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Old 01-25-2014, 05:33 PM   #11
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Re: 366 carb to 427 FI swap!!

Originally Posted by jaredg
Where are you located Nat_ster? A whole yard of buses to pull parts from sounds fun to me!!
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Old 01-25-2014, 06:49 PM   #12
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Re: 366 carb to 427 FI swap!!

Originally Posted by jaredg
Where are you located Nat_ster? A whole yard of buses to pull parts from sounds fun to me!!

I have found a really nice 40,000 mile 1988 427 carb engine that I think I want to just buy and swap in. See how it runs - has to be better and more reliable than my 300K mile 366. I'm gonna probably go this route first. I never really though too much about the diesel thing - though i've been told to stay away from the 8.2 Detroit fuel pincher (head gasket issues etc..)
Sounds like a good plan and for sure what I would do if i were in your shoes. Good luck!!
The journey is the destination...

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Old 01-28-2014, 07:56 PM   #13
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Re: 366 carb to 427 FI swap!!

That 1995 427 is going to have TBI on it which is STUPID simple as far as fuel injection is concerned and there is a wealth of information on the subject. If ever there were a system that a newbie should dive into that would be it. I wouldn't be worried about the transmission either. An AT545 is the most likely transmission and it has nothing other than a detent cable to the best of my knowledge. An MT643 has lockup on the converter, but even then I believe it is just the detent cable that modulates it. If the original 427 ECU was supposed to control a transmission like a 4L80E it won't care if one isn't there.

Just some food for thought...I'm all about fuel injection where ever possible, but a carb might be easiest. Why are you swapping from the 366 in the first place? They are gutless, but the spread from the most gutless skoolie engine to the most powerful is not very wide. I wouldn't worry about reliability at 300,000 miles if it isn't giving warning signs like noise or high oil consumption. They are solid engines.
Skooling state at a time...
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Old 02-18-2015, 09:01 PM   #14
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Mr. Experience couldn't have said it better, I did the conversion from carb to injection and it ain't for no beginner. I must say that I had a big advantage with access to a pile of gm truck information. If I had to do it again I think I would just go look for a cummings powered bus, but thats me. Good luck and i wish you the best.
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