I'll upload pics in a bit, but wanted to post for interest. This head came off my 05 AW car and was rebuilt during PO's ownership here locally in Longmont, CO. The car suffered sheared vanos hub bolts resulting in bent intake valves. As such, he had the cylinder head rebuilt with 3 angle valve job, resurfaced, new ferrea valves, valve seals, re-used the rest of the oem valvetrain.
Upon leak down testing, Cyl1 exhaust ended up leaking. Looking into it further, it appears that one/both EX valves on Cyl1 is not sealing properly. Not sure if it's valve lap issue or something else. Furthermore, one of the upper spring plates on Cyl1 was malled by the cam finger rubbing after shim popped out of place.
To avoid downtime, I decided to have a spare head sent off to Lang Racing and had it freshly rebuilt.
Will take pics tomorrow of various details.
Asking $800 plus shipping.
Pics:
Upon leak down testing, Cyl1 exhaust ended up leaking. Looking into it further, it appears that one/both EX valves on Cyl1 is not sealing properly. Not sure if it's valve lap issue or something else. Furthermore, one of the upper spring plates on Cyl1 was malled by the cam finger rubbing after shim popped out of place.
To avoid downtime, I decided to have a spare head sent off to Lang Racing and had it freshly rebuilt.
Will take pics tomorrow of various details.
Asking $800 plus shipping.
Pics:
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