Originally Posted by SiAm06

was the 84mm ones that he has for a b18 or b20, becuase that spread sheet was from the cp website itself and for b18c the biggest bore is 83 and not at the compression i want...........how many litres is that anyway? and does it matter the application which the spread sheet assigns, or is all b-series the same except ls or and b20 or something like that?