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Chevrolet 6.2 diesel specs: 379 ci (6.2L) 8-cylinder, 3.98 x 3.82 in (101.1 x 97 mm) bore and stroke. OHV. Rod ratio and piston speed worked out.
The Chevrolet 6.2 diesel is close to square: 3.98" bore against 3.82" stroke, within 4.2%, which splits the difference between a high-revving layout and a torque layout. The 3.82" stroke puts mean piston speed at 4,000 ft/min around 6,300 RPM, which is where a production bottom end is generally considered at its limit. Each of the 8 cylinders displaces 47.4 ci (776 cc).
It is one of 6 engines in the 6.2/6.5 Diesel V8 family, the smallest at 379 ci.
| Displacement | 379 ci / 6.2 L |
|---|---|
| Bore | 3.98" |
| Stroke | 3.82" |
| Cylinders | 8 |
| Bore/stroke ratio | 1.042 |
| Block material | cast iron |
|---|---|
| Head material | cast iron |
| Valvetrain | OHV |
| Fuel type | diesel |
| Bore/stroke character | 1.042 — square — bore and stroke are within 5%, a balanced compromise |
|---|---|
| Mean piston speed at 6,000 RPM | 3,820 ft/min — in the range typical of performance street engines |
| Displacement per cylinder | 47.4 ci |
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