my first ls swap 1996 2 door Tahoe 4wd 385 Stroker to LQ4 cam headers **pics**

[myzterray]

im new to this forum, im wanting to do this swap on my 97 with a 5.7 in it right now and i was wondering if i need both pcm's?

Nope you don't need both. I was able to Eliminate my stock pcm. If you search through the lsx conversion threads there's a guy called wayoung or something. He put a 4.8 into a 97 suburban. If you read his thread he tells you how to eliminate the stock pcm. I'll look later and see if I can find my notes from when I did the wiring . It's pretty easy because the wires that went to the stick pcm can be removed and plugged right into your ls pcm.

[Lextech]

You don't need to run two PCMs. You also don't need to graft two harnesses. If you are installing a Gen3 DBC engine then you only need to repin your PCM and add about ten wires for the coils. You will need to lengthen your CKP wires and cut the big injector plug off of the original harness and add the 8 individual connectors.

Jeff

[myzterray]

yea or that too

[silverado_lover]

So the trans will shift fine without the PNS switch hooked up? I guess I can go without a gear indicator for a bit

[myzterray]

So the trans will shift fine without the PNS switch hooked up? I guess I can go without a gear indicator for a bit

Yea but you will have to bypass the starter solenoid wire and you won't have back up lights. I need mine to work because my girl will be driving the truck as well and just my luck she doesn't put it in park and starts the truck up in reverse lol...

[myzterray]

So the trans will shift fine without the PNS switch hooked up? I guess I can go without a gear indicator for a bit

Yea but you will have to bypass the starter solenoid wire and you won't have back up lights. I need mine to work because my girl will be driving the truck as well and just my luck she doesn't put it in park and starts the truck up in reverse lol...

[silverado_lover]

Yea but you will have to bypass the starter solenoid wire and you won't have back up lights. I need mine to work because my girl will be driving the truck as well and just my luck she doesn't put it in park and starts the truck up in reverse lol...

Why would I have to bypass the starter solenoid? and my reverse lights were useless anyways lol

[RedHeartbeat]

I had one doing that once and put a come-along on it and the opposite side frame and pulled it over. I didnt want to crush any pipes if I didn't have to.

[fmanak72]

Part Brand: Earl s Performance
Manufacturer Part Number: 9894DBHERL. Did these fuel line fittings work for you??
Other One is 9894dbjerl

[myzterray]

Part Brand: Earl s Performance
Manufacturer Part Number: 9894DBHERL. Did these fuel line fittings work for you??
Other One is 9894dbjerl

i didnt use those.