S&S 108 mm Stroke Flywheel Assembly SS32-2235 for Big Twin 1973-1984

S&S 108 mm Stroke Flywheel Assembly SS32-2235 for Big Twin 1973-1984

$3,711.11
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S&S 108 mm Stroke Flywheel Assembly SS32-2235 for Big Twin 1973-1984

S&S 108 mm Stroke Flywheel Assembly SS32-2235 for Big Twin 1973-1984

$3,711.11

Upgrade or rebuild your engine with the precision-engineered S&S 108 mm stroke flywheel assembly, designed specifically for Harley-Davidson Big Twin models from 1973 to 1984. Engineered to deliver exceptional durability and smooth bottom-end performance, this assembly provides a robust foundation for standard 80ci engines.

This flywheel assembly also allows for displacement upgrades on 1200cc engines from 1973 to 1980, converting them reliably to 1340cc (80ci). Manufactured in the USA, it delivers uncompromising quality and precise tolerances for high-demand riding applications.

Key Features

Brand S&S
Manufacturer Part Number 32-2235
Product Type Flywheel Assembly
Stroke 108 mm (4-1/4 in.)
Fitment 80ci Big Twins 1973-1984
Engine Displacement Compatibility 1200cc to 1340cc (80ci)
Required Cylinder Kit for Upgrade SS91-9023
Required Base Studs for Upgrade CM-8857-8
Country of Origin USA
Condition New

Highlights

  • Engineered and manufactured in the USA by S&S Cycle
  • 108 mm (4-1/4 in.) stroke for reliable bottom-end operation
  • Supports displacement upgrades from 1200cc to 1340cc (80ci)
  • Direct fitment for 1973–1984 Harley-Davidson 80ci Big Twin models

Compatibility

Compatible with:

  • Harley-Davidson 80ci Big Twin models (1973–1984)
  • Harley-Davidson 1200cc Big Twin models (1973–1980) when performing a 1340cc/80ci conversion

Downloads

Frequently asked questions

Which motorcycle models does this flywheel assembly fit?

It is designed directly for 80ci Harley-Davidson Big Twin models manufactured between 1973 and 1984.

Can this flywheel assembly be used to upgrade a 1200cc engine?

Yes, it can be used to upgrade 1200cc engines from 1973 to 1980 to a 1340cc (80ci) configuration.

What additional parts are needed when upgrading a 1200cc engine to 1340cc?

Upgrading requires an 88.9 mm (3-1/2 in.) bore cylinder and piston kit (part # SS91-9023) and 1340cc/80ci Shovel cylinder base studs (part # CM-8857-8).

Why are special cylinder base studs required for the 1340cc upgrade?

The 1340cc/80ci cylinder base studs are slightly longer to accommodate the thicker base area of the 1340cc/80ci cylinders.

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