New Aztec Honda GXV390CC 13HP Retail Kit Propane Engine
Our Take (from the SES Sales Team)
“When a propane floor machine needs a new engine, the right answer is an engine that was converted for propane by people who build propane floor machines. This retail kit is a Honda GXV390 converted by Aztec under its PurePower LPG brand. The base engine is Honda's 389 cc, single cylinder, vertical shaft GXV390, rated by Honda at 13 hp at 3,600 rpm on gasoline. Aztec converts it with a customized carburetion formula and brand name LPG components, tests every engine individually and fits a catalytic muffler on every conversion, whether or not the law requires it. Aztec's conversions carry EPA and CARB certification for indoor use, which is the point of running propane inside a building in the first place. The 390 series also brings the practical details techs look for: cast iron cylinders, a ball bearing supported crankshaft, a dual element air cleaner, dual oil drains and an easy-access spark plug. Before you order, send us the make, model and serial number of your machine so we can confirm this engine and kit fit it.”
A Honda GXV390 converted to propane by Aztec
This is a retail kit of Aztec's PurePower LPG 390 V series engine: a Honda GXV390 converted to run on liquid propane gas. The GXV390 is a 389 cc, single cylinder, vertical shaft engine that Honda rates at 13 hp at 3,600 rpm on gasoline.
Aztec converts each engine with brand name LPG components and a catalytic muffler, and tests every engine individually. PurePower conversions are EPA and CARB certified.
Condition: New.

What a PurePower conversion is
Features
What the 390 V series brings
- ✓Cast iron cylinders
- ✓Heavy duty ball bearing supported crankshaft
- ✓Dual element air cleaner
- ✓Dual oil drains and an easy-access spark plug
- ✓Catalytic muffler on every PurePower conversion
Specifications
PurePower 390 V (Honda GXV390) at a glance
| Models | PurePower 390 V, Honda GXV390, LPG |
|---|---|
| Base engine | Honda GXV390 |
| Fuel | Liquid propane gas (LPG), PurePower conversion |
| Displacement | 389 cc (23.7 cu in) |
| Cylinders | 1 |
| Max horsepower | 13 hp at 3,600 rpm (gasoline rating) |
| Drive shaft | Vertical |
| Bore x stroke | 3.5 x 2.5 in (88 x 64 mm) |
| Oil capacity | 1.2 US qt (1.1 L) |
| Lubrication | Forced splash |
| Dry weight | 71 lb (32 kg) |
| Dimensions (L x W x H) | 16.9 x 15.0 x 16.1 in (43 x 38 x 41 cm) |
| Certifications | EPA and CARB certified LPG conversion |
| Model Numbers | 310-PE-E (Honda GXV390 13 hp retail kit, propane) |
Technical specs may include optional equipment that is not included with all units.
Questions
Honda GXV390 propane engine: common questions
Will this engine fit my machine?
It depends on the machine. Send our team the make, model and serial number of your floor machine and we will confirm the fit before you order.
Is it safe to run indoors?
Aztec's PurePower conversions are EPA and CARB certified, and every one is fitted with a catalytic muffler. Follow your machine's instructions for ventilation and carbon monoxide monitoring.
Why is the horsepower listed as a gasoline rating?
The 13 hp figure is Honda's rating for the GXV390 on gasoline, as Aztec lists it. Output on propane can differ.
What oil does it hold?
Aztec lists an oil capacity of 1.2 US qt (1.1 L) for the 390 V engine.
Not sure this engine fits your machine?
Send our team the make, model and serial number of your propane machine, and we will help you confirm the right engine.
