Twin-H Question- Will 1955 Unit work on 51,52,53,54 Models?

[Deleted User]
[Deleted User]
edited November -1 in HUDSON
Is there any difference on these Hash Twin - H units, like the linkage? When did they start with the integrated balance tube? Thanks, Niels

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  • nick s
    nick s Senior Contributor
    niels, i believe the 55 and 56 manifolds are the same (i.e. with the intergrated tube). you need the exhaust as well as the intake. The castings are completely different and will not mount together with the 52-54 exhaust but as a unit can be used. The stepdown linkage definately works with the hash set-up though your exhaust will require adaptng. The hash exhaust outlet is at a different angle, tighter to the manifold, the flange is indexed differently and it is 2 1/4".
  • [Deleted User]
    [Deleted User]
    nick s wrote:
    niels, i believe the 55 and 56 manifolds are the same (i.e. with the intergrated tube). you need the exhaust as well as the intake. The castings are completely different and will not mount together with the 52-54 exhaust but as a unit can be used. The stepdown linkage definately works with the hash set-up though your exhaust will require adaptng. The hash exhaust outlet is at a different angle, tighter to the manifold, the flange is indexed differently and it is 2 1/4".



    Thank you for the info~!
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