PSI INDUSTRIAL ENGINES
DiscontinuedPSI 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.
Cylinders / Config
V8 Turbocharged
Displacement
8.1 L
Mechanical & Electrical 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.
Is a datasheet available for the Legacy GM 8.1L V8?
Yes — an official PSI datasheet for the PSI Legacy GM 8.1L V8 can be downloaded from this page.