Engine harness wire loom sizes

[MegaCabRam]

I tore all the old brittle stuff off months ago and cleaned up the harness & plugs now I'm getting ready to go back with everything and I need to get some new loom ordered. Dones anyone know the sizes? I think there are 3 different ones...

 

[joefarmer]

I use 1/4, 1/2, 5/8 on the branches and then 3/4 or 1" on the 9" of main section. It also depends on how much of the original harness the customer needed. Sometimes I step down to 3/8" on the cam and crank sensors.

 

[MegaCabRam]

I use 1/4, 1/2, 5/8 on the branches and then 3/4 or 1" on the 9" of main section. It also depends on how much of the original harness the customer needed. Sometimes I step down to 3/8" on the cam and crank sensors.

Thats what i needed, Thanks! I pulled all of the old firewall insulation out as well, what would you recommend to go back with?

 

[joefarmer]

I have no idea on firewall insulation other than I need some more in my Fummins.

 

[WUnderwood]

I'd use at least a few layers of Dynamat