Originally Posted by turmic
Oh Chris, I know. I was estimated at $2,400 for ported/reshaped heads with springs/retainers/inconel exhaust valves and was told it would be another $285 if it needs new guides.
Just so you know what your options are:
MAPerformance Stage 3 Cylinder Head Preparation (Subaru) - Modern Automotive Performance
That service includes ALL machine work, cleaning, labor, and actual assembly/lashing of the heads. All you do is supply the guts, send it all to them, and they do the rest.
Prices for the guts:
Seals: I got mine with my oem gasket kit, but don't pay more than $25. OEM's are even cheaper
Keepers/Collets: reuse stock if you can... If not they're each 5c from the dealer and you need 32 of them.
Guides: Don't pay more than $100. Supertech runs about $90 and they're a good brand.
Valves: Definitely inconel on the exhaust valves, but they cost ya a bit more. $375-400 for supertech valves using inconel exhaust, nitride intake.
Buckets: Expect to have to buy some buckets.... They run $15-18 a piece and you could need none, you could need all 16; it just depends on the cam/valves.
Springs and Retainers: BC seems good, and the price is right... Single spring is more than enough for 99% of builds that keep the revs below 8k.
Cams: I would go with something in the 264 range with medium lift for your turbo. Kelford, BC, Crower, Cossies... It's really just what you want to spend.
I'm getting my chambers coated to hold the head in a bit better... Who knows if it makes a huge difference or not.
Get a shop to just do the machine work on the heads and assemble them yourself.... Saves a good amount of labor and heads are actually pretty easy once you know the valves are going to seat properly (machine shop will do that as part of the 3 or 5-angle valve job)
If you do the heads yourself buy one of these!!!!!
because it can do this:
For reference, I have a local shop doing the port work on my heads for $900. I'm assembling, setting lash, etc on my own. I'm also send them out to get the comb. chambers and valve faces coated and I'm spending $2,200 with cams.