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Posted

hey guys been offered an unused crossflow cylinder head machined and ported etc by Paul Fisher its never been used and is un run still has the preserving oil on it.

 

the work carried out is as follows:

 

work was carried out by Paul fisher as you would except too a very very high standard, work includes new inlet and exhaust valves the sizes are inlet 41.2mm and exhaust 34.5mm, bronze valve guides, double valve springs etc.

 

the price is £400 just wondered if its a good deal also does bronze valve guides mean it can run on unleaded.

Posted

£400 is ok for a well modified cylinder head. I'm not familiar with Paul Fisher - does his stuff go well?

 

Bronze Guides just mean the guides will last longer than running the valves straight in the head material - they should help pull some heat out of the valves too but will have no bearing on running unleaded.

 

Usually you match valve springs to the cam you want to run, you don't want to run springs any more powerfull than you need for a given cam profile putting unnecessary pressure (wear) on the follwers and cam. Likewise you don't want them too weak to avoid valve bounce.

 

So on one hand it's good value but it might not be everything you want - a set of Kent valve springs could set you back somewhere around £80 depending on spec.

 

Who is selling it? Can you find out what springs are in it?

Posted

I think im gonna give it a miss the guy brought it off another guy but he assures me the head is a work of art etc but he does not know if its been converted for unleaded which worries me

Posted

all i can find at the mo is that he was an engine shop apprentice for BRM somewhere between 1946 and 1977

or

he built boat engines

thats about all i can find so far :?

Posted

I have meet him and seen some of his work mainly lotus twin cams, pre xflows and xflows. he does do some very good work and realy does now his stuff, before I went down the st route for my mk2 cortina I had him lined up to do me a xflow but was a bit pricey in the end. if I was looking for a well made head I think I might be tempted with that.

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