S&S Lifter Installation and Performance Engine Components for Harley-Davidson Motorcycles

For Harley-Davidson enthusiasts and performance-oriented motorcycle owners, optimizing engine performance is a top priority. S&S Cycle offers a range of high-performance engine components, including lifters, camshaft kits, cylinder heads, and more, designed specifically for Harley-Davidson models. The installation of these components requires careful attention to specifications, safety procedures, and manufacturer guidelines. While the provided source material does not explicitly mention S&S lifter installation instructions, it offers extensive documentation on S&S performance parts, including camshaft kits, cylinder heads, and other engine components. These resources provide valuable insights into the broader context of S&S engine upgrades and installation procedures, which are essential for ensuring proper operation and longevity of the modified engine.

The following article is structured to provide a comprehensive overview of S&S performance parts and their installation procedures, with a focus on camshaft kits, cylinder heads, and related components. These components are frequently used in conjunction with lifters, and understanding their installation processes can help users appreciate the broader mechanical interdependencies. However, the direct installation instructions for S&S lifters are not included in the provided source material.

Overview of S&S Performance Components

S&S Cycle is a well-respected manufacturer of high-performance engine components for Harley-Davidson and Buell motorcycles. The company’s product line includes replacement engines, cylinder heads, carburetors, camshaft kits, and fuel system upgrades. Each component is engineered to enhance power output, improve throttle response, and optimize engine efficiency. The installation of these parts typically requires a deep understanding of motorcycle mechanics and adherence to detailed installation instructions.

One of the key aspects of S&S performance parts is their compatibility with a wide range of Harley-Davidson models, including the Sportster, Big Twin V2, and Evolution series. The source material includes installation guides for S&S Super Stock Cylinder Heads, S&S Camshaft Kits, and S&S Fuel System Upgrade Kits, each of which is designed for specific engine models and performance goals. These guides detail the necessary steps for disassembly, fitting, and reassembly, along with important safety precautions and maintenance recommendations.

For example, the S&S Super Stock Cylinder Head Installation Instructions cover the disassembly of existing cylinder heads, fitting of new heads, and break-in procedures. The S&S Camshaft Kits for 1984–1999 Big Twin V2 Engines provide detailed specifications on cam profiles, lift, duration, and recommended compression ratios. These components are often used in conjunction with lifters, which are integral to the engine’s valve train system. While the direct installation instructions for S&S lifters are not included in the source material, the broader context of engine assembly and valve train operation is well-documented.

S&S Camshaft Kits and Their Applications

The S&S Camshaft Kits are among the most popular performance upgrades offered by the company. Designed for 1984–1999 Harley-Davidson Big Twin V2 engines, these kits are available in various profiles to suit different performance goals. The cam profiles are categorized based on their lift, duration, and overlap characteristics, allowing users to select the ideal configuration for their riding style and engine setup.

According to the source material, S&S camshaft kits are engineered to improve engine performance by optimizing valve timing and duration. The specifications for each cam profile include details on lobe lift, valve duration at 0.050-inch lift, and overlap (the period during which both intake and exhaust valves are open). These parameters influence the engine’s power band, torque output, and overall efficiency. For example, low-lift, short-duration cams are ideal for street riding and low-end torque, while high-lift, long-duration cams are suited for high-RPM power and racing applications.

The installation of S&S camshaft kits requires careful attention to engine specifications and assembly procedures. The source guide emphasizes the importance of matching the cam profile to the engine’s compression ratio and cylinder head design. It also highlights the need for proper valve clearance and timing setup to ensure reliable operation. While the direct installation instructions for lifters are not provided, the camshaft installation process often involves working with the engine’s valve train components, including lifters, pushrods, and rocker arms. This highlights the interconnected nature of these components and the necessity of precise installation.

S&S Super Stock Cylinder Head Installation

The S&S Super Stock Cylinder Head Installation Instructions cover the process of replacing factory cylinder heads with S&S performance heads on Harley-Davidson Evolution and Sportster models. These cylinder heads are designed to improve airflow, combustion efficiency, and overall engine performance. The installation guide details the disassembly of the existing heads, fitting of the new heads, and break-in procedures.

Key steps in the installation process include removing the intake and exhaust manifolds, removing the cylinder head bolts in the correct sequence, and inspecting the cylinder head and gasket surfaces for damage or wear. The guide also provides instructions on installing new valve springs, retainers, and seals, which are essential for maintaining proper valve operation and sealing. After installation, the heads must be properly torqued and tested for leaks or misalignment.

