Earth strap

[fy469rtse]

With alloy heads the heads wouldn't be a good earth for neg battery lead ? Earth strap in to bolt on valley pan  so in to steel, but also need to earth one field on my power master alternator, anyone with ideas for this where you have earths?

[Fred]

I've got alloy heads and the battery earth is connected to the head and the rear strap from firewall is also connected to the head and I have absolutely no problems what so ever.   

[JB400]

Aluminum is one of the best conductors.

[fy469rtse]

Thanks for the reply guys, was not sure on this, electricals not my strong point, but in saying that have studied and done my home work regarding these old wiring systems, good to see previously re-wired cars are the common fixes on this site,

[GreenMachine]

Here's a chart

[fy469rtse]

you learn something new everyday  thanks again guys

[Fred]

Always happy to help.