Originally Posted by
It's Czech Mate
I was offered a silver top for cheaper lol. You're missing the point, if you are gonna have to change the rods, pistons and do valve train mods as well as Port the shit out of the head then you might as well start with the cheaper engine. If you can get an st170 for peanuts then great.
Problem with the silver top is cam choice, running wild cams will need oversize bucket bores and just the machine work is £350+
ST170 wild cams don't need that machine work as cam have been developed well over the years and don't need bucket machine work. And the there are so many cams on the market for these engines.
I've discussed all this with Andrew@ALD as he will be building me my engine for my Fiesta.