Vortec to 0411 swap and info thread!

[Lextech]

Jeff,
Just FYI the swap worked out. The G-series has about 3-4 wires missing from your chart and I have one left over wire not mentioned. Everything seems to work fine without it????

Glad it worked out. You are the first guy that I know of that has done the swap to a 97 Express Van.

Jeff

[Fast355]

Glad it worked out. You are the first guy that I know of that has done the swap to a 97 Express Van.

Jeff

I like it, runs good. Now its ready for a mild crane cam (to replace the LT4), doug throley tri-Ys and a nice mellow exhaust.

http://www.youtube.com/watch?v=ci9azwQY7Pg

[EagleMark]

Little dark on the video... but the lower idle and smoother was the first thing I noticed!

I never noticed beofre the express van grill, but in your video I could only see your grill, it looks just like the grill on my 98 Silverado.

[EyesofThunder]

I am pulling a trailer this weekend to St. Louis, wondering about getting this done before I go? I have the parts, might have to scrounge a PCM....

Can you get away with NOT putting in the PRNDL wires temporarily?

[Lextech]

I am pulling a trailer this weekend to St. Louis, wondering about getting this done before I go? I have the parts, might have to scrounge a PCM....

Can you get away with NOT putting in the PRNDL wires temporarily?

Yes, But it would be "BEST" to install them when you get the chance. If you get a P1336 code for the Crank Relearn Procedure, you will need those 4 wires hooked up to do the relearn. You can cheat and jump a couple of wires for the relearn---But it is best to hook them up.

Jeff

[Fast355]

Yes, But it would be "BEST" to install them when you get the chance. If you get a P1336 code for the Crank Relearn Procedure, you will need those 4 wires hooked up to do the relearn. You can cheat and jump a couple of wires for the relearn---But it is best to hook them up.

Jeff

I did not have to have them hooked up to do a Crank Relearn and still do not have them hooked up. In HP Tuners you have an option for a P/N switch, just choose NONE and it will use the internal switches in the 4L60E. My Idle speeds respond perfectly and the ECM knows which gear it is in.

[EagleMark]

Well that would take out the hardest part of the swap! Fat chance of getting EFI Live to add anything, but if we had a disassembly we could write a CAX file to add the parameter? You know of any LS1b dissasemblies started?

Haven't looked to see if TunerCat has this option?