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.
Overhaul & repair parts- Manufacturer files
- 1 datasheet
- Last updated
- 2026-07-25
- Package route
- gas generator sets
- Mechanical Output
- 183 kW
- Cylinders
- V8
- Displacement
- 8.1 L
- Rated Speed
- 1,500 RPM
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PSI Legacy GM 8.1L V8 overhaul & repair parts
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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.
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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 information is listed for the Legacy GM 8.1L V8?
This record lists U.S. EPA Stationary for the PSI Legacy GM 8.1L V8. Confirm the exact engine family, model year, configuration and applicable manufacturer certification documents before specifying it for a regulated project. A database label does not establish certification of a complete generator package.
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.
Are reference documents available for the Legacy GM 8.1L V8?
This page links reference documents for the PSI Legacy GM 8.1L V8. Check each document's title, model coverage, revision and rating conditions before using it for selection.