If you just do the head swap i'm pretty sure you have to do a piston swap as well as the valve flycuts will be different. I think it would actually require a custom piston.
Depends whether you want a non-interferance engine - and whether or not the compression ratio is any good after changing the head over (chances are it won't be).
You can go another route - modify the 5S crank and use 3S conrods and pistons. Then you have the bother of sorting out another 2mm of piston height, there are ways around this and you could still end up with good compression and non-interference - but it requires either custom rods (not cheap) or machining some stuff (less desirable).
Fri, 18 June 2004 02:54
(chances are it won't be).
