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It is easy to put an older-style valve cover on a new-style engine because the rocker assembly bolts are in the same place. This is invaluable in determining what engine parts you need for your rebuild. With the casting information, you should be able to decipher everything General Motors recorded about your engine. Here are the head casting numbers that I can verify, so this is a short list: If you have heard that the new-style 235 gets better compression numbers with an “848” head and that’s important to you, look for those as the last three numbers of that casting number. The head casting number is located outside the valve cover in plain sight on the driver’s side. In my research, I found very little information for heads manufactured between 19, but I found the three most popular. The head also has important casting numbers. This is one of those infamous high-compression 848s. The rest of the head’s information can be obtained by removing the cover. Without removing the valve cover, the head’s casting number is clearly stamped just before the carburetor. It is an accumulation of data that has been updated over the years, so you should have no problem finding your Stovebolt in the list. The first place to start when researching information on an engine is a list of GM casting numbers in the appendix. You can use the social sharing buttons to the left, or copy and paste the website link: ‎ SHARE THIS ARTICLE: Please feel free to share this post on Facebook Groups or Forums/Blogs you read. For a comprehensive guide on this entire subject you can visit this link: LEARN MORE ABOUT THIS BOOK HERE This Tech Tip is From the Full Book, CHEVROLET INLINE-6 ENGINE 1929-1962: HOW TO REBUILD.

I encourage you to hold out for those years and purchase the newer engines wherever possible however, there is more to an engine than its birth date. Again, the desirable years are 1954– 1962 with the 1958–1962 being the most desirable because of all the lessons learned by Chevrolet through the years. This will serve you well when ordering parts and perusing parts at swap meets. Whether you are looking to purchase a Stovebolt for your project or already have one, the most important first step is identifying everything you can about the engine.