Ground Strap question for wiring

[55Mach1 10]

Being that the negative battery wire is dirctly grounded to the engine block do i still need the thin gauge ground that is attached to rear of my passengerncylinder head to th firewall right next to the blower motor assembly.

[dennyb68 11]

Yes that is your chassis ground

[therebel 10]

I ran a ground to the engine block and then a ground from that mount to the frame right in front of the shock tower,

[danno 128]

Yes, you need it. You might find that your car works without it, but that is because it is using other means ( like the throttle cable) to complete the circuit between you engine and the chassis. But without it, you are looking for the possibility of trouble in the future.

[LoneWolf2U 136]

Not only should you have that wire connected from block to firewall. You should add on one from the battey ground cable end to the rad support.

One on firewall helps the guages read correctly and the rad support ground helps the lighing system connections.

[bomccorkle 12]

No such thing as overbuilt electrical systems. I always figure what I think I need then double or triple it(you always find something else to add...)

[55Mach1 10]

Guys can i ground this to the back of my aluminum cylinder heads or does it have to go to the cast iron block? I just dont know where to out it because th wire is so short and i think previously it was onmthe rear cylinder head.

[bomccorkle 12]

Should work either way. Aluminum is still conductive.

[sportsroof69 13]

I have a ground strap on a head, on the other side of the block, and one on the trans. You can never have too many grounds.