RE: Ford xf help needed

On Sat, 25 Oct 2003, JAT Richardson wrote:

> > A question has popped-up on a German 7 forum regarding the possible
> > exchange/spec of a Ford xf.
> > The visible numbers quoted are as follows: "711M-6015OA and CS93521"
> 
> I looked this up in my book "Rebuilding and tuning Fords Kent Xflow
> engine", but not much joy.  "711M" means that it is
> a post-1970 engine, using larger bore cam followers and a stronger
> block and is to be preferred over the earlier engine.
> The rest I don't know, but I'm told that there is also an AX block,
> made in South Africa, that has been further
> strengthened and is the best one to use - although the 711 is fine for
> most purposes below 170bhp.  The weakest point is
> the valve train (A combination of using high-leverage rockers and less
> than perfect lubrication especially at low revs)
> and non-forged pistons.  Hope this helps
> 

A reference I have says that 6015 was simply Ford's part number for a
cylinder block.  It also concurs that the 711M is a generally useful
version of the block at least up to 150hp.

Anyway, that leaves OA and CS93521 up in the air yet...

						---john.
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