Carb Identification

TD561 · 08-30-2011, 12:01 AM

Please help me out. I am new to stock. I received a second carb with the stocker I just purchased. I was told it was recently done by Hedworth. What # do I look for to identify this carb. Where on the carb is it located? Also where do I locate what carb# I need for my combo? It's a 75 Nova hatch. With a 165 up 350 and auto trans.

I see 71325r on one carb ear also on secondary tops 32712 & 32747. On bottom secondaries 29909

Any help is appreciated. Sorry if this is simple.

Lew Silverman · 08-30-2011, 08:22 AM

Good Question!

Go to the NHRA web-site, click on the "Competition" button , and look for "Engine Blueprint Specifications". The 1975 Chevrolet 350 factory rated at 165 HP uses a Rochester 4-barrel #7045206 with the automatic, (the number should be stamped into the side of the carb vertically) although any Q-jet with dimensions of 1375x2250/1218xAir Valve can be substituted. I'm not really sure how you identify who modified the carburetor, but there may be a tag or other indication somewhere.

Good luck with the build!

Lew

Bob Pagano · 08-30-2011, 10:28 AM

Also remember carb # dose not matter it is the size dose, it gives measurements in the carb specs.

TD561 · 08-30-2011, 08:57 PM

Ok the # is 7057202. It does not appear to me that this is legal for my car. I am going to sell it. What is a race prepped Hedworth of this # worth?? Make me offers or steer me in right direction to sell this. I'm just a few $ short of ordering my trans from Lynn this could be just what I need to seal that deal.

Again thanks as there is tons to learn

Lew Silverman · 08-30-2011, 09:22 PM

That carb fit's a 1977 Chevy 350 rated at 180 HP with AT. It's the same size as the one that came on the 1975 Nova, so you can probably use it on your car, maybe as a spare.

Hope that helps!

Lew

08-30-2011, 12:01 AM	#1
TD561 Junior Member Join Date: Jul 2011 Posts: 11 Likes: 0 Liked 0 Times in 0 Posts	Carb Identification Please help me out. I am new to stock. I received a second carb with the stocker I just purchased. I was told it was recently done by Hedworth. What # do I look for to identify this carb. Where on the carb is it located? Also where do I locate what carb# I need for my combo? It's a 75 Nova hatch. With a 165 up 350 and auto trans. I see 71325r on one carb ear also on secondary tops 32712 & 32747. On bottom secondaries 29909 Any help is appreciated. Sorry if this is simple.

08-30-2011, 08:22 AM	#2
Lew Silverman VIP Member Join Date: Mar 2010 Location: Newport News, VA Posts: 1,435 Likes: 371 Liked 129 Times in 59 Posts	Re: Carb Identification Good Question! Go to the NHRA web-site, click on the "Competition" button , and look for "Engine Blueprint Specifications". The 1975 Chevrolet 350 factory rated at 165 HP uses a Rochester 4-barrel #7045206 with the automatic, (the number should be stamped into the side of the carb vertically) although any Q-jet with dimensions of 1375x2250/1218xAir Valve can be substituted. I'm not really sure how you identify who modified the carburetor, but there may be a tag or other indication somewhere. Good luck with the build! Lew __________________ Lew Silverman #2070 "The Wagon Master" N/SA

08-30-2011, 10:28 AM	#3
Bob Pagano VIP Member Join Date: Jun 2002 Location: New Holland, PA Mooresville,NC Posts: 1,163 Likes: 241 Liked 16 Times in 11 Posts	Re: Carb Identification Also remember carb # dose not matter it is the size dose, it gives measurements in the carb specs. __________________ Bob Pagano A/SA

08-30-2011, 08:57 PM	#4
TD561 Junior Member Join Date: Jul 2011 Posts: 11 Likes: 0 Liked 0 Times in 0 Posts	Re: Carb Identification Ok the # is 7057202. It does not appear to me that this is legal for my car. I am going to sell it. What is a race prepped Hedworth of this # worth?? Make me offers or steer me in right direction to sell this. I'm just a few $ short of ordering my trans from Lynn this could be just what I need to seal that deal. Again thanks as there is tons to learn

08-30-2011, 09:22 PM	#5
Lew Silverman VIP Member Join Date: Mar 2010 Location: Newport News, VA Posts: 1,435 Likes: 371 Liked 129 Times in 59 Posts	Re: Carb Identification That carb fit's a 1977 Chevy 350 rated at 180 HP with AT. It's the same size as the one that came on the 1975 Nova, so you can probably use it on your car, maybe as a spare. Hope that helps! Lew __________________ Lew Silverman #2070 "The Wagon Master" N/SA