Yes, they are interchangeable. However, sometimes the
mounting flange is not the same thickness. I think it
happened when changing from HS to HIF's, but I could be
wrong.
If they are a different thickness from the intake manifold,
then you just need some half washers to act as shims to even
it out.
oliver wrote:
> Does anyone know if the exhaust manifolds on MGBs are interchangeable? the
> manifolds appear to be nla, so i couldn't tell from the catalogs.
>
> i would like to get mine ceramic coated, and i have a spare from a 71. mine
> is a 73 with the air holes, but i've already removed the air pump and am not
> concerned about that. i would just like to know if they are
> interchangeable, so i can get the 71 coated, then remove the manifold,
> exhaust, etc and replace all at once without waiting for parts to arrive.
>
> thanks in advance!
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