| Engine Family | Big Block Ford 429/460 |
|---|---|
| CID/Ltr | 521/8.5 |
| Bore Inch | 4.390 |
| Bore mm | 111.51 |
| Stroke Inch | 4.300 |
| Stoke mm | 109.22 |
| Rod Length | 6.800 |
| Comp Dist | 1.350 |
| Crown Volume | -3cc |
| CR 1 | 13.4 @ 72cc |
| CR 2 | 12.9 @ 80cc |
| CR 3 | 11.1 @ 84cc |
| Alloy | 4032 |
| Weight | 574 |
| Pin | 0.990 |
| Oil Rails Included | N/A |
| Top Ring | 1/16" |
| 2nd Ring | 1/16" |
| Oil Ring HT | 3/16" |
| Piston Style | Flat Top, one valve relief |
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