What’s this little box on the firewall for? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

4Eyedturd · 08-29-2021, 05:25 PM

Truck is a 72, was a 6cyl/3speed and in the process of V8/auto swapping it. The bundle of wires run to it and a small square plug close to that box that I’m trying to identify.

**Accelo** · 08-29-2021, 05:42 PM

transmission spark delay.
I had the same 6cyl/3speed in my 70.
You can forget it for a swap.
Unless you are going to a completely stock 1972 V8 set up.

4Eyedturd · 08-29-2021, 07:18 PM

Thanks!! It’s coming off

08-29-2021, 05:25 PM	#1
4Eyedturd Registered User Join Date: Apr 2021 Location: Waco, TX Posts: 5	What’s this little box on the firewall for? Truck is a 72, was a 6cyl/3speed and in the process of V8/auto swapping it. The bundle of wires run to it and a small square plug close to that box that I’m trying to identify. Attached Images

08-29-2021, 05:42 PM	#2
Accelo Senior Member Join Date: Mar 2015 Location: washington Posts: 2,301	Re: What’s this little box on the firewall for? transmission spark delay. I had the same 6cyl/3speed in my 70. You can forget it for a swap. Unless you are going to a completely stock 1972 V8 set up. Last edited by Accelo; 08-29-2021 at 05:54 PM.

08-29-2021, 07:18 PM	#3
4Eyedturd Registered User Join Date: Apr 2021 Location: Waco, TX Posts: 5	Re: What’s this little box on the firewall for? Thanks!! It’s coming off



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