bullet1

would like to add hei to 68 vert but in reading how to i need to go to internal regulator alternator first.what is the best way to do this can i just go to a newer style alternator and just use two wires or is there more to this conversion?
thanks

ijasond

Yep. If you use the 12si style it's really easy to do. You can buy the correct plug to fit the alternator(depending on which alternator you use) over the counter at most auto parts stores for about $3. Hook up the two wires and leave the rest off.

svnt442

You have to jump the regulator connection on the firewall. I don't know the procedure, but someone here should. I think Joe Padavano might.

joe_padavano

Here ya go:

https://classicoldsmobile.com/forums/69208-post12.html

bullet1

what size diode do i need to add or try first without? thanks again

stellar

3 amp should work good.

Aceshigh

I put a CS130 140amp chrome alternator in my '70 442 clone.
It's a piece of cake. That wiring diagram posted makes it more complicated then it is.
You eliminate the blue wire , and white wire completely.
Why you might ask??
Because if you start patching different colored wires together, it's going to
complicate your troubleshooting later when you forget you did this.
It's not a clean install and will drive you nuts if you forget later down the road.

You run the brown wire to terminal 1 of the Alternator, the other end goes to the GEN light in your gauge cluster
You run the red wire from terminal 2 to the Charging post of the Alt. (6 inches)
You run the heavy gauge wire from the charging post to the Horn Relay.

I wanted more juice for my electric fans and 350watt Kicker amp I installed.
Now I just have to get some wire looms and shorten up my MSD plug wires.
NewEngineChrome2.jpg
DSC017841024x768.jpg

joe_padavano

I'll disagree for a couple of reasons. First, simply jumpering across the terminals in the voltage regulator connector prevents you from needing to cut up an original harness. You can even by a plug that does this for you. It also is very easy to see what you've done. And finally, if you can't remember this wiring mod, how do you keep track of what you've done inside the engine?

Aceshigh

For me, I just like to keep it clean.
My car isn't an all original 442 , it's a clone.
So I don't foresee a future at Barrett Jackson or Mecum with false claims of all original low mileage

Each owner will have a different goal with their car. So there's no wrong, or right way.

But in all sincerity, the point I was trying to make is, if you do it, do it NICE.
How many used classic muscle cars are out there with botch jobs under the hood that the
next owner has to unravel and troubleshoot because someone was too lazy to do a clean install ??? Alot.
When it comes to wiring, IMO......it should be one single colored wire (or striped) per end to end circuit run.

I just dealt with this in my 78 Camaro's aftermarket harness install by my cousins husband who
was a complete retard and took 3 different colored wires crimped together on one circuit.
Do you have any idea how annoying it is to NOT being able to trace anything without ripping
all the sheathing off to figure that out for each circuit ??

Also, I'm not a purist.....so that may be a reason we disagree. I prefer modernized protouring classics