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Re: At what RPM does your 350 SBC idle?
Quote:
Originally Posted by rich weyand
I don't have problems maintaining voltage at that RPM since I put in a 94-amp 12SI alternator in place of the 43-amp 10SI. 12SI and 10SI alternators are same size, same brackets, same wiring, just swap it in.
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Good advice. I've run 78 amp 12SI alternators (rebuilt by AC/Delco) in two vehicles over the years. One has been going strong since 2002. No dimming of the lights on either of the vehicles. Excellent info here: http://www.madelectrical.com/electri...elcoremy.shtml
Of course the dimming problem could also be caused by too much voltage drop in your wiring -- poor 12 volt and/or ground connections, or wire gauge too small.
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Mike
1969 C10 LWB -- owned for 36 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes.
1982 C10 SWB -- converted from 250-six to roller cam 350, Vortec heads -- sold
1981 C10 Silverado LWB, 305, TH350C -- sold, but wish I still had it!
1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming.
Retired as a factory automation products salesman.
Worked part-time over the years for an engine builder and a classic car repair shop.
Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!
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