1969/1970 L78 nova questions????

[todd micheal]

New member, long time reader, I have bought a 1969 l78 nova built on 02D.I have found broad cast sheet, not 100% but can make out most of codes. I am in need of a block and not sure about the time span on date codes A friend has a 290# block stamped with the correct sufix for my car quit sure it is a CE block ,Block is a 1971 block 4 bolt main.I know a 854 would be correct But orginal is long gone.CE is the next best thing. But when it comes to heads and other parts are janurary 1970 parts too soon? Ex heads, exhaust, dis.and water pump. I am tring to restore to keep and be as correct as possible. This is my second car I am the owner of a forest green duece 4 speed car #117. Any help would be great Will try to respond as soon as possible. Thanks for any and all comments. Todd