Thread: 8.1 vortec

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does anyone know if a vortec 8.1 will fit in a 1995 gmc 2500 van that has a 5.7 in it now.

it would fit in physically. but it just wouldnt be worth it. u would have to fabricate mounts. and then all the computer/electronics... woah that would be major, major hours. it would be just as easy to go buy a truck with an 8.1 and set a van on that frame lol. im not gonna say this is impossible... just well insane. it would be way easier to go and get a 454 7.4 v8 carbed and use that.

if u did want to put an 8.1 in u would pretty much need to go buy a truck with one and completely strip it. the vortec 8.1's are nothing alike the 5.7 350s 04 454's or even the vortec 5.7 and 7.4. they are a complete different design.

I've got a 2500 Suburban with the 8.1. I love it but would really like to have more light to light type speed. It's a beast and can haul anything but I can't get it above 2500rpms to save my life. What's the best way to get more speed and power out of the 8.1!

PS. This is a long term goal so we'll pretend that anything goes for now but be realistic!