so after the head and piston are out does the sleeve have to be pulled out with a special puller or could i just pull with a slide hammer or something. also could it be possible that if this isn't the original engine the tach doesn't read right? or are all of the tachometers the same? i was out working on getting the head off today and the block has a rebuild tag on it that says
STD. STD.
NTC 350

is there some kind of casting difference between the small and big cam 350?

Last edited by 47chevy6400; 09/05/2008 3:57 AM. Reason: more info