Big Block exhaust manifold help ....

[John Brown]

Casey, you ever see the pics of all the Oldsmobile experimental engine stuff? It's awsome! Got a buddy from Battle Creek that calls Olds, "Guinea". He says Oldsmobile was GM's guinea pig. But yaa...... those sound like mystery motor parts. The heads should be smooth on the ends and have cast, bolt in, pushrod guides. Just in case you see some layin' at a swap meet.