3-5/8" bore cylinders with pistons for 1984–99 big twin models with 88" engines and stock style cylinder heads. 5.375" cylinder length for 4-1/4" stroke. 9:1 compression ratio. Can be used to increase displacement of stock 80" motors to 88". Crankcase boring and flywheel balancing is required.
| S&S® 3 5/8" Bore Cylinders with Piston Kits for Stock Heads (Flat Topped Pistons) |
| Displacement |
Stroke |
Cylinder Length
|
Piston Deck Height |
Compression Ratio |
Finish (Cylinder with Pistons) |
| Stock Heads |
Natural |
Black |
| 88" |
4 1/4" |
5.375" |
1.200" |
9:1 |
91-7002 |
91-7502 |
