So just adding a shift kit makes it hold another 200rwhp? Does the same apply for the 60Es, or is halved or something in the 60?

 

No the 60's dont do so well with just a kit upgrade it lets em hang with about 400-425rwhp

 

What about something like this: http://cgi.ebay.com/ebaymotors/ws/eB...category=33727

Free shipping and it has a unlimited mile 1 year warranty. Sounds like a good price and good feedback.

 

I asked the seller if it could handle over 400 rwhp/rwtq and he said it was more than strong enough to hold that. There isn't a core charge. It looks like a pretty good deal, but if warranty work was ever needed it'd be a pain in the a$$ to send it back to him.

 

Fact it, its gonna ba a pain in the a$$ to warranty ANY transmission thats not from a local shop. But since you would have your stock transmission, you could temporarily reinstall if you couldn't afford the downtime. But with this guy, you'd save a ton of money, no shipping expenses, and no local sales tax. For the price, I think its worth a chance. I don't know how many guys I've seen spend near $2000 in parts and labor to have the stock transmission rebuilt, only to fail within a few months.

 

Where can you find a good 4l80e though i cant find any for a decent price??

 

I know I already talked to you... but feel free to take a look at the transmission section of our web site.

FLP transmissions

 

I agree. I think it'd be worth a chance.

 

What about an FLP built transmission? Around $2700 complete.

 

A 4L80E is a larger, stronger unit to begin with. It's longer and wider than the 4L60E. Uses clutch packs for shifts. I don't know about 200rwhp more with a shift kit. All they do is the basics for all... increase fluid flow, lube internals, etc. That increases capacity. I don't see why a 4L80E couldn't hold well over 400rwhp totally stock...I'd lay some money it'd be 500 or more stock.

Now, $2000 in labor w/o parts is insane. I'd budget 8-10 hrs to build one right. So ~$70/hr x 8 = $560-700 in labor. I had a nice Ford AOD built for $600 in labor + my own parts.

I say the 4L60E in a truck can hold 400-450rwhp and be reliable, more than that and it's going to be on borrowed time. Weight hurts us more than power. If you're going to want to make 500rwhp or more (in a truck that's crazy due to traction unless you're 4x4) then I'd go with a 4L80E.

1st gear is taller like a 2.48:1 but ****, my AOD in the F150 has a 2.40:1 first gear also. BUT once you're out of 1st, the rest of the ratios are pretty close. There's also a setup out that widens the 1st and 2nd ratios in the 4L80E for around $500 I think it is.

I haven't ruled out a 4L80E swap yet in my truck...but there's still a few things that need to be done to make it a simple swap. The parts to adapt it need to be more readily available and not have to fab up an x-member. If I do indeed go that route in the future...I will have it built with the wide ratio gear set.

Hell by the time you're at the limits of the 4L60E you're going to be at the limits of the rest of the 1/2 ton driveline in 2WD. 8.5" rear end isn't going to like a few 500rwhp launches for very long. Frame may flex. Lots of axle wrap. Stock truck intake will be your restriction. Durability of stock motor may be compromised. Unless you're 4WD it's not going to be too much fun on the streets.

**** 400rwhp, 4WD, 4.56:1 gears, 33" tires, and a fat stall would scare the **** out of pretty much every vehicle on the street. You'd take 85% of them in a run off a stop light, and 95% from a dig on street tires. It'd take not only a quick car to get ya but a GREAT driver. Almost all the peeps with fast cars that I've ran into can't drive.

My 2¢ FWIW...