1968 440 motor interference motor or not May 25, 2015 10:25:07 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by antcharger440 on May 25, 2015 10:25:07 GMT -5 could anyone tell me if a 1968 440 is an interference motor I think I spun a timming chain and I cant remember if it is an interference motor or not! thanks!