1990 C1500 LQ9 Swap Questions, From Alaska.

[Chevydillan]

Do you already have the DBW pedal and TAC module? If so it's a nice swap and makes the cruise control easy to hook up and works really well. I'm glad I stayed with dbw and wouldn't change it for anything. But if you don't already have the parts then maybe dbc would be easier. Just be sure the computer you use is compatible with the throttle body you go with.

[Big-Sexy907]

I was just going to purchase a DBW pedal and TAC off ebay, they're cheap enough that the point of going cable isn't really worth it.

I was also debating on getting a built 4l80e to go along with it.

[Chevydillan]

Be sure they are compatible with each other. Not all dbw parts are the same. If you could get them all from the same vehicle and one that matches your ECM it would make life easier.
http://www.lt1swap.com/dbw.htm

[12thstreetjunkman]

Im not sure the dbw tb is going to jive with the 700r4. I dont think youll have anyway to actuate the tv linkage. I have an lq9 in a 90 454ss, as others said, 1" setback mounts are what you need. I sold off all the DBW stuff and picked up a cable harness/pcm/tb. I reworked the stock harness and the pcm in is in the dash in the stock location. You are going to want the f-body pan. I have the gmpp hot rod/h3 pan and its still about an inch below the crossmember.

[Big-Sexy907]

Thanks for the reply, I'm still debating on which motor to purchase for the swap... The more I look at it the older DBC setup looks easier, but the DBW seem more through of an installation.

I'm curious, and hopefully you fellas can make some suggestions...

In Alaska we have plentiful access to 4wd transmissions usually leaving 2wd's hard to find. Can anyone reccomend a shop that can sell me a transmission that would mate well with a 6.0 out of a 2002 Chevrolet 1500? The more I think about it I'd like something a little more current than what's presently in the truck.

Im not sure the dbw tb is going to jive with the 700r4. I dont think youll have anyway to actuate the tv linkage. I have an lq9 in a 90 454ss, as others said, 1" setback mounts are what you need. I sold off all the DBW stuff and picked up a cable harness/pcm/tb. I reworked the stock harness and the pcm in is in the dash in the stock location. You are going to want the f-body pan. I have the gmpp hot rod/h3 pan and its still about an inch below the crossmember.

[Big-Sexy907]

Alright fellas, I finally had time to look at some motors, figure things out... and the C1500's stock tbi 350 is about to bite the bullet.

I found a decent looking lq9 out of a 2005 Escalade, for a round $1400. I'm having a heck of a time sourcing a transmission for it, and I'm thinking it would be easier to purchase a 4l80 from Jakes Performance, I think their stage 2 4l802a will do the trick, and the cost isn't something out of this world.

Now with these two major components does anyone foresee any trouble finishing the swap from the tbi? I've hit the point where I'm just about desperate to swap the motor and get the truck running right so I can enjoy it. I absolutely hate how the truck drives at the moment. Swapping to a cable throttle body is going to happen, and the 4l80 is going to be my transmission of choice. Motor and trans will be left stock, I just want to get this thing running after... and I've already got a huge project on my hands at the moment.

[kewljay223]

well like mentioned, no matter which TB you go with, you have to get the correct pcm. i believe some pcm's only control dbc, some only for dbw, and some do both. need to use the s/n to find out. not sure why so many people go with the dbc. dbw is not hard to install at all. just bolt the pedal in place, plug in and your good to go. makes cruise easy. hardest part is bending the pedal to fit around the trans tunnel. but hey, whatever floats your boat. and obviously the computer needs to be flashed for whatever mods you decide to do.

[Big-Sexy907]

Ok fellas, I picked up a 2002 6.0 out of a Yukon Denali, and a 1999 4l80e out of a Express Van, and A ECU with a service number of 12200411. The TB is DBW, and the yard didn't have the TAC module or pedal available. Does anyone know where I could get those parts so I can start working with Nelson on a harness?

Update:

Ordered the following parts off ebay since my local salvage areas don't carry them.

http://www.ebay.com/itm/201243003716...%3AMEBIDX%3AIT
http://www.ebay.com/itm/181395138675...%3AMEBIDX%3AIT
http://www.ebay.com/itm/251672171743...%3AMEBIDX%3AIT

I think this should be about all I need correct?