Moderator - The Electrical Bay and Rocky Mountain Bolters
There are more than a few different ways to mount the alternators. I was trying to figure out another way to mount the alternator on my 68 327 with no bolt holes in the heads. I googled it with not much success. Mine is mounted on the drivers side.
Last edited by Rusty Rod; Thu Sep 24 2020 04:18 AM.
Roy, If I remember correctly, it would have been on the passenger side of the engine. There was two brackets one spaced the lower mounting hole on the alt from the cyl. head with a long bolt (maybe 6 inches). The other bolted onto the water pump and the thermostat housing, this was the adjustment bracket for the little mount on the top side of the alternator.
I have a 1972 C-10 with a 350 engine stashed away that is all original. I seem to remember the alternator being on the driver's side, with a bracket bolted to a raised boss on the rams' horn exhaust manifold, the same place where earlier models had a generator. If I want to mount an alternator on the passenger's side, I usually fabricate a mount from 1/4" thick 2" angle iron and 1/4" black pipe that straddles the front exhaust port and attaches with the two bolts for the exhaust manifold. Jerry
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For the 350 motor in 1970, alternators were on both sides depending on if a smog pump was required. That depended on size of truck, which 350, which transmission, model of truck, California or not. If no smog pump (A.I.R.), alternator was on the passenger side using bracket shown. If it had a pump, alternator was on drivers side. The confusion is due to folks taking off the pump themselves and moving alternator to pass side. Adding to the confusion is owners swapping other year 350's into a 1970 truck. It will look more normal, more Chevy, cleaner, if you mount it on the pass side with the bracket shown.
Can't say what MVD inspection will say about what your truck should or should not have. If their books say smog pump, and it's missing, you could fail emissions test. Some states are getting more fair about it. More realistic. They have done studies that show, for instance/for example that the amount of 1970's still on the road contribute less than .0001% to pollution, so why get jiggy with inspections of them. We don't inspect 1966 and older here.
Watch out for careful drivers!!! I'm away on an ego trip. Will be back on Feb 30. I'm not an Auto Mechanic, but I play one on TV. I charge $0.02 for every opinion and I take Paypal. Plan B is always better than plan A, by definition. You can't teach a new dog old tricks.
Thanks, that helps. The drivers side rams horn manifold has broken bolts in it so I will assume it's alternator went there. There was no smog pump on this engine, and no air conditioning though it does have power steering. The wiring also seems to indicate it was on the drivers side though I can add to it and move it if I need too.
I thought all the V-8 trucks up to 72 had the alternator on the drivers side. Does the engine have the short water pump then I may have the brackets and manifold to mount it back on the drivers side? If it has the long water pump and accessory holes drilled in the passenger side head then bracket pictured above is correct for the engine. PM me if you need the brackets.
It does indeed have the short water pump, and the pump does not have the holes to use it. But I have a friend close by who says he has a bracket he will not be using and has offered it to me for free. So seems my problem is answered.
I do appreciate all who spoke up. You've all been helpful.