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MG MGB GT V8 Factory Originals Technical - RV8 Header installation

I'm preparing to convert to RV8 headers. This is mainly to deal with the under-bonnet heat problem.
I've checked the archives and the pages on the MGOC.
I'd like to get some pictures if anyone has any. The pics on the MGOC board aren't working but more would always help anyway.
I'm especially interested in engine bay and also under wheel arch.
I've bought the kit from Mike Wheatley including the reinforcement rings which look to me as if they will do well as templates as well as adding strength when they are seam welded into place. The holes certainly look as if they are going to be awfully big.
I'm trying to find out whether any steering mods are necessary and anything else that I should watch out for.
My car is RB and I'm not proposing to go for twin pipes.


Yes the holes are big but also help to remove hot air from the engine bay - the wheelarch is a low pressure area at speed.

No changes required to the steering set up.

Watch out for how the brake line runs to the crossmember bracket - it is very close to the down pipe.

Also don't park with the wheels on full lock after a run - the tyre will melt!
Chris Betson

master cylinderke care with the position of the holes; don
Geoff King

Marc, check your inbox - I found some pics that may be of use...

David - thanks for the pictures. Very helpful.

Now, I gather that the big trick is to get the holes in the right place and that the position is always a little different depending on the installation. So how is it done? I can only imagine that one uses line of sight to make the smallest hole possible to fit the headers in place - this hole would be in the central position. When one is sure that this has been achieved then the template is placed around that spot and the full hole is cut. Am I on the right track? It sounds primitive but I don't see another way.
I suppose that there is no way to do the job without the engine out.

Also I have to say that I am worried about melting tyres. How likely is there to be a problem with 7" wheels and 195s?

This thread was discussed between 20/03/2002 and 21/03/2002

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