[Richard Coutts-Smith]

David,
I have just put in a 235 in my C60s. Went in quite easily, spent a bit of time making a new hand throttle bracket to mount around the waterpump as the original does not fit, and a lot more time getting the original bellhousing to line up properly on the block. I have heard of problems with the length oh the shaft on the waterpump (too long) but mine was fine.
My only problem was not knowing about "plastigauges" when doing the big ends. After my first test drive I could here a knock under load, turns out I have 4thou clearance on one bigend. Talk about learning the hard way...
Sure if you do a search for 235's in this forum you will find a few comments about them.
Goodluck
Rich