S&S Cycle 80 Inch Stock Bore Cylinder and Piston Kit for 1979-1984 Harley-Davidson Shovelhead

S&S Cycle 80 Inch Stock Bore Cylinder and Piston Kit for 1979-1984 Harley-Davidson Shovelhead

When the goal is a freshly rebuilt 80 inch Shovelhead that runs exactly as it should – not a stroker project or a big bore build – this S&S kit delivers the quality and completeness that stock replacement parts simply don’t provide. The 3.5 inch bore cylinders and standard compression forged pistons keep the engine true to its original 80 cubic inch displacement while upgrading every worn component with S&S precision.

Key Features

• Stock bore 3.5 inch cylinders paired with standard 8:1 compression forged pistons
• Preserves original 80 cubic inch displacement – designed for stock rebuilds, not displacement upgrades
• Gloss black cylinder finish
• Complete kit includes cylinders, pistons with rings and wristpins, head gaskets, stainless steel head bolts with washers, base nuts, and base gaskets
• Made in the USA by S&S Cycle

Technical Specifications

• Displacement: 80 cubic inches
• Bore: 3.5 inches (stock)
• Stroke: 4.25 inches
• Compression Ratio: 8:1 (standard)
• Finish: Gloss black
• Included: Front and rear cylinders, forged pistons with rings and wristpins, head gaskets, stainless steel head bolts with washers, base nuts, base gaskets
• Fitment: 1979-1984 Harley-Davidson 80 inch Shovelhead
• Origin: Made in USA

Fitment Notes

• Fits 1979-1984 Harley-Davidson models with the 80 cubic inch Shovelhead engine
• Pistons in this kit are not intended for use in 74 inch engines – very low compression and poor performance will result
• Designed for stock bore engines – no crankcase machining required when bore is at standard size
• Review the Fitment tab for the complete year and model breakdown