I am not too sure what kind of swap you are doing, so here are my best guesses. Big block and small block distributors are interchangeable, so that is not a big factor. If you are interested in the electronic distributors made by GM (HEI) , you will need to get one from 1975 to 1984. The later ones require a computer connection, which is not a good idea. The computer HEI will not have a vacuum advance can, so it is easy to identify.
thanks for the reply, just what I needed. I am putting in an hei. The junkyard has some chevy's with 305's in them. Would this work. Just trying to get bye for a year until new engine is built. I'd like to just bye a new cap and rotor. Thanks for the help again!!!
Any junkyard HEI with a vacuum advance canister will work OK
I believe some 1982's and maybe even 1981's will not work because the ones without the V.A. are computer controled like JWagner already said.
remember to regap your spark plugs after you install the HEI. They use a gap like .45 or .50 whereas points use a smaller gap like .35. Probably a good idea to totally change plugs to the type that are recommended for the year of car you get the HEI from. Also, be reminded that a HEI distributor needs a full 12 volts to it, the wire that now goes to your points distibutor is a "resistor wire" and drops voltage to 9 volts to your coil so you dont burn out the points or coil. Search HEI in this forum and in the Engine section for more info on the conversion.
A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more!