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12G787 Manifold
Posted: Wed May 26, 2010 11:16 am
by jaguar68
Hi Chaps,
Is the 12G787 manifold suitable as a straight bolt on for the 1098cc engine or does it need to be modified in any way?
Regards
John
Re: 12G787 Manifold
Posted: Wed May 26, 2010 1:55 pm
by bmcecosse
Number means nothing to me - can you post up a picture ? But any A series manifold will certainly fit any other A series head!
Re: 12G787 Manifold
Posted: Wed May 26, 2010 4:37 pm
by RobThomas
Straight swop in terms of basic shapebut takes a larger carb with different mountings (diagonally). Later Mini manifold.
Re: 12G787 Manifold
Posted: Fri May 28, 2010 7:29 pm
by jaguar68
The manifo0ld has the carb attached which I believe is an H4, or should be, as it's allegedly from a 998cc Mini
Cheers
John
Re: 12G787 Manifold
Posted: Fri May 28, 2010 8:56 pm
by bmcecosse
HS4 or HIF 38 if it's on the diagonal mounting studs. Much better carb (either of them) - should boost performance.
Re: 12G787 Manifold
Posted: Sat May 29, 2010 8:05 pm
by jaguar68
My mistake, it should be an HS4 carb, not an H4 as I stated previously. I'm using a 12G295 cylinder head running a 9.5:1 compression ratio, or will be when the engine is built
Cheers
John
Re: 12G787 Manifold
Posted: Sat May 29, 2010 9:53 pm
by bmcecosse
Hold on to your hat!