Description
| Block Height: | 9.000 |
| Bore – Actual: | 4.165 |
| Bore – Oversize: | 0.04 |
| Compression Height: | 1.425 |
| Compression Ratio – Actual: | 11.6944256 @ 76cc |
| Cylinder Head: | Chevrolet 20/30 23 |
| Displacement: | 409 |
| Dome Volume: | 7.3 |
| Piston Head Type: | Dome |
| Piston Pin Diameter: | 0.927 |
| Ring Set Recommended: | J10008-4165-5 |
| Rod Length: | 5.700 |
| Stroke: | 3.750 |
| Weight – Nominal: | 490 |
