alternator wiring

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

ds454ss

Newbie
Joined
Dec 20, 2019
Messages
9
Reaction score
3
Location
13323
I have a 1990 454ss. Can I use a single wire alternator? if so what do i do with the exciter wire. Truck will be carbureted. Would i want 100 amp or 140 alternator?
 

MSCustoms

Its not just a Truck
Joined
Jan 14, 2013
Messages
3,353
Reaction score
195
Yes, if you hook it up to the wrong pin then it wont charge
 

Ehall8702

I'm Awesome
Joined
Sep 25, 2019
Messages
427
Reaction score
364
Location
UP Michigan
Wouldn't you want the Exciter wire hooked to a keyed power source? If it's bridged to a constant power it'll always be "engaged" and basically be a constant draw on ur battery. I've seen diodes mess up and with car off u can hear the alt buzzing trying to turn because it's engaged without engine running.
 
Top