Stub stacks and SU carb sizes

[GlenM]

I thought the early ones had HS4's then they switched to HIF4's in the 70s. My parents have a very late chrome bumpered MGB Roadster and I am sure they are HIF4's (with integral float chamber) and 1 1/2". The HIF44's came later and are 44mm (1.73"). There was also an HIF38 (38mm or 1.5"). I don't think they fitted either of these metric ones to the MGB.

Spot on!

Thought so. I bought some MGB carb spacers to use on a 1500 Midget and they fit the HS4's, so the stub-stacks will definitely fit too.

[Jon Tilson]

Ok I must be misremembering my MGB's then....

Been a while since we had one...

Tony (Mig Welder) can confirm as he has both outside his mansion....

I guess a HIF 38 would be v similar to an HIF4 then, going by the old imperial measurement code...4 being 1.5 inch and 6 being 1.75 and 8 being 2 inches.

In that case the B sub stacks will fit an 1850....

I'll get my coat...

Jonners

[Karlos]

These look nice:
http://www.med-engineering.co.uk/med-stub-stacks

[soe8m]

These look nice:
http://www.med-engineering.co.uk/med-stub-stacks

Almost perfect. The Dutch versions are threaded and fitted with bolts from behind. So no flow disturbing holes in the trumpet. And the vacuum bores are angled and escape at the side also not in the trumpet for the same reason.

Jeroen

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