Bore, stroke, displacement and compression for all 2 Saturn GM High Value engines, compared side by side. Plus rod ratio and head specs where published.
| Displacement | 213–214 ci |
|---|---|
| Cylinders | 6 |
| Bore | 3.658–3.898" |
| Stroke | 2.992–3.386" |
| Compression | 9.8:1 |
| Advertised power | 200–219 hp |
| Engine | Displacement | Bore × Stroke | CR | HP |
|---|---|---|---|---|
| LZ4 | 214 ci | 3.8976" × 2.9921" | 9.8:1 | 219 |
| LX9 | 213 ci | 3.6575" × 3.3858" | 9.8:1 | 200 |
Both bore and stroke vary across the family, so these are separate castings rather than variations on one block.
All are oversquare — bore larger than stroke, which favours revs over low-end torque.
Each engine page carries rod ratio, mean piston speed, bore/stroke character and cylinder head specs where published, and links into the calculators with its dimensions already filled in.