What all does an engine swap entail?

[oil pan 4]

Sounds like you want a 6.5L

[drmiller100]

Originally Posted by oil pan 4

Sounds like you want a 6.5L

the 6.5 is worth more now then it ever was before.

scrap metal is at an all time high.

[Waerben]

The 6.5 is much to large for this application. I need something small and efficient for moving me and other people. I really don't want a big old Detroit.. I really think the 3.9 is in my best interest. Even though it will cost more in the beginning.

[oil pan 4]

Well good luck with that.
Do you have the equipment required to make your own brackets?
If you cant build your own brackets and most of your adaptors you can forget about it being cost effective.

Originally Posted by drmiller100

the 6.5 is worth more now then it ever was before.

scrap metal is at an all time high.

If you have a 6.5 with a DB4 serries electronicly controlled pump and GMx serries turbo I would say you are not far off.
I picked the best OE 6.2/6.5L parts and aftermarket parts from 1982-now to build what I have and it goes pretty nice.

[Waerben]

Honestly I don't have the nessary equipment to fabricate all the nessary brackets and adapters myself. However my uncle had a machine shop that I could use. But I do belive you are right, would the 6.5 or the 6.2 be a direct bolt in engine? I mean being a diesel I would have to mod the fuel delivery system. But would the engine drop right in and bolt on to my 4l60e and work with it without a transmission controller? I everything would mount up and work right away? Just throw the 6.5 in?

[drmiller100]

Originally Posted by Waerben

Honestly I don't have the nessary equipment to fabricate all the nessary brackets and adapters myself. However my uncle had a machine shop that I could use. But I do belive you are right, would the 6.5 or the 6.2 be a direct bolt in engine? I mean being a diesel I would have to mod the fuel delivery system. But would the engine drop right in and bolt on to my 4l60e and work with it without a transmission controller? I everything would mount up and work right away? Just throw the 6.5 in?

No. But you can find a used suburban with the 6.5 for probably 1500 bucks.

if I wanted such a thing I'd look for a 93 - newer body style with the marginally better engine (older).

[Waerben]

Alright I've been looking around a lot on the internet today and i have come to find out that I would prefer to use the 6.2 instead of the 6.5 because its naturally aspirated and will directly bolt onto my 4L60e, however the 6.2 it totally mechanical and so I would still need some kind of transmission controller.

Differences between gas & diesel 700r4's [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

I read this and it seems to have mixed opinions.. I just had a reality check. There is no way I could afford the Isuzu swap at this point however something that is direct bolt on and that all I would have to jack with is the electronics of the transmission shift points ect, Seems much more do-able. Even if it wasn't meant for the 4L60e the 700r4 isn't that different. So it truly does seem much more simple and a lot more practical than swapping in an Isuzu.

[roosterk0031]

Have you consided just downsizing the gas to 4.3 v6. All the accesories will fit, I would think it would pick up some MPG, could even make a FFV out of it.

[oil pan 4]

4.3L vs 350 all else the same you get a small improvement.

Originally Posted by Waerben

would the 6.5 or the 6.2 be a direct bolt in engine?

Yes, the SBC, BBC and 6.2/6.5L share the same motor mount locations and transmission bolt pattern.

Originally Posted by Waerben

I mean being a diesel I would have to mod the fuel delivery system.

Not as much as you would think, ethere way you have to convert it to go diesel. You can get a fuel tank unit for a diesel or an older carbed truck.

Originally Posted by Waerben

But would the engine drop right in and bolt on to my 4l60e and work with it without a transmission controller? I everything would mount up and work right away? Just throw the 6.5 in?

You might need a transmission controler I think the gas engines ECU controls both the engine and the transmission.
Yes you may need an adaptor or different torque converter to go from an older non-L460E engine to a L460E transmission. Other wise the trans and bell housing will bolt right up.
It would be easier to put a TH700R4 in there, I am not sure of all the details when mateing an older engine to newer trans.
TH700R4 transmissions are cheap.
Drive shafts are the same between TH700 and L460E.

Originally Posted by Waerben

I would prefer to use the 6.2 instead of the 6.5 because its naturally aspirated

The 6.2/6.5 are so popular because you can run both of them N/A or turbocharged, they can be electronicly controlled or mechanical.

I think I have the best mix of 1982-2000 6.2 and 6.5 parts for a N/A engine.
I can give you a break down.
Right now the only part I would like to have different is a newer style mechanical injector pump. I can change that when ever.
I had one of the best 6.2L engines for fuel economy and will tell all.

[Waerben]

Wow. This suddenly sounds much simpler than I'd first imagined. The transmission doesnt sound like that big of an issue. And please. I would love to know all the details of a N/A 6.2 fuel efficiency engine build. How hard would it be to come by a 6.2? In decent condition. I live in Texas near san antoino. How much do you think it would cost to buy a decent running one and then all the mods needed for efficency?