C2 vts inlet/saxo vts inlet size?

[Christian555]

Hi, i've currently got AT Power throttle bodies on my VTS but i'm thinking of switching to a C2 VTS cylinder head this winter for more power.
I know i'll need to buy new cams and whatnot but will the throttle bodies fit direct to the C2 inlet or are the sizes different?

[axsaxoman]

Hi,
no cams from vts will fit +be fine in c2 head --just make sure you drill c2 head to have all studs that vts head had to mount the t/bodies
3 extra ones in middle

[Chipwizards]

Don't AT bodies have two sets of stud holes at the ends, or did I just imagine that?

Don't forget that you need a tad more piston clearance for the inlet valves because they are bigger or you'll have to compromise inlet advance a bit, which you don't want to do if you can avoid it.

[axsaxoman]

yes they do .
but the c2 head is missing the 3 top centre studs that the vts head has
we had quite a few problems with c2 vts manifolds breaking studs due to this
Too much weight on them --so drill head and make studs same as vts is my advice

[Christian555]

OK, thanks for that information. I will continue with some more research and look at the options available. I'm trying to decide what is the cheaper option for gains...getting the current one port & polished or the TU5JP4/TU5JP4S instead.

[welshpug]

getting either worked over will cost the same.