cylinders are the same cost right across the board 875.00 wether it be a 4,7,10mil
case trenching is about the same, cranks are within a few dollars, have to run big bore pipes with a 7 or 10 any way, gonna need a long ass swing arm, big carbs 39s should work, vf2's or 3's new intakes for bigger carbs, cool head stroker domes, straight cut gears, lock-up clutch, tz crank bearings, override tranny.
the list goes on and on.