3 1/2" bore cylinders for Stock, S&S® Performance, and Super Stock® Heads. 1984–'99 big twins. On top of being constructed from superior materials, S&S replacement cylinders have thicker castings, larger cooling fins, and better wear resistance than stock cylinders. Super Stock® pistons for 80" engines can be used with stock 80" flywheels without rebalancing.
| S&S® 3 1/2" Bore Cylinders and Cast Pistons for Stock Heads and S&S® Performance Replacement |
| Displacement |
Stroke |
Cylinder Length |
Piston Deck Height
|
Compression Ratio |
Finish (Cylinders Only) |
| Natural |
Black |
Special Order (Call for pricing)
|
| 89" |
4 5/8" |
5.550" |
1.1875" |
9.25:1 |
91-7210 |
91-7710 |
91-7504 |
| S&S® 3 1/2" BORE CYLINDERS AND FORGED PISTONS FOR S&S SUPER STOCK® HEADS |
| Displacement |
Stroke
|
Compression Ratio |
Cylinder Length |
Finish (Cylinders Only) |
| Natural |
Black |
Special Order (Call for pricing)
|
| 80" |
4 1/4" |
5.550" |
10:01 |
91-7210
|
91-7710 |
91-7504 |
| 89" LC |
4 5/8" |
5.550" |
10:01 |
| 89" HC |
4 5/8" |
5.550" |
12.5:1 |
