Wrong! 1.8 pistons are the same as the 2.0 pistons.The rods on the 1.8 are shorter causing a c/r drop on the 2.0 to 8.1 instead of 10.1JDOGG said:Most people dont like the idea of milling the head because it messes with the timing belt. to do it right you would need adjustable timing gears and a tighter timing belt tensioner. Us I4 guys got it easy tho. swap in 1.8L pistons and you've got yourself 11:1 comp. apparently its a pretty common mod in korea. danm those crazy Korean's with their crazy 4 bangers.