![8.1 vortec mpg 2500hd 8.1 vortec mpg 2500hd](https://www.offshoreonly.com/forums/attachments/general-boating-discussion/22848d1048279298-chevy-8-1-vortec-fuel-mileage-dsc03910-small-.jpg)
Most of the trucks that are equipped with the Vortec 8.1 could’ve been equipped with a Duramax instead. If you want to go fast their bigger camshaft and 540 strokers will make big power for you. So, Raylar Engineering makes a bunch of really cool parts to wake your Vortec 8100 up, but is it worth it? If you’re just towing their towing camshaft and the 511 stroker kit will be a killer combo for you. RELATED: 6BT Cummins: Everything you Need to Know Unfortunately, the stock Vortec internal components are fairly weak so any heavy modifications will require a forged bottom end. Their stage 3 package 540ci engine will make an insane 685 horsepower and 680 lb-ft of torque. They also offer everything from camshafts to blowers. They have developed multiple stroker kits to take it from 496ci to 511ci or all the way to 540ci.
![8.1 vortec mpg 2500hd 8.1 vortec mpg 2500hd](https://automanager.blob.core.windows.net/wmphotos/019736/62153a117b81c14badab561fa3d5dba0/6e392fb99e_800.jpg)
Raylar Engineering is pretty much the only company interested in the Vortec 8100. However, this is one company who offers some very interesting Vortec 8100 parts.
![8.1 vortec mpg 2500hd 8.1 vortec mpg 2500hd](https://i.ytimg.com/vi/446vmT15F-M/maxresdefault.jpg)
Like I said earlier, standard big block parts won’t fit on the Vortec 8100, so the performance parts available for it are close to none. The Vortec 8100 isn’t super impressive in stock trim, but it’s designed for heavy duty work. Other versions of the Vortec 8100 make as much as 550 horsepower and 690 lb-ft. It makes an impressive 450 lb-ft way down low in the RPM range. “Why does an 8.1L only make 330 horsepower?” If this was a performance application that would be abysmal, however, this is a heavy duty application. So, how does the Vortec 8100 do? For this, we’ll look at the performance data for the GM truck applications. Torque at low RPM is one of the single most important factors of a heavy-duty engine. If the Vortec 8100 is supposed to be an alternative to the Duramax engine, then it must create lots of torque. RELATED: 4BT Cummins: Everything you Need to Know The coolest application would have to be the T-98 Kombat armored vehicle. Chevrolet offered it in all of their heavy duty applications. But, it was also used in a few other applications:Īs you can see, the Vortec 8100 was used in a host of different vehicles. Like I mentioned above, the Vortec 8100 was used in GM pickup trucks as a diesel alternative.
![8.1 vortec mpg 2500hd 8.1 vortec mpg 2500hd](https://car-from-uk.com/ebay/carphotos/full/ebay5398.jpg)
The Chevy C20 my father owns has a 454ci big block, and man can that thing pull. Old truck guys are very familiar with the good old Chevy big block.