Will_982

Thanks for the replies, think I will be keeping it dished pistons. The l28 I got is in amazingly good shape inside but the entire fuel injection system was torn up by field critters from sitting so long, thus reason for keeping it carbureted. I have already ordered seals, head bolts and all the little stuff that adds up up quick but saw roughly 300$ for flat top pistons and didn't seem to bad. Did the engine builder program and saw roughly 9.6 compression with flat tops and was concerned if that would open up a whole new set of problems. The z I have right now was born an auto so this is where it all started. I just did some side work to acquire the trans and engine came with it for nothing, figured would like to do it right first time.

I am starting on an engine rebuild to go into my 72 240 and would like to have some advice. I got my hands on a 75 280 block with a n42 head, I have it torn down to start on the rebuild then by spring hopefully have it swapped into my 240. I would like to get as much power out of it as I can but at the same time not just burn money. My location yields me little to no help from local machine shops on advice on getting the most out of an engine this old. From research and what parts I have on hand I have decided to keep the n42 head on the l28 rather than swapping with my e88 but I will be keeping it a carbureted engine. (I am in process of switching it over to electric fuel pump.) My questions are, wether or not I should spend the money to go to a flat top piston once I get the engine tanked or are horse power gains just not worth the money? Anything else that might gain me some more power but would like to keep parts below 1000$?