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Re: [Mgs] MGA crossflow head

To: jello@ida.net, mgs@autox.team.net
Subject: Re: [Mgs] MGA crossflow head
From: WSpohn4@aol.com
Date: Fri, 28 Dec 2007 11:05:55 EST
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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