im having a problem with getting broken bolts out of my heads on my 455. if i cant get them out this weekend i think i might pull the heads assuming i can do it without pulling the engine. if i do then i might put the heads from my 67 400 on the engine instead, theyll give higher compression and other benefits. i ve never had any machine work done but i assume i should have the 400 heads checked out before i put em on. if i have them hot tanked and magna fluxed what do i need to take off the heads before i bring em to the shop? and how much am i looking as spending?
