Replacement Carb

Mark Anderson · 03-01-2009, 01:43 PM

Having a heck of a time finding the correct Thermoquad to build a 1973 400 cubic inch 260HP/auto combination. The NHRA tech guide calls for model #'s 6321 or 6342. The rule book states "replacement carbs permitted provided they are the same model,type,throttle bore,and venturi size. Since the 850 cfm Thermoquads used on big block Mopars were unchanged from 1972 to 1974, would a carb from one of these years be accepted?

David Lee · 03-01-2009, 07:03 PM

Quote:

Originally Posted by Mark Anderson

Having a heck of a time finding the correct Thermoquad to build a 1973 400 cubic inch 260HP/auto combination. The NHRA tech guide calls for model #'s 6321 or 6342. The rule book states "replacement carbs permitted provided they are the same model,type,throttle bore,and venturi size. Since the 850 cfm Thermoquads used on big block Mopars were unchanged from 1972 to 1974, would a carb from one of these years be accepted?

Yes they would be, you can run any of the TQ as long as they are the same size. I have 9013 off a 77 400 that is in primo shape. Look at this site for all the TQ numbers

http://ramchargercentral.com/index.php?topic=14836.0

Chris DeGidio · 03-01-2009, 09:14 PM

Mark,I may have what you're looking for.Let me look thru the carb shelf and see.May be a day or 2.

03-01-2009, 01:43 PM	#1
Mark Anderson Junior Member Join Date: Aug 2005 Location: Michigan Posts: 2 Likes: 0 Liked 0 Times in 0 Posts	Replacement Carb Having a heck of a time finding the correct Thermoquad to build a 1973 400 cubic inch 260HP/auto combination. The NHRA tech guide calls for model #'s 6321 or 6342. The rule book states "replacement carbs permitted provided they are the same model,type,throttle bore,and venturi size. Since the 850 cfm Thermoquads used on big block Mopars were unchanged from 1972 to 1974, would a carb from one of these years be accepted?

03-01-2009, 09:14 PM	#3
Chris DeGidio Member Join Date: Jun 2007 Posts: 364 Likes: 8 Liked 2 Times in 2 Posts	Re: Replacement Carb Mark,I may have what you're looking for.Let me look thru the carb shelf and see.May be a day or 2. __________________ Nautilus Racing