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| | | | Joined: Dec 2009 Posts: 8 New Guy | | New Guy Joined: Dec 2009 Posts: 8 | hey guys. tried looking thru past threads for my answers,but no luck. first when did 12 volt systems start? i looked on truck, no luck. the coil actually says 6/12volt on it!i put a 1958 chevy 235 in my first series 55 gmc.the chevy and gmc had the exact same 4-speed open drive line trans.2nd if its 6v,i have a 1940 starter from a 1 1/2 ton that bolts in, but will the gears match? 3rd, i found a hei distributer in a late 70s inline 6. will it fit the older moter to convert to 12? thanks for any help | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | 12V systems became standard on most vehicles in 1956.
I can't help on the coil question except to say if it was on a '58 engine it is probably a 12V coil.
A 6V starter will not mesh with a '58 12V flywheel.
The HEI distributor will not fit in a 235 but can be modified to fit. A search should locate the way it's done. | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | Chevrolet went to 12 volt in 1955, second series on trucks.
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