| In addition to RayKay's comment, you will also need to change the cylinder head oil feed routing. This can be done using the existing hoses by jiggling th efittings around or you could buy a pre-made set from a 9*6/748SP model.
The bypass valve is only a few quid from a dealer.
RX
p.s. don't overtorque the hose fittings!! | 
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