Description
| Block Height: | 10.150 |
| Bore – Actual: | 4.280 |
| Bore – Oversize: | .047 |
| Compression Height: | 1.325 |
| Compression Ratio – Actual: | 9.1 @ 88cc |
| Cylinder Head: | 427/428 FE |
| Displacement: | 489 |
| Dome Volume: | -25.0 |
| Piston Head Type: | Inverted Dome |
| Piston Pin Diameter: | 0.990 |
| Ring Set Recommended: | J100F8-4280-5 |
| Rod Length: | 6.700 |
| Stroke: | 4.250 |
| Weight – Nominal: | 521 |
