Help with pistons selection and CR
#1
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I am going to order some new pistons for my motor. I have a Eagle crank, Copmustar rods, and need pistons for a 408 build. The motor will have Dart 225 Pro 1 heads. The pistons that I am looking at are Wiseco with a -3.2 dish. I will be using the stock 6 liter MLS gasket if I can on a .030 over block. If my calculations are right I will have a CR in the 11.78 range. I have two questions, can I use a MLS gasket on a 4.030 bore and if so then will that CR be too high for pump gas and maybe a little N2O? No more than a 150-175 shot at most. Or should I look into another set of pistons with more dish?
#3
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I checked today and using the Wiseco -8 inch pistons with the 6 liter MLS gasket at .064 I would have 11.3.1 Is that the correct thickness of the gasket? What other factor do I need to include in my equation?
Last edited by skyhighsami; 02-18-2008 at 08:40 PM.