----- Original Message -----
From: Bob Van-Kempen <bobvankempen@optusnet.com.au>
> I have an opportunity to pick up a 1500cc Spitfire engine for my 1963 Mk1
> and also a 3.9:1 diff. Can anyone advise me whether the 4:11 diff and Mk1
> gearbox will hold up with a 1500 Mk4 engine?
Hi Bob,
The gearbox should be OK, but there is a serious risk of breaking the
smaller output shafts on the diff. The 3.89 unit is (in my opinion) a more
suitable ratio for the 1500 engine in any case. If you wanted to stick to a
4.11 ratio then obtain one from a later MkIII Spitfire as that would have the
beefier shafts,
Cheers,
Bill.
Rarebits4classics
.......just what you've been looking for
PO Box 1232
Calne
Wiltshire
SN11 8WA
United Kingdom
www.rarebits4classics.co.uk
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