kochevy67

I am currently wiring my 67 Chevelle, the question I have is where did you guys enter the interior from the engine compartment with the engine harness. I have a painted firewall and am mounting the ECM and trans controller in the car under the dash. I would really like to see some ideas and pics if possible before drilling any holes. I am **** and like things to look neat. Oh I also am using the factory harness for the LS2. Thanks.

bczee

iTrader: (12)

I did mine directly behind and center of the engine, as my PCM is mounted on the Trans Tunnel, I just unwrapped the harness, moved everything around and re-wrapped it so that it tuck in and go directly into the firewall.

You will need to drill a larger enough hole for the PCM connectors to to fit through. I can not see my harness since it is behind the engine and my Cowl Induction Air Box hides it anyway.

Old Kid

My PCM is also in the glove box area. I have a heater block off plate with a round notch on one side. Pushed the big connectors through the heater opening and then slid the block off plate over the opening capturing the harness with a bushing. Ends up looking like a 1 inch bushed hole when installed. All wires were long enough except for the fan wires. (99 Camaro harness including modified underhood fuse/relay panel moved inside). There is also a company called Seal-It that makes fancy but expensive gromets including split style.

67Mal

This is not a very good pic ,but maybe will give you an idea what I did.
Like BCZEE said go thru directly behind engine, unwrapped harness, and
put PCM above glove box.
I should have went thru about an inch lower, my vacuum port on the
back of my intake is a little too close.

Hope this helps,