Description
| Block Height: | 9.780 |
| Bore – Actual: | 4.600 |
| Bore – Oversize: | .134 |
| Compression Height: | 1.060 |
| Compression Ratio – Actual: | 13.9 @ 124cc |
| Cylinder Head: | Open Chamber |
| Displacement: | 581 |
| Dome Volume: | 43.0 |
| Piston Head Type: | Dome |
| Piston Pin Diameter: | 0.990 |
| Ring Set Recommended: | JG7708-4600-5 |
| Rod Length: | 6.535 |
| Stroke: | 4.375 |
| Weight – Nominal: | 558 |
