I still have a long way to go - once I get a handle on cam choice - I'd like to work on stall selection. I am really liking the cam discussions on this forum - and trying to get a solid understanding as to what goes into the right choice - other than 'I want it to sound like "rump rump rump" at idle'. if the cam suggested for the recent 355build discussion requires 15 degrees advance to get to pump gas SCR - I was think a cam with a later intake closing angle than 36 degrees would be a better recommendation (like closer to 50 degrees). Last edited by pat mccarthy 10-01-2010 at 04:29 PM. if there 2618 there going to move if 4032 you can fit them closer to the wall for what your doing botom line is how are you going to run a coat piston 001 less if you can not messure it for size real size? its coated. must of been the broom pusher grab the phone ? i have used there cast piston that had NO coating on them and they do or did make pistons for PBM and they are not coated as i have used a set in a 355. The main reason why on my build I am not using KB pistons is the design promotes carbon build up on the ring lands.Seems to be just a bad design.I spoke to Mahle some more to find you can run those pistons at 4.029 vs 4.030,one thousands tighter that limits or eliminates cold forge piston slap because of the coating.One tip they gave me was to NOT use anything like carb cleaner to clean the pistons before the install of them.That kind of cleaner lifts off the coating.Of course they are making claims the coating last for the long term where on another thread I had concerns posted.The piston/ring design on the Mahle hands down seal without any carbon build up.They also told me they don't build cast pistons or pistons without the coating.Yeah I think in this case I found the age old saying."You do get what you pay for".The Mahle of course costs more.
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