170K on the block..rebuild???

[fongo]

Hi everyone.
Since I blew one of my heads , I'm thinking of getting a pair of aftermarkets... However, since I have 170K miles on the stock block, I have the dilemma of installing the new heads on this block, OR should I consider a rebuild? The engine ran fine, no serious oil leaks (some oil pressure drop, but I think it's the oil sending unit), exhaust is clean, no significant loss of power up to now. I drive the car clean (no redlining, don't 'beat up' on it etc.)
Any suggestions??

p.s. I have read before that many stock engines can hold up to 250 miles or more.

thanks!

[1965GTO]

You need to measure the bores and see if they need bored.

[goodyear1984]

well the oil pressure loss is the most likely bearings,well they do run forever.it all depends on what u wanna do.u can do it ten ways.i know how to do this work so i might do it differently the some people.heres 2 ways u can do it because it sounds like you dont beat on it.
if you have the money and ur just looking for close to stock,i would rebuild,pistons kb $450,rods scat i beam only like $220,crank grind,timing chain,oilpump
or you could just do rings and bearings if you dont have the money,but who knows how long that would last.
or you can buy a used motor