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can you get a bell to do the 518 to a big block?

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Yep, there's an Ultrabell for this.

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my bud John Cope is working some numbers on the 4l80 now.

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your bud

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Over in LSx'ville, Jakes Performance is one of the go-to guys for 4L80e stuff.
Ultimate, Circle D, and Yank are good choices for converters.

You can very easily set it up for full manual and omit the computer. Just use a switch for the extra features you want.

http://jakesperformance.com/4L80E.html

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Not to hi-jack, but are the 518's similar in strength to a 727, just with an overdrive? or is there more that is different?

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It is a 727 but with OD

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after 3 days of consideration

I have figured my car put 1 million more engine revolutions on it during Drag Week than it would have if I had a .75 OD in it

I also figured out my fuel consumption per engine revolution.

I figured out that the OD should add 3.3 MPG to my current setup

I say that I would drive my car more than I do if it got better fuel mileage but the $300 a year in fuel savings doesn't pay for the cost of the 4l80e swap.

so for me, this trans swap is dead. plan on putting my 426 gen 3 hemi in the car. slap a little carb on it and see what kind of fuel mileage I can get out of it and hopefully make it daily driver capable

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Your only figuring in the mileage aspect... is a
million more revs worth something(meaning more frequent
tear downs)... I have about $350 into my 518... not
counting the drive shaft which I had to get either way

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after 3 days of consideration

I have figured my car put 1 million more engine revolutions on it during Drag Week than it would have if I had a .75 OD in it

I also figured out my fuel consumption per engine revolution.

I figured out that the OD should add 3.3 MPG to my current setup

I say that I would drive my car more than I do if it got better fuel mileage but the $300 a year in fuel savings doesn't pay for the cost of the 4l80e swap.

so for me, this trans swap is dead. plan on putting my 426 gen 3 hemi in the car. slap a little carb on it and see what kind of fuel mileage I can get out of it and hopefully make it daily driver capable

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Your only figuring in the mileage aspect... is a
million more revs worth something(meaning more frequent
tear downs)... I have about $350 into my 518... not
counting the drive shaft which I had to get either way

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yes, I know. The 518 is still an option if I can find one, but from a bunch of research on moparts, the 518 can really rob a lot of ET. then I had to ask myself "Ray, if I told you that if you took that 518 out and put in a 727 you would pick up 3 tenths, would you do it?" and I answered "hell ya, 3 tenths is huge. You mean to tell me that a 727 would pick up that much?" this conversation with no one went on for awhile last night

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Can you post this .3 difference between the 2 trans..
I know its heavier but I dont see .3 between them

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If you do a search in the google bar up top you will find the same threads I did. I have spoke to many trans guys about this over the past 4 days. these trans have heavy internal parts and rob a percentage of horsepower. as the HP goes up so does the amount of HP they rob. the 518 is worse than the 4l80 from what I was told but both will do it. the initial acceleration of such heavy parts is the problem, once you get them spinning then its fine, till you go to stop. and it starts all over again

have you taken your car to the track yet? does it run what it should?