Went thru all my "saved" stuff, looked in "Tech Archives", cant locate the thread on how to wire the GM starter solenoid to use Ford Solenoids for "hot starts" problem. Think I remember it but need refreshing, have not done one for about 10 years. Copper strap or heavy wire from positive post to S terminal on GM solenoid and then Pos cable to cold side of Ford solenoid. Attach "start" wire to S term on Ford solenoid. I think Ron Francis calls it their "Hot Start" sys or something like that. Anyone that has the previously posted thread, would help if reposted. Thanx again Dave
Here's one version...graphics aren't great, but as long as you understand what each GM wire does, you can figure it out. Your IGN wire (if you have one) goes to the I terminal on the Ford solenoid (some Ford solenoids have only three terminals....an experienced counter guy will just ask "Three post or Four post?" when you ask for one). http://www.oldengine.org/unfaq/solenoid.htm
Mark Hamilton at www.madelectrical.com has packaged a remote solenoid if you want a complete kit. The above drawing looks good and I am sure is a lot cheaper. Check Mads web site for some good advise and parts. The FOGGER
I always use one with all my projects. Mount it on the inner fender just like a Ford. It makes valve setting and bumping the motor over a little easier. Slidin" my fat old ass under the car more than I have to gets old fast....I also wire the starter with a 4 wire trailer connector mounted lower on the inner fender closer to the firewall. Makes starter changes easier too. Tried to load the pics but it said they were too big, I'll try to shrink them and post them later.
I use this exact same setup on my '64 GTO. I made a 1/6" thick copper buss bar (strap) to connect the starter positive post to the 'S' terminal on the GM soleniod. The batter cable (2/0 welding cable) to the starter is only hot when I hit the key to crank it. The '64 GTO uses a junction block with a horn relay built-in, so I made a copper buss bar to connect the positive lug on the junction block to the hot side of the Ford realy (soleniod). Both mount to a stainless steel bracket so I could keep the junction block in the stock location and pair it up with the relay.
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