VR Heads on a VN Series 1 motor?

[V-ahhh]

Hi all i am just wondering if anyone could tell me if vr heads would fit on my vn series one ???

thanks

[v6lux]

This topic has "been done to death"!

Try a site search if no one has the answer!

[Andrew426]

Delcowizid and were discussing this the other night. Cant remember what conclusion we reached. I am running S1 vn heads on my VR, and have for 2 or 3 thousand ks now.

Here is a pic of my S1VN heads (the clean ones) next to my VR heads. Note the two extra holes either side of the middle cylinder on the vn heads. These are for coolant, and join up with the channel next to them a few cms in. The VR also uses a different crankcase breather system to the VN, Il upload a pic of how that works a bit later on
The VR heads are the dirty ones on top

[V-ahhh]

sorry guys i did do a search but didn't find any thing? did you use a vn head gasket on your vr or a vr headgasket?

[Dum*P*ster]

This topic has "been done to death"!

Try a site search if no one has the answer!

Mate... The search function is not working as yet..

*Best yet, I normally google what im after...And it find it via that

[v6lux]

Mate... The search function is not working as yet..

Sorry I didn't know that, but I remember finding about 5 or 6 old threads on the subject a few months ago.


Anyway, I think the main difference with what was stated above, was the inlet manifold water jackets and there was some drilling to be done! SO perhaps it may be easier to use the S1 manifold as well, but there are other external things to modify as well, like the sensor, alternator wiring and water hoses.

[reaper01]

whats the difference between the 2? bigger valves?

[Andrew426]

No difference, Delcowizid reckons VR is a better casting though.

Im pretty sure the stock valves are the same size on both, my VN heads have oversized valves in them (cant remember what size exactly)

Also I used VR gaskets

[delcowizzid]

better casting and roller shafted rockers

[reaper01]

better casting and roller shafted rockers

So having a better casting do they flow better? And the roller shafted rockers, arnt the on s2 vn-vp?

[Andrew426]

So having a better casting do they flow better? And the roller shafted rockers, arnt the on s2 vn-vp?

Nah only on the VR.

They are just roller bearings in the base of the rocker, they arent that exciting.