PSI
PSI Legacy GM 8.1L V8
Legacy Industrial
PSI Legacy GM 8.1L V8 is the earlier GM-derived spark-ignited industrial platform, distinct from PSI's current inline-six 8.1 L engine. EPA lineage 9PSIB8.10EMT identifies an 8.1 L eight-cylinder turbocharged stationary natural-gas configuration at 1800 RPM. The 182.8 kW value is the EPA certification power node, not a generator-set electrical output.
- Electrical Output
- 183 kW
- Cylinders
- V8
- Displacement
- 8.1 L
- Rated Speed
- 1,500 RPM
PSI Legacy GM 8.1L V8 generator set context
The PSI Legacy GM 8.1L V8 is listed here as a natural gas generator-drive engine for 50 Hz generator sets, with a headline 183 kW / standby rating. Use this page to compare the published engine output, electrical kWe/kVA ratings, emissions level, datasheet availability, and neighboring models before specifying an alternator, controller, enclosure, voltage, and compliance package.
Also searched as
Technical Specifications
| Brand | PSI |
| Model | Legacy GM 8.1L V8 |
| Series | Legacy Industrial |
| Configuration | V8 Turbocharged |
| Cylinders | 8 |
| Displacement | 8.1 L |
| Fuel Type | Natural Gas |
| Ignition Type | Spark Ignition |
| Cooling Method | Liquid-Cooled |
| Emissions Standard | U.S. EPA Stationary |
| Certifications | U.S. EPA Stationary, U.S. EPA NSPS Subpart JJJJ |
| Country of Origin | United States |
| Year Introduced | 2011 |
| Year Discontinued | 2012 |
Frequently asked questions
What fuel does the PSI Legacy GM 8.1L V8 use?
The PSI Legacy GM 8.1L V8 is a Natural Gas generator-set engine.
What is the displacement and cylinder configuration of the Legacy GM 8.1L V8?
The PSI Legacy GM 8.1L V8 is a V8 (8-cylinder) engine with a displacement of 8.1 L.
What emissions standard does the Legacy GM 8.1L V8 meet?
The PSI Legacy GM 8.1L V8 is certified to U.S. EPA Stationary emissions standards.
Is the Legacy GM 8.1L V8 still in production?
No — the PSI Legacy GM 8.1L V8 is discontinued (production ended around 2012). Its specifications and datasheets remain archived here for reference.
Reference
- Canonical page
- /engines/psi-legacy-gm-8-1l-v8
- Last database update
- 2026-07-25
- Manufacturer files
- No datasheet linked yet
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