I am going to replace my stock 1.9 valves with the larger valves of the 2.0 cylinder head size... The catalog says the valves for the 2.0 head are 42 mm and 37mm.....I already own a new set of 39mm intake valves for a 1.9 head.. Could I use the new intake 39mm valves as exhaust valves...that way I would only have to buy the 42mm valves for the conversion ??
That would mean that my exhaust valves would be 2mm larger than normal 2.0 exhausts...will this work ? or might the exhaust valves made differently material ? I know the exhausts run at much greater temperature... it's just that I already have the valves... How about the closeness of the edge of the valves...maybe too close together ?