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Cracked heads...


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Well, Ive fully pimped out my cooling system including a headgasket job to find out that I have cracked heads... pretty nasty cracks inbetween the intake and exhaust valves...

 

So, what should I do? I hear brand new loaded heads are about 250$? per side... Should I cough up the 500$ plus whatever it costs to get the delta cams or just run this motor until it dies?

 

I guess the question is.. would it be worth it to get some virgin heads with some new cams?

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I would seriously doubt that those cracks reach into the water jacket. Generally (speaking non-soob-specific), those cracks bridge the intake and exhaust ports and/or cause issues with the valve seat inserts. Without bandsawing the head apart, I would guess that the nearest that the water jacket gets to the valve seat bridge area is about 1/2 inch... that would be a very deep crack, and the car would show other problems first.

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Yes I would suspect cracks somewhere else. Not between the valves like you noticed but rather deep in the exhuast port where they actually can crack into a water jacket. Cracks can be hard to see with the eye. I have heads pressure tested by a machine shop to see if they are realy cracked or not.

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BTW, you might want to consider getting rebuilt heads. CCR is an option, as is at least one place in the Seattle/Tacoma area and at least one in Portland, Oregon. The semi-quote that I heard a year ago for turbo heads from a local rebuilder was around US$230-250 a pair. (Don't know about SPFI, but should be nearly the same price.) By the time you pay to pressure-test, surface the head, and do a valve-job, you are probably looking at more than that cost.

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  • 5 years later...

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