The break-in procedure is an important aspect of the installation process. The guide recommends a specific warm-up and idle procedure to allow the valve seats to properly seat against the valves. It also advises against aggressive riding or high-RPM operation during the initial break-in period to prevent premature wear or damage. While the guide does not mention lifter installation directly, the cylinder head and valve train components are closely related, and proper installation of all parts is necessary for optimal engine performance.

S&S Fuel System Upgrades

The S&S Fuel System Upgrade Kit is another popular performance enhancement offered by the company. Designed for 1995–2001 Harley-Davidson touring models, this kit includes a Magneti Marelli-style VFI module and a single-bore throttle body. The installation guide provides detailed instructions on how to integrate these components into the existing fuel system, including wiring, calibration, and software setup.

The VFI module is responsible for managing fuel delivery and ignition timing, and it must be properly calibrated using the ProTune II software. The installation guide includes information on the necessary hardware, wiring connections, and software setup procedures. It also highlights the importance of proper calibration to ensure optimal engine performance and fuel efficiency.

The throttle body is another critical component of the fuel system upgrade. It must be properly aligned and sealed to prevent air leaks and ensure accurate throttle response. The guide includes step-by-step instructions on how to install the throttle body, connect the necessary sensors, and test the system for proper operation. While the direct installation instructions for lifters are not included, the fuel system upgrade often involves working with the engine’s intake and exhaust systems, which are closely related to the valve train components.

S&S 49-State Certified Engines

For users seeking a complete engine upgrade, S&S offers 49-State Certified Engines that meet emissions standards while delivering enhanced performance. The installation instructions for these engines cover a wide range of topics, including safety precautions, component setup, electrical connections, and troubleshooting. These engines are compatible with a variety of Harley-Davidson models, including the V124E, V113E, and V111E models.

The installation guide for the 49-State Certified Engines emphasizes the importance of following all safety precautions to prevent injury or damage during the installation process. It also provides detailed instructions on how to assemble and connect the various engine components, including the oiling system, throttle assembly, and electrical connections. The guide also includes troubleshooting tips for common issues such as oil leaks, electrical malfunctions, and performance irregularities.

While the installation instructions for lifters are not included in the source material, the broader engine assembly process involves working with the valve train and related components. The guide highlights the importance of proper valve clearance, timing, and lubrication to ensure reliable operation. It also emphasizes the need for regular maintenance and inspection to prolong the life of the engine and prevent potential failures.

S&S Replacement Engine Owner's Manual

The S&S Replacement Engine Owner's Manual is a comprehensive resource for users who have installed a S&S replacement engine in their Harley-Davidson motorcycle. The manual covers topics such as safe installation, operation, maintenance schedules, engine specifications, and warranty information. It is an essential reference for ensuring the proper care and operation of the engine.

The manual includes detailed information on engine maintenance, including recommended oil change intervals, filter replacements, and inspection schedules. It also provides specifications for engine performance, such as horsepower, torque, and RPM ranges. The warranty information is also an important part of the manual, as it outlines the terms and conditions for coverage and support.

While the manual does not include direct installation instructions for lifters, it does emphasize the importance of following all manufacturer guidelines for engine assembly and maintenance. The manual also includes troubleshooting tips for common issues that may arise during operation, such as unusual noises, performance irregularities, and oil leaks. These tips can help users identify and resolve potential problems before they escalate into more serious issues.

Conclusion

S&S Cycle offers a wide range of high-performance engine components and upgrade kits designed for Harley-Davidson and Buell motorcycles. These components, including camshaft kits, cylinder heads, fuel system upgrades, and 49-State Certified Engines, are engineered to enhance engine performance, improve throttle response, and optimize overall efficiency. The installation of these components requires careful attention to specifications, safety procedures, and manufacturer guidelines.

While the provided source material does not include direct installation instructions for S&S lifters, it does provide extensive documentation on related components and installation processes. The S&S Camshaft Kits, Cylinder Head Installation Guide, Fuel System Upgrade Kit, and 49-State Certified Engines all offer valuable insights into the broader context of engine assembly and performance tuning. Understanding these installation processes can help users appreciate the interconnected nature of engine components and the importance of precise assembly.

For users seeking detailed installation instructions for S&S lifters, it is recommended to consult the full technical manuals or contact S&S Cycle directly for support. The company offers a range of resources and technical assistance to ensure proper installation and optimal performance.