I need some head advice for my 496 build. This engine is going into a superstock mud truck and here are the rules i have to follow:
engine must pull 15" of vac at 800 rpm
stock cast heads only
only 3 engine bolt ons ( carb intake and headers)
My plan so far is to build a flat top 496 but i have no gm heads for this engine. ( i do have some 781 cores but they are in rough shape) Since i have to buy heads i was wondering what casting no's, valve size, and combustion chamber volume i should be looking for. I would like to see close to 6000 rpm out of this engine but torque is the priority. Just curious to see what other people here have used on 496's in the past.