Description
| Bore – Actual: | 4.060 |
| Bore – Oversize: | .060 |
| Compression Height: | 1.230 |
| Compression Ratio – Actual: | 7.7 @ 70cc |
| Displacement: | 321 |
| Dome Volume: | -19.0 |
| Material Type: | 4032 |
| Piston Pin Diameter: | 0.927 |
| Ring Set Recommended: | JG31F8-4060-0 |
| Rod Length: | 5.400 |
| Stroke: | 3.100 |
| Weight – Nominal: | 407 |
