> Bzzt: The 3B is a 2.3L (I5) 20 Valve Turbo The 7A is a 2.3L (I5) 20 Valve Normal Aspiration (no turbo) > No reason for the Bzzz. And in the interest of maintaining accuracy, the 3B 20V turbo is a 2.2 liter engine, 86.4 mm stroke and 81 mm bore. - Dave