Description
| Bore – Actual: | 4.060 |
| Bore – Oversize: | .060 |
| Compression Height: | 1.425 |
| Compression Ratio – Actual: | 8.2 @ 70cc |
| Displacement: | 388 |
| Dome Volume: | -31.0 |
| Material Type: | 4032 |
| Piston Pin Diameter: | 0.927 |
| Ring Set Recommended: | JG31F8-4060-0 |
| Rod Length: | 5.700 |
| Stroke: | 3.750 |
| Weight – Nominal: | 460 |
