| Engine Family | Pontiac 455 |
|---|---|
| CID/Ltr | 463/7.6 |
| Bore Inch | 4.185 |
| Bore mm | 106.3 |
| Stroke Inch | 4.21 |
| Stoke mm | 106.93 |
| Rod Length | 6.625 |
| Comp Dist | 1.47 |
| Crown Volume | -7cc |
| CR 1 | 12.2 @ 72cc |
| CR 2 | 11.2 @ 80cc |
| CR 3 | 10.5 @ 84cc |
| Alloy | 4032 |
| Weight | 537 |
| Pin | 0.98 |
| 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, Pontiac 455, Flat Top, two valve reliefs, 4.185 Bore 4.210 Stroke 1.470 Comp HT
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