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One of the fun things about restorations and buying Chevy engines, blocks and heads is the casting number search.
Back in the early 1980s, no reference material was available other than what was listed in a Chilton’s or Motor’s manual. We were one of the first to seek out horsepower codes, then casting numbers. Many have followed suit and have produced a number of different reference manuals. Here are our personal big-block head and block casting number lists. We feel it is extremely accurate and is as exact as we can make it. After all, we use both ourselves at every wrecking yard, swap meet and garage sale we visit. For sure, we do not leave home without them!
