Ok, some clues;
the one on the left is off a 2.5na.
I hadn't really noticed , but Lozza did; look at the gaps between the valve ports; the head on the left shows quite a considerable gap and the gap is dished out ( if that makes sense) , the right one is completely different.
Look at the thermo housing casting, notice any differences??
Why foobared? The left one is
**** and the right one has been on a block which seemingly suffered ring failure ( beyond what a Phal will do
) and the pitting around the water ways doesn't leave alot of sealing face.
But what is the one on the right?
Bert the Bodger should know.............
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