The 3970010 is a hard one to identify without front pad #'s. It was used in so many applications. It could be a 68-79 350, or a 68-69 327. www.mortec.com says also a 69 302, but I'm not sure on that. Those blocks were made with both 2 and 4 bolt mains and came is a number of hp ratings.
A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more!