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MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG MGA - exhaust manifolds

Hi, I am intending to replace my 1600 engine with a big bore MGB engine. Will a 3 branch MGB exhaust manifold fit/ be made to fit? What do other people do?

Thanks
s page

I think most people keep the MGA manifold although it is a little restrictive at higher rpm.

The other alternative is something like the Maniflow system, depending on how well you want the big-bore engine to breathe and how deep your pockets are.

http://www.maniflow.co.uk/index.php?view=product&product=1190

Regards...JB
John Bray

On a LHD car it fouls the steering column, and I believe the exhaust angle also fouls the toeboard rails
dominic clancy

Hi Dominic,

I have a Maniflow system for my LHD 1600 with an 18V engine. Do you mean that this will be hard to install due to lack of space?

Regards Anders
T Dahlberg

Hi Dominic,
I have a Maniflow system for my LHD 1600 with an 18V engine. Do you mean that this will be hard to install due to lack of space?
Regards Anders
T Dahlberg

Hi again,

just noticed that the discussion was concerning an exhaust manifold for an MGB, sorry!

Regards Anders
T Dahlberg

Anders
Is your MG right or left hand drive ?
R
Roger W

Glad I picked up this thread as my Twin cam has a B engine and it needs a system. Although the B 3 branch manifold will, it seems fit a RHD A, there is a problem with the clearance / angle to clear the toe board cross member.
http://www.maniflow.co.uk/index.php?view=product&from=169&product=1184 although for the A engine, it will fit (I’m told) the B head. The picture of it does look as though it has the correct bend in the separate extension pipe for joining a cut down standard A system.
Incidentally the Maniflow one looks the same as the one sold by Moss but a lot cheaper. Any other ideas welcome.
J Hughes

This thread was discussed between 21/11/2014 and 27/11/2014

MG MGA index

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