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The Daily Insight

How many horsepower does an 8-1 Vortec motorhome have?

Author

Nathan Sanders

Published Feb 07, 2026

How many horsepower does an 8-1 Vortec motorhome have?

In 06 they redesigned the heads on the v-10 to improve the power. The 2 engines are now within 5 ft lbs of torque of each other. The v-10 is 362 hp 457 ft lbs of torque. The 8.1 is 340 hp 452 ft lbs At what RPM for each engine??

Is the Chevy 8.1L Vortec a reliable engine?

However, the extra money spent on gasoline probably evens out when you factor in the 8.1 being $8-10k cheaper than the Duramax diesel option. The 8.1 Vortec is named the “Workhorse” and this name is completely true. Overall, these engines are extremely reliable and are built to last beyond 250,000 miles.

What kind of engine does a workhorse Class A motorhome have?

Workhorse Class A Motorhome I have a 8.1 liter GM engine in… I have a 8.1 liter… I have a 8.1 liter GM engine in a 2005 Workhorse chassis motorhome. The engine has Banks low restriction air intake and exhaust systems. I frequently get a 0131 O2 sensor low voltage code. The engine will immediately start to run badly.

Why did I get a GM 8.1L engine?

Just things to look out for, and all things that are expected. Enjoy, and Happy Trails. I chose to get the 8.1L because it has greater torque (torque is what turns the wheels, not HP) at a lower RPM. What that means is that you will not be downshifting every time you go up a small hill.

In 06 they redesigned the heads on the v-10 to improve the power. The 2 engines are now within 5 ft lbs of torque of each other. The v-10 is 362 hp 457 ft lbs of torque. The 8.1 is 340 hp 452 ft lbs At what RPM for each engine??

However, the extra money spent on gasoline probably evens out when you factor in the 8.1 being $8-10k cheaper than the Duramax diesel option. The 8.1 Vortec is named the “Workhorse” and this name is completely true. Overall, these engines are extremely reliable and are built to last beyond 250,000 miles.

Workhorse Class A Motorhome I have a 8.1 liter GM engine in… I have a 8.1 liter… I have a 8.1 liter GM engine in a 2005 Workhorse chassis motorhome. The engine has Banks low restriction air intake and exhaust systems. I frequently get a 0131 O2 sensor low voltage code. The engine will immediately start to run badly.

What kind of engine does a Class A motorhome have?

Larger motorhomes, higher trim levels, are built on W-22 and W-24, not on Ford. Have heard two versions of the story on this engine in a motorhome. Some say it does not have the power of a V10. Others say it is more powerful.

What kind of car is a GM Vortec 8.1?

We have a 38′ Challenger 8.1 6 speed pulling a HHR and am getting 7-8 mpg no problem with power. At 65 mph it is running about 2000 rpms. 2008 Damon Challenger 378 on Workhorse chassis, 2008 HHR panel toad.

What kind of car is a Fleetwood 8.1?

2007 Fleetwood on a 2006 W20 chassis. 8.1/Allison with 18000 miles, I get 6 to 8 MPG and tow a 2003 Nissan Xterra most of the time. Plenty of power and I love the Allison with the grade brake and 2 overdrives. Brake recall still needs done and I had the cluster changed under warranty.

What kind of warranty does the Vortec 8.1 have?

IMHO it is a bulletproof setup. The 8.1 has a 3yr/36000 mile warranty and the Allison is 5yr/200000 mile warranty. If the floor plan works and the price is right I’d have no trouble going with the Safari.