My son's 81 Mirada was an original slant six car, but the previous owner somewhere along the line replaced the factory engine with a mid-sixties 170 slant six. The casting number, 2463230-2 seems to indicate post '64 production. The stamping, EW170R 2869 0075 is a little more obscure. The W might indicate a warranty block, and the E might indicate 1967 production year, but that's not my question. This engine runs very well, with an initial timing of 24 degrees BTDC and total mechanical...
A question for the slant six gurus
