C85 pistons in O-200

[go ez]

Has anyone installed C85 pistons into an O-200 to give a higher compression ratio.

Was it successful, any snags or problems?

Any advice  would be gratefully received.

Thanks

[Alan Laudani]

I refurbished my 0-200A last year and put 8.5:1 lycom pistons in.
They cost me $860. It was money well spent. My climb is now 1200 fpm plus and top speed improved about 15 knots. I looked at C85 pistons and it was told to me that the piston tops needed to be machined into a chamfer. I decided to let the piston experts do it. The folks at Lycom were easy to deal with. I did need to call them on the correct way to assemble the rings.

[go ez]

Did you have to do any machining of the rod   or does the std wrist pin fit
Thanks

[Alan Laudani]

I used the 0200 piston rods and cylinder pins stock.