twin H for jets

[Deleted User]

Can someone tell me if the twin H setup for a Jet, is interchangeable with what was installed on the Hornets ?

I'm not too "up" on Jet parts, but have had a request from someone who wants to buy a twin H setup for a Jet.

silverone

[Deleted User]

Most defininetly not interchangeable . The Jet motor is more closely related to the straight eight than a hornet motor.
Although at first glance under the hood a Jet Twin-H looks simmilar. But it is a much smaller motor - 202 cubic inch. The whole Jet car only has a handfull of items it shares with the bigger Hudson.
Some part's your friend will find fit his Jet that also fit Big Hudson:
1) Back-up light delete plates (same as 1954's)
2) The shift linkage arms and bushings on steering column.(same as two lever in tepdowns)
3) The wheels are different but will fit, the bolt pattern is the same.
4) The book shows the Jet using the same muffler as a"262" Pacemaker.
Although its more like a resonator and used with a bigger unit.
5) The ignition switch is the same as the Big cars that have the twist to start key.
6) The headlight bucket, the part recessed in the fender is same as Big car.
7) The HUDSON leters on hood are same as 1954 big car.
8) The shift knob threads are the same as the other Hudsons .

That's all that comes to mind right now. I've scrapped a few so have run
across these little items over time.
The Jet Twin-H is harder to find , you should be able to with a little
effort . Hope this has been helpfull,
Roger

53jetman

I must disagree with you Roger on the ignition switch. The big cars used a recessed ignition switch that was lighted when the parking lights were turned on so you could find it in the dark. All Jets used a more universal ignition switch (much like the switch Nash used) with key turn starting feature.

Jerry

[Deleted User]

I think your right , sorry I got confused.
I remembered something else common was the tail light sockets.
Those are the same as the big car.
Don't worry about correcting me ,
That make's three mistake's I've made in my life,
Roger:P

54SuperWasp

HI guys, while in this topic, I have a 262 with a Twin-H in my 54 Super Wasp but have also a 308 as a spare. Should I have problems with my 262 and go for a swap, would the Twin-H settling be ok for the 308? Thanks.

[Deleted User]

Very interesting - thanks for the replies Roger & Jerry !
Could the twin H set-up on the Jet have been a spin-off from the Italia? (it seems a rather odd accessory to offer on a "compact" car in the fifties) but then again, given the reputation of the Hornet at the time, I suppose you wouldn't want its little brother to be a slouch either.
One wouldn't think there'd have been a lot of orders for this option, but I guess if they're not that rare, there must have been lots of 'em.

[Deleted User]

Do you mean put the manifold as a whole unit onto the 308?
Or do you mean switch out the entire motor. The two motors are
outwardly the same size . One should fit where the other had been.
If you want to put the manifold from the "262" onto the "308".
It should bolt on however the book does list different part no's.
#307514 for the "262"
#307183 for the model 7C (hornet 308)
As I recall the main differance is the size of the carb.
The smaller one has smaller bore carb's.
#307294 "262" motor (WA1990S
#307106 "308" motor (WA1968


All that being said the size of the mounting studs and spacing should be the same.
It would not breath quite as well with the "262 unit"
Hope this answer's your question,
Roger

[Deleted User]

I believe the person (from overseas)who emailed me, has the only Hudson Jet in the entire country he lives in, and is looking for a twin H setup for it.
Since I wasn't sure if the 262 or 308 manifolds would fit a Jet motor, I thought maybe someone would enlighten me on the subject on this forum (or maybe even have a twin H setup for a Jet for sale).
If they are the same, I imagine it shouldn't be too difficult to find one, but if a Jet needs a special manifold, then finding that may be a horse of a different color entirely.
Sorry for the confusion, I should have made what I was on about more clear.

silverone

[Deleted User]

There are Twin-H units around for the jet, I spoke to a guy at the
Rockford meet this year that had one. If your friend is serious you should be able to find one. I could even see if the one I just mentioned was still around.
Be advised they are usualy not cheap, especialy if they still have the air filters.
It has allways puzzled me how I run across so many old Twin-H engine's
with no air cleaners. Where did they all go?
Roger

Lee ODell

Twin-H air cleaners go the way of swap meets, Ebay, setting on a shelf to admire by someone that likes there looks.

If I had the space to put them, I wouldn't mind having a pair myself.

Lee O'Dell

54SuperWasp

Thanks Tallent R for your answer. If my 262 runs strong, I should keep it as is. If not, I might use the 308 instead and put the Twin-H from the 262 on it. If I understood well, it would be better to change the carbs. Thanks again!

[Deleted User]

The 202 is 6" shorter than the other big 6's.

The 262 twin H carb bolts are 3/16" closer together than the 308 carbs. They are not interchangable.

[Deleted User]

They do have the same casting numbers.

Geoff

The only mechanical parts that interchange between the Jet 202 and the larger motors, are the valve lifters. However, the 55 and '56 Hornet 6's use the same flywheel and clutch as the Jet.

shadetree

Oblong the 308 carbs mounting holes with round file enough to mount on 262 twin H, worked for me. Melvin