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  #1  
Old 07-24-2016, 10:54 AM
volvo-dennis volvo-dennis is offline
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Default Cylinderhead difference?

Hi everybody.

I am about to "refurb" a cylinderhead, for another engine I am building for my 740 GLE.
The cylinderhead is a bit different from what I have seen before. The combustion chamber is normally flat, with cracks between the valves

But this one is a bit concave. Do any of you know why it is concave?



The cylinderhead is from a VW LT Van.

/Dennis
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  #2  
Old 07-25-2016, 05:32 AM
anders anders is offline
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The only ones I have seen like that are from AMC cylinder heads, but it may also just be a newer design, the newest VW head I have seen is from 1986.
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  #3  
Old 07-25-2016, 08:59 AM
ngoma ngoma is offline
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Maybe an effort to avoid the ubiquitous cracking between the valves?

However, your photo shows what looks like a crack starting at the edge of one of the valve openings.
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  #4  
Old 07-25-2016, 01:05 PM
volvo-dennis volvo-dennis is offline
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The head is a original VW, from about 1989-1990 (if i remenber correctly). From a N/A VW. It looks like a crack starting, on the photo, but it aint. The head has been cleaned, and now the "crack" is gone.
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