1995 C2500 ls1 swap

[GreyChevy]

Gonna sound good! Get that thing on the road already!

[chvy=power]

well guys shes on the road! Got if finished up saturday...took a lot of tuning to get it running half decent. But man is she running great now! it will blow the tires off at 50mph! I raced my old 08 sierra with a 370 LY6, 4.11 gear, 3200 stall, etc and flat blew its doors off! I hope to get the tuned dialed in and hit the dyno soon...im thinking itll put down around 450-470rwhp. The NV4500 DOES NOT like high rpm 1-2 shifting lol it will not go into 1st or 2nd gear at anything over about 3500 rpm. 3rd and 4th seem to shift flawlessly at high rpm. All my factory gauges work except the tach...not really sure why. It only goes to 5000 rpm anyways so i planned on going with an aftermarket tach.

I snapped a few pics of the somewhat finished install. Still need to clean up some wires and do a few other little things. Here she is

[Jeebalow]

That's awesome! Videos of said race or it didn't happen... And blowing tires of at 50 as well.

What's the final spec list on the swap?

Must be tons of fun! You could also get a 96+ gauge cluster and put it in. The vortec sbc had a red line of 6000. I found a police cluster locally with 6K redline and 130MPH speedo that I will be using. If you get I think 98+ you have to solder a jumper for it to work. There's lots of info on this on the forums (not just this one).

[chvy=power]

Yea I def need to get some videos! I'll work on getting some for yall to watch.

Is the 96+ cluster swap a direct swap???

[Jeebalow]

Unless you go above 98, it is. After 98 or 99 you have to add the jumper on there. You can also swap over the odometer so the mileage reads the same.

[chvy=power]

Awesome....so say I swapped in a 96+ cluster, do you happen to know if I can just hook the white tach wire from the new pcm to the back of the cluster? If so do you know what color wire I need to hook to and what pin location it is?

Here's the only vid I have for now.... Took this right before I did the exhaust. This is open headers and the tune was way off. She smooths out and starts hittin one wicked lick

http://youtu.be/SXvzvjo7Cg4

[Jeebalow]

The cluster is a direct bolt in, you don't change the connector so the wires all remain the same. Yes, you can hook the white tack wire to the wires going into the connector that goes to the cluster. According to the wiring diagram from alldatadiy, and how I wired mine, it's the white wire in pin #6 on the back of the cluster. This white wire originally came from the ignition coil on your TBI motor. If you still have that wire in the engine bay you can splice into that and there will be no need to go into the cab.


Here's some info on the police cluster, it's hard to find and you will need the jumper on these. To be safe just look for a 96-97 cluster then it should be a direct swap IIRC, but do some searching first don't take my word for it.
http://www.gmt400.com/forum/showthre...ap-Step-Motors