The 57 860 I picked up 2 yrs ago started missing on #2 cylinder. Time to freshen up the engine. Dropped the head at the local machine shop. they called me last week and told me its got 3 cracks and suggested we find a replacement.
The head is marked EAF and 6090F. it has a fairly small heart shaped combustion chamber. I'm seeing some heads marked 310100 listed as 172 heads but the combustion chamber looks much larger. I'm concerned the larger chamber would lower the compression ratio and it may not preform as it did. This thing is a monster when its running right.
So whats the deal with 172 cylinder heads?
The head is marked EAF and 6090F. it has a fairly small heart shaped combustion chamber. I'm seeing some heads marked 310100 listed as 172 heads but the combustion chamber looks much larger. I'm concerned the larger chamber would lower the compression ratio and it may not preform as it did. This thing is a monster when its running right.
So whats the deal with 172 cylinder heads?