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Chevrolet 376ci (2015) · 365 hp specs: 376 ci (6.2L) 8-cylinder, 4.065 x 3.622 in (103.3 x 92 mm) bore and stroke, 10.7:1 compression. Rated 365 hp, 2015.
The Chevrolet 376ci (2015) · 365 hp is oversquare — the 4.065" bore exceeds the 3.622" stroke by 12.2% — a layout that favors airflow and RPM over leverage at the crank. The 3.622" stroke puts mean piston speed at 4,000 ft/min around 6,650 RPM, which is where a production bottom end is generally considered at its limit. A rod ratio of 1.684 is in the range most production engines fall in. Each of the 8 cylinders displaces 47.0 ci (770 cc).
10.7:1 on iron heads is in the range that usually runs on pump premium; iron holds heat, so treat it as the less forgiving side of that range.
It is one of 2 engines in the Chevrolet 376ci family, all of them 376 ci — the differences between them are in compression, heads and rating, not displacement.
| Displacement | 376 ci / 6.2 L |
|---|---|
| Bore | 4.065" |
| Stroke | 3.622" |
| Cylinders | 8 |
| Configuration | V8 |
| Compression ratio | 10.7:1 |
| Rod length | 6.1" |
| Rod ratio | 1.684 |
| Bore/stroke ratio | 1.122 |
| Piston deck clearance | 0.01" |
| Block material | cast iron |
|---|---|
| Head material | cast iron |
| Valvetrain | OHV |
| Fuel type | gas |
| Advertised HP | 365 hp |
| Years | 2015 |
| Bore/stroke character | 1.122 — oversquare — bore exceeds stroke, which favours higher RPM and larger valves |
|---|---|
| Mean piston speed at 6,000 RPM | 3,622 ft/min — in the range typical of performance street engines |
| Rod ratio | 1.684 — moderate — the range most production V8s fall in |
| Displacement per cylinder | 47.0 ci |
| Static compression | 10.7:1 — in the range that usually runs on pump premium |
| Intake valve diameter | 2.165" |
|---|---|
| Exhaust valve diameter | 1.59" |
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