Obviously it does!!! Must be by pure luck that we have 2 cars here spanning nearly 900bhp combined!!

DUDE, the 2 litre will always be a better engine to go for out of the 1.8 and the 2 litre when doing a cheap conversion as there is more parts. The 1800 is restricted in making reliable performance by the rods and the pistons. If you was to go for a big power engine where the crank rods and pistons need replacing, then at this point capacity is irrelevant. The difference being that the Zetec based engines will need crank, rods and pistons to match the smooth power curve of a CVH, where as the CVH will only need rods and pistons.