what do you mean when you say "rebuild"?
if you mean complete rebuild, replace all bearings then pricey.
if you mean pull a few major bits and replace then not as painful.
I was quoted 10 hours for the engine block itself. that was me turning up with a stripped block and a box of new bits. blueprinting all tolerances and fitting crank, rods, pistons, water/oil pump (got no time to get my beast up and running!)
add another 5-10 if they are going to strip it out the car for you and do a proper job.
what are you planning to run on it turbo wise? your end goal will determine what direction is best.
Cams aren't really much of an upgrade unless you are getting into GT3076/GT35 territory as they can improve top end lift and help with surging issues (small engine can't cope with the volume of boost a GT35 at 25psi produces, get into anti surge housing and associated stuff) all they are really doing is pushing your curve up and to the right.
I wanted the opposite and the stock items are regarded as a pretty good compromise for lift and duration on this engine.
I swapped the crank for a 92.8mm throw to take it up to 2008cc on a 83mm rebore.
otherwise it has never been broken due to abuse through boost
unless you wan't bigger capacity the stock pistons are better than some aftermarket ones.
rods you can get cheap, I got scat rods for £2-300. I am getting some more next month if you want a set.
set of new bearings, (I did rods, mains and Im shaft all new)
oil and water pumps
studs if you feel like it
all fairly straight forward
the head needs a new set of valves/springs if you are running high boost or high revs.
Supertech make inconel exhaust valves an Ti springs and retainers, better option than Ferrea oversized in my opinion unless you are going massive turbo.
I reckon I have spent less than a grand on parts for a fully built 2.0l bottom end and uprated head.
I just don;t have time to put it all together and still haven't clearanced the block to put the rods/pistons in!!
If you can do without the car or have a spare block then stripping it yourself will always save you a shed load of cash.
yer, but arent the standard valves sodium filled? Doesnt this make them a little better than aftermarket parts for cooling reasons?
What sort of cost is involved in a set of inconel valves?
All this money makes me think i'd defo be going down the V8 route for 300hp