i got a 1.6 16v v reg mk2 first phase clio, an i know most of u wil say get a 2.0l conversion, but i have to keep it 1.6 for certain reasons. i jus want info on whats the best cylinder head to fit tho, to make it perform better? can i fit the 2.0l 172 cylinder head on, or will it change anything by doing so?