Products specifications
| Block Height | 9.475 |
| Fitment | Engine Specific |
| Block Height | 9.488 |
| Block Height | 9.5 |
| Bore | 4.125 |
| CID | 401 |
| CID | 406 |
| CID | 411 |
| CID | 414 |
| CID | 427 |
| Comp Height | 1.35 |
| Comp Ratio @ 56cc | 12.7:1 |
| Comp Ratio @ 56cc | 12.8:1 |
| Comp Ratio @ 56cc | 13.1:1 |
| Comp Ratio @ 56cc | 13.5:1 |
| Comp Ratio @ 56cc | 13:1 |
| Comp Ratio @ 60cc | 12.2:1 |
| Comp Ratio @ 60cc | 12.4:1 |
| Comp Ratio @ 60cc | 12.5:1 |
| Comp Ratio @ 60cc | 12.8:1 |
| Comp Ratio @ 60cc | 12:1 |
| Comp Ratio @ 64cc | 11.5:1 |
| Comp Ratio @ 64cc | 11.6:1 |
| Comp Ratio @ 64cc | 11.8:1 |
| Comp Ratio @ 64cc | 11.9:1 |
| Comp Ratio @ 64cc | 12.2:1 |
| Dome Volume | -5 |
| Gram Weight | 497 |
| Oversize | STD |
| Rod | 6.125 |
| Rod | 6.2 |
| Rod | 6.25 |
| Stroke | 3.75 |
| Stroke | 3.8 |
| Stroke | 3.85 |
| Stroke | 3.875 |
| Stroke | 4 |