I watched a NHRA Top Fuel motor rebuild, I think they have like 75 minutes to pull apart and rebuild a motor and on the track again. I saw a guy put in CYLINDER SLEEVES in the block. So I'm over at my boat shop guru and he showed me a set of heads that someone had ported to much and put holes right through the thing. SO I thougt why not use the same tech. as the Cylinder sleeves on a block. Just put sleeves in the heads to make them bigger and not have a hole pucnhed threw problem ever again. Or maybe just save a set of heads for more than half the cost of buying new ones.
Think It would work?? Just a thought you guys so if it's a stupid question I'm sorry ahead of time thanks for your thoughts.