[urq] Cilminder heads .

[p.carlier]

Today , I found out that there are 3 different cilinder heads used on the 10VT ur-quattro's . 

I have this 1981WR ( US- WX) wich was , let's stay pollite , severly mistreated by its previous 
owner(s)  . No choice but to take it all apart and start from scratch .  

The solid lifters head must have been  taken off with a chisel or a screwdriver . 
Also found a piece of a bolt in one of the cilinders . 
Severly scratched and bruised . Possably salvageable but not quite sure .  
But then I have this brand new hydraulic head available , so I thought why not use that one . 

To my surprise the old head cam shaf doesn't fit the new head . 
Further inspection showed that this old head is abt an inch longer then the other
ones I have availble  . I have both solid and hydraulic heads I can compare with . 
The dizzy lock nut is on the rear side of the head , between dizzy and firewall and not between 
the 5'th cilinder spark plug and the dizzy like I'm used to . Never knew this . 
Did some asking around , and I was told this kind of head was used until the early 1982's . 
Mine must have been one of the last ones .  

So now I need to make a decision . 
- Either try and rescue the solid lifters head .
  But I've heard hat the valve cover gasket is NLA , don't we love audi :)) . 
- Or continue with the hydrualic head anyway , and use an MB/MC camshaft . 
The MC head is all ready to go : machined , cleaned , new valve guides and gaskets , new 
   hydraulic lifters etc etc so I would prefer to use that one .  

Is there any BTDT with the MC camshaft on an early UR-q engine . 
Cam timing does alter engine caracteristics , and I have no idea if this MB cam is gonna be for better 
or for worse compared to the WR/WX . Ign and fuelling remain stock . 


Pat