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Has anyone ever attempted to install a GM 8.1 into one of your trucks? Did a little research and appears I might have to cut the firewall, may have issues clearing my D60 in front, have to use a 12" clutch. I'm looking at investing in one a little time and money, but kinda worried about fit, parts to install and mate up to my SM465/205.
Thanks!
The 8.1 is just a tall deck Big Block Chevy, right? They have been fitted with the big clutches by several people. I had a 396 in mine for a number of years.
However, if you use the Novak kit, the engine will be into the firewall on the passenger head. That happens with regular small blocks as well with that kit.
Rather than cut the firewall, I would move the trans forward a bit and use a longer stub shaft (if retaining the divorced transfer case).
Thanks for the input. More thinking about it and I’m not gonna go with the 8.1. I really want torque and seems to get that, I’d have to really build up a motor or go diesel. That being said, I picked up a ‘91 Dodge 12v Cummins truck as a donner today.
It will be more work and money. However, I think you will be a happy driver when it is done.
Barrman, Didn't you do a Cummins 5.9 swap for someone with your students? Maybe you can give a little insight to the job?Quote:
Originally Posted by Barrman
Quote:
Originally Posted by KKyzer
Good boy ;)
Yes I did Joe. Actually, still doing the truck. However, when it comes to the 6BT. I refer people to Mikel and all his post. He has many more complete and running down the road trucks out there than I do.
He also does a really sweet job of putting an extra axle in them too.;)Quote:
Originally Posted by Barrman
Thank you, but there are cleaner conversions in this site :)
Start cutting on that Dodge. You can use both cross members and trans. and tcase if equipped. A getrag 5 speed centers right up in the trans. tunnel hole. Fan space is tight but a thin electric will work. I am in the middle of installing an aftermarket innercooler where all I had to do is drill two, three inch holes in the upper core support. Its a little noisy but I get between 15-16 mpg and when the tops off who cares!
got the 5.9 started today. FIRST try!!!!!! Primed the lift pump with fresh fuel and it fired right off. My plan is to literally rape this truck of everything I think I can use. It has the D80 rear, will take the rims, drive shafts, Tranny (Getrag 360), gas tank, brake booster and all lines, whole wiring harness (for wires, connectors, relays, etc for any use I want. :lol:), all motor and tranny supports, light bulbs, receiver hitch and 5th wheel mounts. It even has a power back glass and am looking at how I can work that into my hard top. The buzzards will go hungry on this thing once I get done with it.