Chevrolet gasoline Straight-4 153 CID (2.5 L) 82 hp is an 153 in³ (2.51 L) internal combustion reciprocating Inline 4 engine. It has bore/stroke ratio of 3.875 in × 3.25 in (9.842 cm × 8.26 cm), and uses 8.5:1 compression. This engine was rated 82 hp (61.15 kW) at 4000 rpm and 144 lbf⋅ft (195.24 N⋅m) of torque at 2000 rpm. It was used in Chevrolet and GMC cars.
| Parameter | Output |
|---|---|
| Power Rating | 82 hp (61.15 kW) at 4000 RPM |
| Torque Rating | 144 lbf⋅ft at 2000 RPM |
| Parameter | Value |
|---|---|
| Type | Internal Combustion Reciprocating |
| Fuel Type | Gasoline |
| Cylinder Configuration | Inline 4 |
| Engine Displacement | 153 in³ |
| Bore | 3.875 in |
| Stroke | 3.25 in |
| Compression Ratio | 8.5:1 |
| Firing Order | 1-3-4-2 |
| Curb Weight | 359 lb |
| Curb Idle Speed | 475 RPMs |
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| Parameter | Value |
|---|---|
| Block Material | Cast Iron |
| Parameter | Value |
|---|---|
| Head Material | Cast Iron |
| Valvetrain Type | OHV |
| Valves per Cylinder | 2 |
| Camshaft Material | Cast alloy iron |
| Parameter | Value |
|---|---|
| Air Intake Method | Naturally Aspirated |
| Parameter | Value |
|---|---|
| Injection Type | Carburetor |
| Parameter | Value |
|---|---|
| Intake Opens | 17.5° B.T.D.C. |
| Intake Closes | 54.5° A.B.D.C. |
| Intake Duration | 252° |
| Exhaust Opens | 57° B.B.D.C. |
| Exhaust Closes | 15° A.T.D.C. |
| Exhaust Duration | 252° |
| Valves Overlap | 144° |
| Ignition Timing | 5° B.T.C. |
