Detroit Diesel Series 53 Straight-3 3-53N is an 159 in³ (2.61 L) internal combustion reciprocating Inline 3 engine. It has bore/stroke ratio of 3.875 in × 4.5 in (9.842 cm × 11.43 cm), and uses 21:1 compression. This engine was rated 86 hp (64.13 kW) at 2800 rpm and 201 lbf⋅ft (272.52 N⋅m) of torque at 1500 rpm. It was used in Chevrolet, GMC, and Detroit Diesel cars.
| Parameter | Output |
|---|---|
| Power Rating | 86 hp (64.13 kW) at 2800 RPM |
| Torque Rating | 201 lbf⋅ft at 1500 RPM |
| Parameter | Output |
|---|---|
| Power Rating | 94 hp (70.1 kW) at 2800 RPM |
| Torque Rating | 205 lbf⋅ft at 1500 RPM |
| Parameter | Value |
|---|---|
| Type | Internal Combustion Reciprocating |
| Fuel Type | Diesel |
| Cylinder Configuration | Inline 3 |
| Engine Displacement | 159 in³ |
| Bore | 3.875 in |
| Stroke | 4.5 in |
| Compression Ratio | 21:1 |
| Curb Weight | 1203 lb |
| Curb Idle Speed | 450 RPMs |
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| Parameter | Value |
|---|---|
| Block Material | Cast iron |
| Crankshaft Material | Drop-forged steel |
| Piston Material | Trunk-Arma steel; tin plated; dished head, full skirt |
| Piston Pin Material | Hardened chrome alloy steel; full floating |
| Connecting Rod Material | Drop-forged steel; I-beam section |
| Parameter | Value |
|---|---|
| Head Material | Cast iron |
| Valvetrain Type | OHV |
| Valves per Cylinder | 2 |
| Parameter | Value |
|---|---|
| Air Intake Method | Supercharger Positive Displacement Roots Type Blower |
| Parameter | Value |
|---|---|
| Injection Type | Multi Point |
| Injection Info | 2 vane roots blower, 8.7" hg at 2800 rpm, ratio blower to engine speed is 2.49:1 |