I blew the head gasket on my 06 450 a few weeks ago out in the desert..
I limped it back to camp unsure what was wrong, and did some fairly extensive damage.
Pulled it all apart. List of damage:
-Piston Chunked off a little
-Gouged cylinder wall, Cylinder Junk
-Exhaust cam is BLUE from massive heat.
-Head is warped, but not gouging anywhere, everything looks clean and nice
Got the bottom end redone, new rod, etc... Got the new cylinder, piston, etc...
NOW... The head.. These heads are FREAKING EXPENSIVE, even used..
This is just a dirtbike i use for the desert, and occasional putting around at the MX track, not my race bike.
I dont want any extra HP, or anything, and i want to run pump gas, etc.... I want this for reliability first and foremost, as we occasionally do 75+ mile rides!
Had one mechanic tell me he could shave it, and just use a a thicker gasket material to make up the difference. Sounds pretty sketchy to me.. I have already spent a good chunk of $ on all new OEM parts, and i don't want to cut corners on the rebuild.
Same Mechanic told me he could possibly just shave the head, and bump up compression, but these head are very sensitive to that, and not much can be shaved, due to already tight tolerances.
Have searched high and low for a used head and coming up with nothing affordable..
Any ideas, options, or opinions guys??
Thanks a lot