Author Topic: 1973 440 Thermoquad  (Read 2974 times)

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chris401

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1973 440 Thermoquad
« on: October 23, 2016, 09:46:43 AM »
From a class A motor home. From memory it looks like the same one I kitted years ago. Assuming it is not cracked, is this anything special that can be used as a daily driver carb over the 68 QJet I am running now?

e philpott

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Re: 1973 440 Thermoquad
« Reply #1 on: October 23, 2016, 12:20:57 PM »
if it truly is a 1973 motor home carb then it least it has/should have a good fuel curve ...... wether it better than the Qjet is hard to say , probably more tuning options on the Qjet that is available .... but a good carb is a good carb , just have to try it

chris401

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Re: 1973 440 Thermoquad
« Reply #2 on: October 23, 2016, 03:44:16 PM »
if it truly is a 1973 motor home carb then it least it has/should have a good fuel curve ...... wether it better than the Qjet is hard to say , probably more tuning options on the Qjet that is available .... but a good carb is a good carb , just have to try it
Are you running one on a 428?

e philpott

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Re: 1973 440 Thermoquad
« Reply #3 on: October 23, 2016, 04:30:37 PM »
not running one , still have a complete one under the bench ...... but 30 years ago I built a bunch of them , you don't see them anymore out here ..... some of the 340 Dusters had them and ran fine .....

FE Jonny

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Re: 1973 440 Thermoquad
« Reply #4 on: December 11, 2016, 07:11:10 PM »
The worst carb I have ever had the displeasure of working with, complicated and temperamental. But I like Carters and Rochesters and been known to run a Holley on occasion.
Jon Heintz

chris401

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Re: 1973 440 Thermoquad
« Reply #5 on: December 12, 2016, 08:36:36 AM »
Is anyone reproducing the body?

machoneman

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Re: 1973 440 Thermoquad
« Reply #6 on: December 12, 2016, 08:44:58 AM »
I don't think so as the thermoplastic used in the main body way back them has fallen out of favor with moulders.  After 45 or so years, the industry has moved on although I'm sure, if demand was there and the molds were still available, a more modern thermoplastic could be used.
Bob Maag