It looks like the valve stem oil seals have given up on my pinto head. They were fitted a few thousand miles ago along with a HT1 cam.
From what I have found out the Kent valve stem oil seals aren't the best when using double value springs. Going to get a set ordered up from Victor Reinz (or else where if any recommendations?).
While the head is off I would like to try and increase the compression to make a bit more use of the HT1 cam
The bottom end is standard apart from ARP rod bolts and the pistons look like they go level with the top of the block. (I'll see if I can get a gauge to be a bit more accurate)
The head has bigger inlet and outlet valves, unleaded conversion, ported and bronze valve guides. I have measured the head and its ~94.35 mm which is only 0.15 mm away from what I believe to be the standard thickness.
I am hoping this is enough information to answer my questions -I believe to get the most from the HT1 cam the pistons require cutouts in them to allow for the compression to be lifted further - unfortunately I don't have the budget for doing this just now.
- what can I safely get skimmed from the head? 1 mm?
- will a felpro head gasket be ok to use? (roughly 1.2 mm uncrushed according to Burton) or are there better ones?
- can anyone roughly work out the compression ratio? (before and after head skim)
Please keep any explanations simple as my knowledge on engines is poor (but getting better) !!
Thank you
David
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