V124 Evolution Long-Block Engine

The S&S Cycle V124 Evolution Long-Block Engine represents the largest stroker engine available on the S&S Evolution platform, boasting a 124 cubic inch displacement. This engine is engineered to deliver impressive performance, with a manufacturer-rated output of 128 horsepower and 133 lb-ft of torque, designed to bolt directly into stock 1984-1999 Evolution Big Twin chassis without requiring frame modifications. Key features include S&S crankcases with large-displacement stroker flywheels, 124 big-bore cylinders fitted with S&S forged pistons, and S&S cylinder heads and camshafts. The valvetrain is hydraulic. This long-block assembly is available in three finishes: all-Black Edition, Chrome with Wrinkle Black, or Chrome with Natural finish, allowing for aesthetic customization to match your build. The engine is proudly made in the United States. Fitment encompasses Harley-Davidson 1984-1999 Evolution Big Twin chassis within the Softail, FXR, Dyna, and Touring families. It is important to note that the larger stroker flywheels may necessitate additional primary-side clearance in tight-clearance stock chassis applications; confirmation with S&S Cycle or your installer is recommended. This long-block scope requires the installer to supply the carburetor or EFI, ignition system, and chassis-side primary, transmission, and exhaust components.