justto confirm, (as many of you know)
the willy has a lower rev limit because it gains its additional 200ccs buy using a longer throw crank, therefore allowing the pistons to travel further in the smae bore, to up the rev limit significantly would be risky, and not somthing i would do without spending to massive amount of cash needed for forged pistons etc, another expensive alternative would be to increase thew bore on the 16v engine, to 2 ltrs or more (space permitting) then the sort stroke 2ltr could be made to rev to 8k realisiticly,
see my post on the engine mods section,
to put it in pespective, when the spyder cup spec engines came up for sale i contacted the tuning company who prepeared them and asked about dropping one in to a clio, he said he had done a similar conversion using an clio cup spec engine, this was the same 1800 F7P lump all 16vs come with but it had all the required mod to rev to high (fully lightened and balanced etc) and with one of thier ECUs that had an 8.5k rev limit it did 150+mph and 0-60 in 6 seconds whilst still achieving 36 mpg on a run, obviously this was with significant head work but it goes to show what can be achieved, and that 2ltr bottom ends dont have to be the first step to big power,
having said that if i could find one for sensible money i would snap it up straight away!