I have a 1990 ss454 pickup with no engine. I just stumbled across a 2002 6.0 engine. If I run the 4l60e trans behind it, what kind of rear wheel horsepower am I looking at? The truck has 4.10 gears in it. Quarter mile times would help as well. Also thought about buying an lt1 and putting a mild crane cam in it, but the 6.0 sounds like a better option. Any help would be greatly appreciated..

thanks

Shawn

 

Sell the 6.0L and put a built 502/502 in it!

 

id watch that 4l60e if you're planning on something that puts out a great deal of hp. They are the bastard stepchilds of gm transmissions. A built one will probably suffice, but not a stock 4l60e behind something that puts out over 400 and is driven hard-semihard

 

With that truck, you're way better off selling the LS-1 stuff and building a killerbig-cube small block with a stout 700R4 behind it.

Though Scream's 502/502 idea definitely would kick butt!

 

PM FarmTruc for info on putting an LS1-based motor into pre-'99...he can give you alot of good info on the swap. Personally though I would stuff a late-model Vortec 454 into it...that will give you enough torque to pull a barn down and they can be built to put out SERIOUS horsepower

 

What do stock LQ4's put out, guys? About 260-275 at the wheels in a 2wd?

I'd guess mid to lower 15's stock, possibly quicker if it's a ringer.

I'd definitely go for an LS1 over an LT1... but the LS1 and old-school crate motor is somewhat of a toss up for me. I'm a bit biased because I have tight emissions here. If you don't, then I'd not towards a crate motor.

 

I have never owned a big block truck, but I have a 6 liter in my 2002 and I have had a '88 and a '94 with Lt1's. I still have the '94 and recently pulled the Lt1 and threw it away, replacing it with a 5.3. The LS1 based motors are light years ahead of the regular old SBC and the LT1 IMO. So I feel I am qualified to give you my suggestions. I would say go with a 502 and some sort of port injection system. Since you are already set up for the big block that is what I would do. The 6 liter is a good choice, but I think you would be disappointed with the LT1.

 

I should tell you the guy that had the truck before me had a 1998 5.7 ls1 in it and it ran really well. I was thinking the 6.0 with the camaro exhaust manifolds might run better than the 5.7 setup. Also before summer hit I may purchase a whipple set up. Street and performance claims they put the lq4 into a 72 chevy and rear wheel dynoed it. It pulled 330 horse back there without all the emissions crap on it. But I am wondering if they are just trying to tie me into it to sell me a wiring harness? What's your guesses on the 5.7 versus the 6.0? I am not set on either one and have the ability to purchase whichever.

thanks

Shawn

 

If you do the 6.0L, just put the lighter-weight 5.3 torque converter in it!

Someone mentioned LT-1 earlier, no truck ever had an LT-1 in it. The trucks stayed with the older Gen 1 small-block design right up to 1999 when they started putting the LS-1's in them.

The advantage to the Gen 1 small block versus LS-1 and LT-1 is the great in-expenisive power parts available for them. With good heads and the right valve-train set-up, the Gen 1 will make more power than the LS-1 6.0L, get decent mileage, and be a dream to work on. I've got a '92 Chevy with a 350, and I've also worked on a couple of LS-1 trucks, and ultimately prefer the options and easo of working on that the older Gen 1 has over the LS-1. Nothing against the LS-1, it's just more cost effective to build a Gen 1 motor for this kind of truck.