S&S Cycle SSC106-5519 - 36-84 BT 3-1/2 in Standard 80 in High-Compression Forged Pistons

These 3-1/2" standard bore high compression pistons fit 1979-'84 74" HD® big twin engines, producing 9:1 compression with stock unmodified cylinder heads.. The modern alloys used in these pistons, coupled with the advanced skirt profiles, allow them to be fit tighter resulting in low engine noise and long engine life. In the past, this could only be achieved with weaker cast pistons. S&S® will fit these pistons to your existing cylinders (when purchasing new cylinders, pistons can be fit to them as an option).

S&S Cycle SSC106-5519 high-compression forged pistons are designed for 1979–1984 74 cu. in. Harley-Davidson big twin engines. The 3-1/2-inch standard-bore pistons provide a 9:1 compression ratio when used with stock, unmodified cylinder heads.

Modern piston alloys and advanced skirt profiles allow tighter fitting than traditional designs, helping reduce engine noise and support long engine life. S&S Cycle can fit these pistons to existing cylinders, and piston fitting is also available as an option when purchasing new cylinders.

Key Features & Performance Benefits

• High-compression design supports a 9:1 compression ratio with stock, unmodified cylinder heads.
• Forged piston construction uses modern alloys for durability.
• Advanced skirt profiles allow tighter fitting for reduced engine noise.
• Designed for long engine life in applicable Harley-Davidson big twin applications.

Key Product Specifications & Technical Data

• Brand: S&S Cycle
• Part number: SSC106-5519
• Part type: Powersports
• Piston style: High-compression forged
• Bore: 3-1/2 inches
• Compression ratio: 9:1
• Engine application: 74 cu. in. Harley-Davidson big twin
• Quantity: 1 piston

What's Included

One S&S Cycle high-compression forged piston.

Fitment

Fits 1979 Harley-Davidson FLH Electra Glide; 1980 Harley-Davidson FLH Electra Glide, FLHS Electra Glide Sport, and FLT Tour Glide; 1981 Harley-Davidson FLH Electra Glide, FLHS Electra Glide Sport, and FLT Tour Glide; 1982 Harley-Davidson FLH Electra Glide, FLT Tour Glide, and FXR Super Glide II.

Fitments:
1979 Harley Davidson FLH Electra Glide Base
1980 Harley Davidson FLH Electra Glide Base
1980 Harley Davidson FLHS Electra Glide Sport Base
1980 Harley Davidson FLT Tour Glide Base
1981 Harley Davidson FLH Electra Glide Base
1981 Harley Davidson FLHS Electra Glide Sport Base
1981 Harley Davidson FLT Tour Glide Base
1981 Harley Davidson FLTC Tour Glide Classic Base
1982 Harley Davidson FLH Electra Glide Base
1982 Harley Davidson FLHS Electra Glide Sport Base
1982 Harley Davidson FLT Tour Glide Base
1982 Harley Davidson FXR Super Glide II Base
1983 Harley Davidson FLH Electra Glide Base
1983 Harley Davidson FLHS Electra Glide Sport Base
1983 Harley Davidson FLT Tour Glide Base
1983 Harley Davidson FXR Super Glide II Base
1984 Harley Davidson FLH Electra Glide Base
1984 Harley Davidson FLHS Electra Glide Sport Base
1984 Harley Davidson FLHX Electra Glide Special Base

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Unknown
Part Type: powersports
Epa: N/A
Regular Stock: false
Units Per Sku: 1