Hairline Cracks in head - is it Fubar?

Cosmic73

Member
Just removed my head and found some hairline cracks running between plug and exhaust valves in Cylinders 2, 3 and 4.
Are these show stoppers?
My plan is to grind them away, rebuild and run engine at max 300bhp max
If it is a show stopper does anyone have one for sale!




 

The Doc

Moderators
Staff member
It will be fine, the casting is so thick in that area its not a worry at that power...technically on most engines thats scrap but having seen an engine with 13 cracks in the head i would say thats the least of your worries
 

Cosmic73

Member
I've heard most heads have hairline cracks in anyway.
My gut feeling is that these are stress relief cracks and the engine would have shat itself A long time ago if they were still opening up.
Milage states 110k by the way.
 
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