hey how are ya's? im a new member however i have often visited the site and read your posts but wanna be a part of it now. My name Paul im 19 and im restoring my 69 Mach1 with a 351w and a 4 speed . now for the question i feel dumb asking this but im rebuilding my engine and i cont remeber what head goes on witch side othe the motor even my "mitchell" engine book wont tell me if you's could help that would be great. if yous need details like casting marks let me know however the only difference at all is a casting on one head with the numerical 6 and a 7 on the other
Thanks Paul

 

Welcome Paul to TMS! I am sure someone will be along shortly to assist you in the engine area, I am not 100% on this question you have posed here.

 

I am 99% sure they can go on either side. Does not matter

 

The heads will go on either side. Welcome to the wonderful world of working on old cars and scratching your head. Ask as many questions as you like.

 

thanks guys i was pretty sure of that after looking at them for hours to find even the smallest diff. but i didnt wanna bolt em all up and blow my engine when i fire it up
Thanks again
Paul