71K20chevy

I'm planning a 6.0/4L80E swap in the future for my '71 K20. The 6.0 (most likely LQ4 unless I can find a deal on a LQ9) will have a cam (TSP 224R or 228R), long tubes, and a tune. I know the 4L80E has a relatively low stall speed, so with the mods mentioned above, will I need to go higher? I'm thinking I will have to, as this is going into a 5000 lb truck after all. I don't really want to spend the money seeing as 4L80 converters are brutally expensive, but I'd rather do it before the swap happens rather than find out the engine is a dog afterwards.


So, if I do have to change it, what would be a recommended stall?


Thanks!

71K20chevy

Bump...I'm sure somebody knows this!

metlic53

iTrader: (1)

3600 at least with lockup.

71K20chevy

I'm looking at Revmax converters on Fleabay, and some of them say not to be used in trucks. Why is this? Too much weight?

FTICONVERTERS

iTrader: (3)

Give me a call and I can help. We have several different converters that will fit the bill for your setup.

Greg

71K20chevy

Thanks, I will keep you in mind when it comes time for the swap.

metlic53

iTrader: (1)

Circle D==FTI==Yank. Read reviews on the web and make a decision. I have read some good things about Revmax but have no experience myself. I have run a couple of CircleDs with no complaints at all.

turyg ls1

iTrader: (2)

I got my FTI 3800 converter on Thursday. Spoke to Greg the first time & then called again to order & spoke to Troy. Very helpful guys & hooked it up too! Oh the only bad thing was, they forgot to send me a t-shirt. Lol I still want it!!