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2004 crack head

1K views 11 replies 7 participants last post by  Quadified ATV 
#1 · (Edited)
2004 cracked head

I have a 2004 450r with a ported and polished head. It has a crack from the plug hole to the exhaust valve seat. Has anybody run their quads that way? I just put a +3 stroker and +3 bbk in it and don't want to cause too many problems before it blows to pieces.
 
#11 ·
If its a hair line crack its awfully common. Mine has been that way since i got it and ive been running it for 3 years now. I cant imagine it causing any problems unless you go to really high comp and a big bore. even then, i thinks its unlikely to cause a failure. I think if honda had seen issues with it they (hopefully) would have increased the distance from seat to plug to stop it from happening.
 
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