327 help

I have a silly question. I've always built dirt car engines, and never needed an alternator. We built two dirt show cars where I work. They use them on displays and parades. One car has a 327 with the double hump 462 heads(no holes). The other is a 327 with 76cc head(large plug with 126 casting numbers) with holes on the front of the heads. I need to put alternators on these cars. How would I go about getting the brackets and other materials to get them rigged up with alternators?