Description
| Bore – Actual: | 4.020 |
| Bore – Oversize: | .020 |
| Compression Height: | 1.125 |
| Compression Ratio – Actual: | 10.3:1 @ 70cc |
| Displacement: | 381 |
| Dome Volume: | -4.5 |
| Material Type: | 4032 |
| Piston Pin Diameter: | 0.927 |
| Ring Set Recommended: | JG3108-4020-2 |
| Rod Length: | 6.000 |
| Stroke: | 3.750 |
| Weight – Nominal: | 441 |
