Description
| Block Height: | 9.240 |
| Bore – Actual: | 4.128 |
| Bore – Oversize: | .0025 |
| Compression Height: | 1.163 |
| Compression Ratio – Actual: | 11.7:1 @ 70cc |
| Cylinder Head: | GM LS7 / LSX 12 DEG |
| Displacement: | 428 |
| Dome Volume: | -2.0 |
| Piston Head Type: | Flat Top |
| Piston Pin Diameter: | 0.927 |
| Ring Set Recommended: | JG31F8-4125-2 |
| Rod Length: | 6.077 |
| Stroke: | 4.000 |
| Weight – Nominal: | 428 |
