In a message dated 28/12/2007 7:50:26 A.M. Pacific Standard Time,
jello@ida.net writes:
Anyone have experience with an MGA and the Crossflow head?
Yup, lots.
No problem fitting them into an MGA engine bay, although as you say, a bit
cramped when you need to get to the distributor.
When you really need the hot air in winter, the fresh air supply isn't all
that critical. Just terminate the RH duct as the LH one used to be, in front of
the carbs. The heater then picks up prewarmed engine bay air which works
just fine. If the head you get doesn't have the two bolt attachment for a
heater valve, you can get an inline valve operated by the same cable - no big
deal.
I have collected some period literature and original fitting instructions at
_http://www.rhodo.citymax.com/f/HRG_Information.pdf_
(http://www.rhodo.citymax.com/f/HRG_Information.pdf)
The Mk 4 head was better than the modern crossflows, but it in turn flowed
better than the earlier HRG models. Some porting will improve things. The
HS6 carbs would make the most sense with a tuned engine. Webers are overkill
for the street and offer most benefit at higher RPM where few people run their
engines unless they race them.
Bill
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