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R1 head swap..
Yazza54 - 31/3/11 at 01:53 PM

Will an 98-01 r1 head fit a 02-03??

As far as I know they're the same motor but my 03 has fuel injection....


A1 - 31/3/11 at 02:53 PM

no they dont. Theyre very similar engines, but one of the things they changed was the heads. (along with the sump and pickup pipe) the inlets are a bit longer on the 4xv, and a slightly different angle.


Yazza54 - 31/3/11 at 03:07 PM

That wouldn't stop it from working though would it? Long as the throttle bodies fit. Along with the 5pw cams and cam cover for the trigger sensor.


A1 - 31/3/11 at 08:18 PM

no, they should work... the cylinder sizes are the same, as is the cooling etc.
Why not track down some more 5pw heads?

let us know how you get on!


adithorp - 31/3/11 at 08:24 PM

Why?


Yazza54 - 31/3/11 at 08:47 PM

I found a 01 head, ported and flowed with yam11 Kent cams and new head head gasket


Don't even know what I'm doing and will probs sell it on if I don't fit it to mine


[Edited on 31/3/11 by Yazza54]


smart51 - 1/4/11 at 11:54 AM

If you want a 99 head in lovely condition, I've got one that is surplus to requirements