Can you help with engine build?

[jojo-munson]

Originally Posted by weim55

The spark plug placement is slightly different so there could be interference with those manifolds. I'm not sure if the exhaust port placement is slightly higher possibly creating interference with the head pipes (?) maybe somebody can chime in here that have run stock exhaust manifolds. All of the swaps I've done had headers.

Steve weim55 Colorado

I did a vortec head swap on a 72 C20 350 and kept the stock style exhaust manifolds (both originals were cracked, so they're the Dorman replacements) and have no issues with clearance regarding spark plugs.

I ended up getting a new carb with electric choke so can't help there.