| Block Height | 9 |
| Fitment | Engine Specific |
| Bore | 4.03 |
| CID | 357 |
| CID | 383 |
| Comp Height | 1.125 |
| Comp Ratio @ 58cc | 11.2:1 |
| Comp Ratio @ 58cc | 11.9:1 |
| Comp Ratio @ 64cc | 10.3:1 |
| Comp Ratio @ 64cc | 11.1:1 |
| Comp Ratio @ 76cc | 9.1:1 |
| Comp Ratio @ 76cc | 9.7:1 |
| Dome Volume | -5 |
| Gram Weight | 391 |
| Oversize | 0.03 |
| Rod | 6 |
| Rod | 6.125 |
| Stroke | 3.5 |
| Stroke | 3.75 |