blend. The manual will specify exact S&S recommendations and Harley-Davidson equivalent specifications (e.g., Harley-Davidson Genuine Motor Oil).

Transmission Oil Type:

While the manual focuses on the engine, it will reference the appropriate transmission fluid types (e.g., Harley-Davidson Formula + or equivalent) for completeness regarding the powertrain.

Oil Capacity:

Oil capacity typically ranges from 3.5 to 4.5 quarts, depending on the specific engine case and oil cooler setup. The manual will provide exact capacities for various displacements.

Common Issues:

Potential issues can include premature valve guide wear (especially with aggressive cams/springs), oil leaks due to high-performance stress, carburetor tuning sensitivity, and occasional primary chain adjustment needs. The manual will guide in diagnosing and resolving these.

Common Tuning Challenges:

Difficulty achieving perfect idle stability with aggressive cam profiles, sensitivity to air cleaner restrictions, and the need for precise fuel/air mixture adjustments for optimal performance across the RPM range.

Cam And Lifter Wear:

Guidance on identifying and addressing potential wear on camshaft lobes and lifter faces, particularly in high-mileage or aggressively driven engines.

📚 Vehicle History

Brand Heritage:

Harley-Davidson boasts a rich heritage of V-twin motorcycle production dating back to 1903. S&S Cycle has been a major player in the performance aftermarket for Harley-Davidson engines since its founding in 1958, known for innovation and high-quality components.

Model Evolution:

The Super Stock and Super Sidewinder lines represent S&S's evolution in creating powerful, reliable engines for Harley-Davidson riders seeking performance beyond stock. These engines have been developed for various Harley-Davidson Big Twin platforms, including the Shovelhead, Evolution, and Twin Cam eras.

Engine Families Affected:

Covers engines designed for fitment into Harley-Davidson Big Twin frames, including Evolution Big Twin (1984-1999) and Twin Cam (1999-2017) platforms, and potentially older Shovelhead applications.

Production Years:

S&S Super Stock and Super Sidewinder engines have been in production for several decades, with continuous development and updates. They are commonly found in motorcycles from the late 1970s to the present day, both in stock configurations and custom builds.