Twin-H option for 1951 Hudsons

Lee ODell
Lee ODell Senior Contributor
edited November -1 in HUDSON
Thanks to Alex posting Hudson Bulletins there is a 1951 Parts Merchandising Bulletin No. 13 - Dual Carburetor Intake Manifold Kit for use with two WA1 or 2YF Carter Carburetors and two AC Air Cleaners.

The Kit consists of an aluminum casting which replaces the intake manifold for a single dual carburetors the necessary linkage and attaching parts for throttle control, Installation Instructions are also included.

Part Number SP 306216 Hudson Intake Manifold Kit for Dual Carburation Models 5A,6A,and 7A

This information verifies what my uncle told me about my fathers new 1951 Hudson Hornet having dual carburetors. It would have been nice if he had keep it.

Have a nice day, Lee

Comments

  • Park_W
    Park_W Senior Contributor
    What's the date of that bulletin, Lee? It's often a bone of contention whether Twin-H was actually available in '51.
  • dwardo99
    dwardo99 Expert Adviser
    The most interesting thing about that is that it is made from aluminum. I wonder why they went to cast iron? Maybe the aluminum ones cracked more than the iron ones. I'd love to have an aluminum twin-H.
  • Lee ODell
    Lee ODell Senior Contributor
    edited February 2011
    Park W wrote:
    What's the date of that bulletin, Lee? It's often a bone of contention whether Twin-H was actually available in '51.

    Date of Parts Merchandising Bulletin 13 is 8/1/51 Park.

    It wasn't even called Twin-H yet. It was called Hudson Dual Carburetor Intake Manifold Kit. The Butler book has the Twin-H Power term coming in the middle of 1952 production. Someone may have a 1952 bulletin with a date when Twin-H teminology came into being. Twin-H sounds much better.

    Hudson shortened the termonology. In Bullitin 8, 5/12/52 it is called Twin Carburetor Kits. Still not Twin-H yet. Still looking for that answer.

    I noticed that the manifold for 1951 was made with aluminum. Interesting.

    Have a nice day, Lee
  • [Deleted User]
    [Deleted User]
    Has anyone seen one of these Aluminum Twin Carb manifolds. I have heard about them and read the bulletins but I have yet to see one in the wild. I know they are shy but I would like to see one.
  • Lee ODell
    Lee ODell Senior Contributor
    edited February 2011
    51hornetA wrote:
    Has anyone seen one of these Aluminum Twin Carb manifolds. I have heard about them and read the bulletins but I have yet to see one in the wild. I know they are shy but I would like to see one.[/quote

    There was a post recently that someone installed or had a polished intake on his car. I don't remember if he mentioned whether it was aluminum, original or not, where or when it was posted. I didn't give it much thought at the time, until after I saw this bulletin listing the aluminum 2 carb manifold. I'd like to see and own one myself. It would save alot of weight.

    I was in second grade when Dad bought the 51 hornet. I do not recall ever looking at the engine. If it had not been for my uncle recently telling me it had 2 carbs I wouldn't have known.

    Lee
  • [Deleted User]
    [Deleted User]
    Stand by guys. The twin H aluminium intake is being reproduced as we speak. :)
  • RL Chilton
    RL Chilton Administrator, Member
    The "bone of contention" that Park mentioned fits into my thoughts as this:

    At the late date of August '51, (I'd have to look it up to make sure) '52's were either all ready out or about to come out, which means for all practical purposes, and only the last of the '51's, '52's were the first available year for twin carburetion. That said, as this was a dealer option, y'all know as well as I that dealers with '51's stuck in the showroom with '52's about to show up on their doorstep, that some were, perhaps, outfitted with duals to get them sold.

    Seems like every time I think (concerning Hudsons), " . . . there's no such animal", an example shows up out of the woodwork. In other words, it would not surprise me at all if there were '51's with originally equipped dual carburetors.

    Finally, as I've brought this subject up before, when Hudson folks ask me if they can put Twin-H on their (pre-'52) cars and be true to the original, I always tell them, SURE! As it was a dealer installed option, not included on the build sheet, or build tag, what exactly is the difference whether it was put on in 1951 or 2011?

    Thanks for the info, Lee. Would be interested to know exactly when the "Twin-H" moniker was listed, if you find it.
  • SamJ
    SamJ Senior Contributor
    RL Chilton wrote:

    Seems like every time I think (concerning Hudsons), " . . . there's no such animal", an example shows up out of the woodwork.

