Recent content by c6matt

Awesome, not sure how I didnt see it! this looks like what I need, THANKS! TA_V1825

Does anyone know of a manufacter of headers that will fit a 87 grand national? I found these from advance adaptors, but I believe they are for the older Fireball engines. https://www.advanceadapters.com/5745 I also found these, but I think its the same deal. The gaskets for odd fire and...

For anyone searching in the future, no it will not, the pan rail pattern is different.

I am looking at using FWD pan fit my 87 20 bolt turbo engine. I am swapping it into a custom application and it would be so much easier if it were front sump. Looking on summit the pan gasket is the same for the 87 olds tornado (also 20 bolt), and the FWD oil pan/pickup is a full length sump. I...

I have an 87 GN powertrain that I am using with the GN 2004r in a swap. I know the Cluster provides the speed signal to the ECM. Do I need the signal? Not sure if its required for TCC lockup. I do not have/ need cruise control. Is this what I need to get the correct signal to the ECM...

Thanks, appreciate the thoughts. I have confirmed the white wires are the tach. Now working to figure out this. It is fed off the fuel pump relay.

I appreciate that. The harness I have was used in a previous hybrid swap and has seen limited use, additionally I am running a MS3 pro ecu, so the circuit diagnostics will be better than most. Just making sense of the connections, appreciate all the help!

You can see the area of the harness I am trying to figure out here, that 2 prong connector, I think the green one is a tach lead.

What I really think I have is a Turbo Trans am Harness. That is based on the wiper motor plugs being the more modern weather pack and not the flat terminals of the Buick. Not sure of all the harness differences, but the Buick manuals have worked so far. The large red wire in the 2nd photo...

Thank you very much. I only have the engine harness and have been manually pinning it out, this is a big help.

Using a factory harness for a hybrid swap. I have about 95% figured out and labeled, but a few stumping me. Any help is appreciated. Chiltons with the wiring diagram is enroute. White connecter is inside the firewall. Other connectors are about 1 foot to the passenger side from the engine...

Not to hijack, but will a FWD pan fit my 87 20bolt turbo engine? swapping it into a custom application. Looking on summit the pan gasket is the same for the 87 olds tornado, and the oil pan is a full length sump. I am looking to make a mid/front sump pan, and it appears if I can use the FWD pan...