Hi,

I need a question answering please

On a rs 500 inlet manifold does anybody know if the inlet runners have got dowels to locate them on the head?

I've got a set of inlet runners for sale on ebay as I don't need/want them and I've been told the std 500 ones have got dowels on them as std.

 

anybody know??

do they have dowels or not?

 

yes 500 trumpers have locating dowels.

 

cheers ryan,

have you seen them with your own eyes? as I've spoken to 2 people with 500 manifolds and they don't have them and the one I have doesn't have them either

 

Only seen one RS500 one and that did NOT have them either.
????
tabetha

 

I've not seen them either - why would the manifold be doweled to the head if it's not port matched

I've seen aftermarket O-ringed done on std manifolds and I can understand doweling if the heads ported but std?

the std gasket wouldn't fit and I've never seen a 500 inlet gasket marked up differently

 

Its not for sealing purposes, its done because of the vibrations on a solid mounted engine shaking the manifolds loose , and yes, ive seen loads of dowelled manifolds and the last std RS 500 engine i had in had dowels in the manifold on ports 1 & 4 !

 

I have a 500 one in my shed and it has holes in it to locate the dowels - also the throats closest to the head are machined out slightly for about the first 10mm

 

cheers for the info

I'll edit my advert later - so its a case of some have, some haven't but they should have the holes for the dowels?

strange though I'll have to go and see my friends one to have a lookie if it's got the holes but he's not noticed.

 

110% Rs500 does have dowels...

 

cheers for that

by any chance does anybody have any pictures - I've gotta now show the people who said that theirs haven't got them that they should have them