Description
| Bore – Actual: | 4.155 |
| Bore – Oversize: | 0.030 |
| Compression Height: | 1.000 |
| Compression Ratio – Actual: | 9.1:1 @ 70cc |
| Cylinder Head: | Chevrolet 20/30 23 |
| Piston Head Type: | Inverted Dome |
| Piston Pin Diameter: | 0.927 |
| Ring Set Included: | JG31F8-4155-3 |
| Rod Length: | 6.250 |
| Stroke: | 3.480 |
| Weight – Nominal: | 349 |
