| Engine Family | Small Block Ford 302/351W 20° |
|---|---|
| CID/Ltr | 428/7.0 |
| Bore Inch | 4.125 |
| Bore mm | 104.78 |
| Stroke Inch | 4 |
| Stoke mm | 101.6 |
| Rod Length | 6.25 |
| Comp Dist | 1.235 |
| Crown Volume | -5cc |
| CR 1 | 14.2 @ 58cc |
| CR 2 | 13.1 @ 64cc |
| CR 3 | 11.9 @ 70cc |
| Alloy | 4032 |
| Weight | 465 |
| Pin | 0.927 |
| Oil Rails Included | N/A |
| Top Ring | 1.5mm |
| 2nd Ring | 1.5mm |
| Oil Ring HT | 3.0mm |
| Piston Style | Flat Top, two valve reliefs |
AutoTec, Small Block Ford 302/351W 20°, Flat Top, two valve reliefs, 4.125 Bore 4.000 Stroke 1.235 Comp HT
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