Here is a parts list for a full rebuild on a 3.0 engine.
This could also be in the Engine Rebuilding Forum, however most people look to the Technical Forum first for advice ahead of time, and go to the Engine Rebuilding Forum "while they are in there"
Recent posts highlighted the lack of knowledge about the actual detailed costs of what it takes to rebuild a Porsche flat six. Here is the real deal, without labor.
(>$20K to have a professional do it all --> not surprising)
Major tasks:
Replace #2 Cylinder and #2 Cylinder Head <-- reason for the rebuild
CCR weld repaired the Crankshaft <-- big surprise
Re-plated Cylinders and new Pistons <-- disappointing added cost
New Camshafts <-- did this for the fun of it
New rocker shafts <-- another surprise
Rebuilt heads with new guides, valves and exhaust studs <-- Required
Reconditioned Rods and premium bolts and GT3 rod bearing <-- Insurance
Zero Timed cam drive system <-- failed tensioner & Insurance
Another way to look at it:
Zero timing the entire bottom end: ~$4,864
Top End: ~$5,213
New Cams: ~$1,086
Tools and stuff: ~$923
Some things you might not do. Some things will be a surprise. I chose to Zero-time the engine.