If it's a 1.3 it might have smaller ports as well.
But, i'd have thought they would be as cast, not machined bigger on the 1.6
So maybe it is the same casting but just fitted with smaller seats and
valves.
But, then, the "1.3" is cast into it so they must change at least that on
the mould so they could change the cores for the ports as well.
Don't know to be honest.
Jim
--------------------------------------------------
From: "Dave the Subbie" <[email protected]>
Sent: Thursday, February 16, 2012 11:53 PM
To: "Quantum Owners Group" <[email protected]>
Subject: [Quantum Owners] Cylinder Head Casting Nos.
I've just acquired a 1.3 CVH head in a pile of bits. The intention was
to weigh it in for scrap as the 1.3 only has small exhaust valves and
I have plenty of heads anyway.
But I've noticed that it is a 81SM6090 casting, with the cross-
hatching. I know that, if it was a 1.6 this would be very desirable,
as it can be machined for bigger inlet valves than the other castings.
It does have the smaller exhaust valves and has "1.3" cast into it, so
it's definitely a 1.3. If it is the same as the other head, I guess
you would just machine both inlet and exhaust valve seats out, but I
don't know if that's the case.
Does anyone know if it's worth keeping, as I don't want to weigh it in
if it is useful to someone?
Dave
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