Carb question??

[cj69RR]

A local guy is selling a 74 thermoquad that he said was off of a 440. My question is what do I need to look at on this carb? I'm good with Holley, edelbrock and quadrajet carbs. Not very knowledge on the thermo quads? What I see is they were 800, 850 and some 1000 cfm's but they were for the high performance versions. I'm currently running a edelbrock 650 vac secondary's. But I would like to have a carb to make it 100% correct also. Thanks in advance.

 

[moparstuart]

i have good luck runnin thermo quads , but the plastic bodies do warp and leak pretty easy

 

[moparstuart]

i have good luck runnin thermo quads , but the plastic bodies do warp and leak pretty easy

 

[Basketcase]

cheack for wear on the throttle shafts.

 

[moparchris]

Thermoquads can be magical or the work of Satan. Check for a warped main body, they are phenolic. Also the shafts can be sloppy but a specialty carb shop can remedy that. I wonder if the phenolic is machinable?

 

[SomeCarGuy]

Someplace was selling the main bodies for about 50 bucks a few years ago. Not sure about now.

 

[cj69RR]

Thanks for the advice. I'll let you all know what I find.

 

[cj69RR]

Didnt get to even look at it, it was sold. Guess I should have jumped earlier. Next time. Thanks