Unleash enhanced performance with the S&S Cycle V80 complete assembled engine. Designed as a direct replacement for stock engines, the V80 delivers a significant power boost while maintaining the same displacement and physical dimensions as the stock '84-'99 Evolution Big Twin engine or '70-'99 custom frame with alternator-style primary. Description The S&S Cycle V80 engine is expertly assembled to fit seamlessly into your stock frame, offering a substantial increase in power. Featuring an S&S Super E carburetor, S&S 508 camshaft, and high-flow S&S cylinder heads, this engine provides optimized airflow and combustion for superior performance. The S&S Super Stock™ single-fire ignition ensures reliable starting and smooth running. Built with the same high-quality materials as S&S's larger performance engines, the V80 offers exceptional durability and longevity. This 80" engine provides a compression ratio of 8.4:1 for increased power and efficiency. Perfect for enthusiasts seeking a bolt-in performance upgrade, the V80 transforms your motorcycle into a true powerhouse. Installation is straightforward, as the engine maintains stock dimensions, allowing for a hassle-free swap. Features & highlights Direct replacement for stock '84-'99 Evolution Big Twin engines and '70-'99 custom frames. Equipped with S&S Super E carburetor for improved fuel delivery and performance. Features S&S 508 camshaft for optimized valve timing and increased power. High-flow S&S cylinder heads enhance airflow and combustion efficiency. S&S Super Stock™ single-fire ignition ensures reliable starting and smooth operation. Constructed from premium materials for exceptional durability and longevity. Delivers a significant power boost over stock engines while maintaining ease of installation. Technical specifications Brand: S&S Cycle Displacement: 80" Bore Size: 3.500" Stroke Length: 4.250" Compression Ratio: 8.4:1 Cooling System: Air Cooled Color/Finish: Wrinkle Black Important to know This engine is designed for carbureted applications only.