Help with compression ratio
 

I posted this thread with the technical forum but am not getting any response. I hope that I can do better here. I have a set of P & C's with cast iron barrels and what looks like Mahle pistons. They are for a 2.0 L engine but I have no idea what the compression ratio would be or what engine they would go to. The marks on the piston head are Sp0,03 On the flycut 79.9 which I would assume is the piston size. Inside the piston 80S184 and a 51 over a 2 in a circle. Can anyone help.

Thanks in Advance. Rick
http://forums.pelicanparts.com/uploa...1272659256.jpg
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The number doesnt work for the ID but visually they are late 60s 2.0 T pistons @ 8.6 CR especially with the cast iron cylinders.
The 2.0L is 9.0 CR 80V65 is the inside number for the L pistons
Bruce

Many thanks, Bruce


Rick