I'm still waiting for my Vizrds book to get here...This could be answered
there already...
But, I would think that you could take the stock cast iron header and have
some real fancy work done on them to make them more header like.
No bending by a muffler shop to make it fit.
Also, aren't there headers on the market for 1275's and MGB's that are
impregnated with Ceramic to keep the heat more in the manifold? As well as
special manifold gaskets that can transfer or not transfer the heat from
the head properly for certain advantages?
Q
At 03:01 PM 6/25/97 -0500, Robert Allen wrote:
>Adrian Jones wrote:
>>
>> Well, then I thought thats almost the price of a good used one, which is
>> almost the price of a nice new one, which is almost the price of a header.
>> So that leads me to start a new thread on headers.
>
>Oh boy. Here we go.
>
>The standard exhaust manifold for the dual-SU 'B' motors was a pretty
>efficient design; it is unlikely you can install a header and get better
>performance out of a fairly stock motor. Also, being cast iron, it tends
>to keep the heat in better than headers. This is important as the carbs
>sit above the header and you are likely to 'heat soak' the float bowls
>in hot weather and/or slow traffic. Finally, all headers are not created
>equal. The sheet steel that makes up the manifold seal can be somewhat
>thin and flimsy -- thus exhaust leaks are an ungoing maintenance
>headache.
>
>A new cast iron manifold can be a good value.
>
>--
>Bob Allen, Kansas City, '69CGT, '75TR6, '61Elva(?)
>"Never use a big word when a dimunitive one will do."
>
>
--
Jay Quinn - Systems Engineer
jpquinn@cyberramp.net
htp://www.cyberramp.net/~jpquinn/index.htm
'62 Healey Sprite MKII HAN6L2874
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