theold52

Hi. Any of you guys done a 12 volt conversion on a Rocket 303 motor?
1952 Super 88. Curious what alternator you used. Thanks. Robert

Rocketowner

A site named oldengine.com has a very well written article on 6v to 12v conversion .He used the 10SI GM alternator (which is a three wire and a 1 wire regular and tells in detail where each wire goes. Very interesting article that tell the advantages of what necessary items needs changing and the ones that are a matter of choice. Good luck, Larry

joe_padavano

Wiring is the easiest part. I swapped a 105 amp CS130 for the stock generator and regulator in my 62 F-85 wagon with no problems whatsoever. The issue is bracketry. In my case, the 1963 215s came with alternators, so I used that bracket instead of the generator brackets and it was a bolt-on. I did swap the pulley from the generator onto the CS130 to both get rid of the serpentine pulley and to have the correct v-belt width.

Your problem is that the 303 never came with an alternator, so you will need to either modify your generator brackets or find aftermarket ones.

Ozzie

If you get a factory bracket from a 1963 or 1964 full sized Olds it will take the alternator and should be reasonably easy to modify for the 303. I used one on my 324. If you're also doing air conditioning, get one from an A/C car and it will accept the A6 compressor.

theold52

Thanks for the input. I will go with an alternator as It will have a built in regulator. Wiring looks pretty easy.

redoldsman

I put a one wire alternator on my 54. I know there are folks on here that don't like the one wire but I have had no problems with it and it sure makes an easy installation. Since I have AC, an electric fan and an electric fuel pump I used a 130 amp alternator. The mounting bracket it pretty simple and you can make a new one out of some flat stock. If you can find one for a 63-64 as Ozzie mentioned, that would be the best way to go. Make a post in the parts wanted section.