I am in the process of acquiring a '69 RS SS396, 4-speed. The Trim Plate on the firewall indicates that the car was built in Norwood during the third week of September, 1968.
The 396 cu in., 350 HP, steel crank, two-bolt main cap, "-272", L34 engine is currently out of the car. The engine code and vehicle code were removed from the block when it was decked during a rebuild. The owner readily acknowledges that this engine is not the original one to the vehicle.
Jerry MacNeish's book, "The Definitive 1969 Camaro Fact Book" (page 135) states the following: Camaros manufactured between September and November of 1968 had "-440" block castings. This was due to a surplus of "-440" blocks manufactured between February and August of 1968. The casting of "-272" blocks in Towanda did not start until September of 1968.
Upon acquiring this vehicle, I'd like to install an L34 with the correct engine build code. So I'd like you to confirm here that this car MUST have originally had a "-440" block installed, i.e., it is NOT POSSIBLE that this vehicle originally came with a "-272". Assuming that is the case, I want to locate a "-440" block for installation in the vehicle. I would assume that I should search for a "-440" block with a engine casting date code in the June, July, August of 1968 timeframe? Or is it possible that any "-440" block from the February through August of 1968 timeframe could have made it into this vehicle when manufactured in Norwood during the third week of September of 1968?
Thanks, all, very much for your consideration here