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BigBlock Chevy Specifications
| CID | Years | Bore | Stroke |
| 348* | 1958-61 | 3.671 | 3.100 |
| 409* | 1961-65 | 3.750 | 3.000 |
| 396 | 1965-69 | 3.500 | 3.480 |
| 402** | 1970-72 | 3.875 | 3.000 |
| 427 | 1967-69 | 4.000 | 3.000 |
| 454 | 1970-98 | 4.000 | 3.000 |
*Has no interchangability with the other bigblocks
**Commonly known as the 396, actual displacment was 402CID
Big Block Chevy Casting Numbers
Soon to come
Big Block Chevy Cylinder Head Casting Numbers
Soon to come