Description
| Bore – Actual: | 4.060 |
| Bore – Oversize: | .060 |
| Compression Height: | 1.600 |
| Compression Ratio – Actual: | 8.6 @ 70cc |
| Displacement: | 311 |
| Dome Volume: | -5.0 |
| Material Type: | 4032 |
| Piston Pin Diameter: | 0.912 |
| Ring Set Recommended: | JG31F8-4060-0 |
| Rod Length: | 5.090 |
| Stroke: | 3.000 |
| Weight – Nominal: | 478 |
