Machine shop prices

[tak-]

So im rebuilding my ka24de.

This is all pretty new to me, but I think I'll make it through. I've gathered most of my info via searching, but I have a few questions.

First off, I have the engine completely disassembled. When I take it to the machine shop, do they want the bottom end and the top end pre-assembled? Can I just bring them my pistons/rods/bearings/etc and let them fuck with it?

How much do you think it would cost approx to get my block bored over .5mm, tested for cracks, and resurfaced? Anything else i am missing?

Also wanna know how much to expect to pay for the shop to install new springs/retainers/valves. Check clearences, check for cracks/warped.

What about the valves, I have heard of people using undersized valves, this confuses me? Do i want oversized valves, and let the machine shop do the adjustments.

I plan on forced induction in some time, but not just yet, I can live with a slow car. I want to build this to be reliable also. Do you think .5mm is too much? I dont want to jeperdize reliablity for speed.


thanks a ton