1725 Alloy head tuning info

Not sure this is the best place for this thread - sure it'll get moved if not!

I've taked these from the 'Alpine Guide' a publication made by the Sunbeam Alpine Owners Club. The info is quite old - mostly looks like it was written in the 1980s - so availability / prices are well out.

One useful thing it does cover is swapping the oil pumps around between earlier and later models - this may have solved the problem Admin had with his practical classics motor?

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The bit on cluches is also worth knowing.

There are 2 Litre Alpines out there but they are renown for having head gasket woes. Another mod i've see on race cars is to offset the head by 10mm so that the valves better align with the cylinder.

Perhaps a little extreme for a PB...
 
Is there anything in it about converting Triumph J-Type Overdrives (they have flange fittings) to fit Commer (spline type) propshafts?? A stab in the dark.....

Cheers

Ruairidh
 
That wouldnt be a big problem IMHO. The problem would be extending the box shaft to take the OD unit

Cheers
Jules

RatSport www.ratsport.co.uk
 
Have I incorrectly assumed that the hydraulic part of the O/D unit is the same internally?

It is exactly the same externally and I had assumed the various spacers made for different applications overcame the problem. Would be interested to hear more from you on this one if you have time.

Cheers

R
 
Had a look about gearboxes but doen't say a great deal other than the late type won't fit in an alpine without cutting the transmission tunnel.
 
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