    Truer words were never spoken!
  • RonS
    RonS Senior Contributor
    Russ, one of the great things about HET is that they don"t "judge" their Hudsons to strict standards, and most clubs that do judge to original standards,ie, as the car left the factory, don't know what is correct or what is PERIOD CORRECT. If an owner is restoring his(her) Hudson "as left the factory"( as per AACA), then documentation may be necessary to verify whether some thing in question is factory available, or after market dealer installed. I believe Twin-H (dual carbs) was not offered by the factory until March 1952. Therefore, no 1951 owner can be prove dual carbs as an authentic factory option. And some judge(me) would know that. Bye bye Grand National Award, if one is so inclined.
  • dougson
    dougson Senior Contributor
    It would seem that with the conventional exhaust hook up, the aluminum would have warped, cracked, leaked in short order. Most extant cast iron twin H manifolds I've seen have cracks.
  • Lee ODell
    Lee ODell Senior Contributor
    More information. In the book TOTAL DOMINATION by Jack C. Miller page 17, is a August 12,1951 photo, "Teague discusses Hudson's new Twin-H Power option with NASCAR Official Cannonbal Baker" The 1951 Detroit 250 marked the debut of Twin-H-Power on Hornets in competition.

    Page 18, photo of Twin-H engine and Thomas and Teague at Darlinton Sept, 3, 1951.

    Page 26, Parts Merchandising Bulletin #13, Date 8/1/51. Availability of dual carb kit .

    Hemmings digital, Aug 1, 2008, HUDSON TWIN H-POWER article has dealer optional Twin-H Power unit first avilable Nov 1951 and became a factory-in option for 1952 Hornets on Jan 18,1952. (No Hudson Bulletins mentioned to verify these dates).

    Lee O'Dell
  • Lee ODell
    Lee ODell Senior Contributor
    edited February 2011
    Hudson308 wrote:
    Lee ODell wrote:
    There was a post recently that someone installed or had a polished intake on his car. I don't remember if he mentioned whether it was aluminum, original or not, where or when it was posted. I didn't give it much thought at the time, until after I saw this bulletin listing the aluminum 2 carb manifold. I'd like to see and own one myself. It would save alot of weight.

    I've been running a polished factory aluminum single-2bbl. intake on a few different motors over the last dozen years with no cracking problems. The first couple years it was bolted to the factory exhaust manifold. The three other aluminum examples I've got have no cracks, either. I've seen a number of cracked (iron) Twin-H intakes, though.


    That looks cool. What are those round things on the side of the header tubes.

    Lee

  • Lee ODell
    Lee ODell Senior Contributor
    edited February 2011
    I found an early Hudson reference to Twin-H, page 53 TOTAL DOMINATION. It is dated April 1, 1952

    TO: ALL, ZONE, OTHER DISTRIBUTORS AND DEALERS
    SUBJECT: Twin-H Power for the Hudson Hornet -- Option E

    It is basically a sales pitch telling about the benefits of and encourageing everyone to order Twin-H Hornets.

    Signed by N. K. VanDerzee, Vice President

    In other sources, Twin-H part numbers
    Bulletin 13 - 8/1/51
    for 1951 Hudsons (SP 306216)
    Bulletin 8 - 5/12/52
    for 1952 Hudsons (SP 307554) Model 5B
    for 1952 Hudsons (SP 307555) Model 5A, 6A, 6B

    Total Domination, page 60 & 61 Has the 1952 Hudson Group Parts Catalog - Severe Usage Parts list shows 7 different Twin-H kits along with all the other severe usage parts available.

    Lee
  • hudsontech
    hudsontech Senior Contributor
    edited February 2011
    Lee ODell wrote:
    I found an early Hudson reference to Twin-H, page 53 TOTAL DOMINATION. It is dated April 1, 1952

    TO: ALL, ZONE, OTHER DISTRIBUTORS AND DEALERS
    SUBJECT: Twin-H Power for the Hudson Hornet -- Option E

    It is basically a sales pitch telling about the benefits of and encourageing everyone to order Twin-H Hornets.

    Signed by N. K. VanDerzee, Vice President

    In other sources, Twin-H part numbers
    Bulletin 13 - 8/1/51
    for 1951 Hudsons (SP 306216)
    Bulletin 8 - 5/12/52
    for 1952 Hudsons (SP 307554) Model 5B
    for 1952 Hudsons (SP 307555) Model 5A, 6A, 6B

    Total Domination, page 60 & 61 Has the 1952 Hudson Group Parts Catalog - Severe Usage Parts list shows 7 different Twin-H kits along with all the other severe usage parts available.

    Lee

    And from out of the woodwork........................ :lol:

    Really tho. The last 1951 Hudsons were produced in October 1951 - 6952 of them. The first 1952 Hudsons appeared in Nov. 1951 - 792 produced.

    I think Russell is pretty close - if the Twin-H (Dual Carburetor or whatever) option was available at that time, given what the Hornets were doing on the race tracks at that time, I'm sure savvy dealers would be bolting Twin-H set-ups to just about anything on their lot they could get them on. The adverts would have read something like "NOW AVAILABLE - The famous Twin-H (or twin carburetor or whatever) that is used on the Fabulous Hudson Hornet!!! Fit your Hudson up today just like the Teaguemobile!!!!"

    Hudsonly,
    Alex Burr
    Memphis, TN
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