Will a 4L60E hold up?
02-05-2009, 08:22 PM
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Will a 4L60E hold up?
Just checking to see if a built 4L60E can handle 500-550 rwhp. This is going to be my daily driver and maybe a track run every once in a while. I will be running a maggie 112 with a built 6.0 in a NNBS Sierra 2wd crew cab. Also what size TC would yall recommend. If I have to go with a 80E how much trouble is it going to be to put one in my truck.Thanks
02-06-2009, 01:56 AM
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Yes PROPERLY prepared will work no problem; but 4L60s are pretty unforgiving as well, get the parts selection and/or prep clearances wrong and you'll have it back out in 5-10K miles. There is no need for an 80E on a Radix truck *especially* a 2WD truck and you DON'T want to pay the gas mileage penalty with that inefficient trans, I would highly discourage a 80E swap in your case.
Mr. P.
Sorry forgot to add, converter for a Radix = 2600 minimum, 2800 for hot-street, 3000-3200 race specific depending on the combo. Remember that the stator rate will affect the converter's behavior quite a bit, not all 2800 converters are the same! As this is your DD I will advise not to waste your money on a Yank product. You may find that some converter companies make a very 'tight' 3000 that drives similarly to another companies 'loose' 2600-2800. Again PM me if you are interested in more discussion.
Mr. P.
Sorry forgot to add, converter for a Radix = 2600 minimum, 2800 for hot-street, 3000-3200 race specific depending on the combo. Remember that the stator rate will affect the converter's behavior quite a bit, not all 2800 converters are the same! As this is your DD I will advise not to waste your money on a Yank product. You may find that some converter companies make a very 'tight' 3000 that drives similarly to another companies 'loose' 2600-2800. Again PM me if you are interested in more discussion.
Last edited by XLR8NSS; 02-06-2009 at 12:27 PM.
02-06-2009, 07:28 AM
#3
2600 Vig here. IMHO, no matter how well u build a 60, its a failure waiting to happen @ >500rwhp. Some last longer than others and some claim success, but its inevitable until proven diff. Buy the 80, build it right the first time and u won't have to worry. Of course tradeoff is parasitic power loss, and maybe mileage, but I think the latter in minor. A built 60 will cost as mush as an 80, and lives on borrowed time. R/
02-06-2009, 07:38 AM
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02-06-2009, 08:16 AM
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I know FLT and Performabuilt advertise their 4L60e's are capable of 600-700hp. Is this not true? The price difference in the 60e and 80e are not much, but I'm hearing all the other extras that go along with a 60e to 80e swap is what drives the price up. Do any of you know someone that has done the swap in a nnbs truck that I could talk with to see how much trouble and cost this would be.
02-06-2009, 08:25 AM
#7
I know FLT and Performabuilt advertise their 4L60e's are capable of 600-700hp. Is this not true? The price difference in the 60e and 80e are not much, but I'm hearing all the other extras that go along with a 60e to 80e swap is what drives the price up. Do any of you know someone that has done the swap in a nnbs truck that I could talk with to see how much trouble and cost this would be.
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02-06-2009, 09:27 AM
#9
My FLT 65E is working on 2 (or is it 3 lol) years old with nothing but pure abuse, nitrous, turbo, n/a... You name it, nonnie can vouch, I'm hard on stuff. 
Mr P, I don't know where you're getting your info, but a lot of that is incorrect... Especially the part about a Yank converter being junk... I had a SS3600 in my truck from when my FLT went in brand new, until this week... The only reason for the change is I wanted a different stall speed with my new setup and got a hell of a deal, if it hadn't been for these two things, I would have been back with Yank. The new one is a PI BTW...
The setup in my sig isn't what's in the truck
That being said, for the OP, a nicely built 60 will do you fine, it depends on the weight of your truck and driving habits mostly IMO...
Mr P, I don't know where you're getting your info, but a lot of that is incorrect... Especially the part about a Yank converter being junk... I had a SS3600 in my truck from when my FLT went in brand new, until this week... The only reason for the change is I wanted a different stall speed with my new setup and got a hell of a deal, if it hadn't been for these two things, I would have been back with Yank. The new one is a PI BTW...
The setup in my sig isn't what's in the truck
That being said, for the OP, a nicely built 60 will do you fine, it depends on the weight of your truck and driving habits mostly IMO...
02-06-2009, 10:01 AM
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I dont abuse my truck. Being this is my dd I cant afford to have it sitting around waiting to be fixed. I may take it to the track once or twice and thats it, and definitely not going to be doing any street racing. I just like the idea of being able to suprise a few people when the need arises.