how much power and heat can these little suckers take.

im running out of funds and i have to cut out some items in my purchase list

 

Cut em' out. I doubt you'll need anything other than stock.

 

yeah pretty much don't you only need to to valve stuff if you planning of reving the living toleto out of your motor?

 

Yeah they will be ok. Just go get a new valve job so they seat real nice. Thats what I have done and they hold up just fine. Honda doesn't really design bad things in there engines as far as the head or any part of the engine in fact. Keep the stock revs and your head should be fine.