Thread: 267 to 305 parts swap & Rebuild

Tweet

Hey John, welcome aboard. Pull up a chair and grab some crackers out of the barrel over there. Somebody get John a cold soda.

We'll start things by determining what variety the 305 heads are. Chevy puts the casting number where the valve springs go on the head. Use any of the several sites on the web to find information on them. I used to use Mortec all the time, but can't get it to come up for me lately. Here's another.....
http://www.73-87.com/chevy_ids/sbheads.htm

This site uses only the last three digits of the casting number....
http://www.auto-ware.com/techref/castnum.htm

Here's another.....scroll halfway down for head numbers.....
http://www.montecarloss.com/SSThunder/SBCinfo.html

If you can't find any useful information from these sites, go to google and enter the casting number and Chevy like this...
1234567 Chevy