Carburetor identification

[MLC Dodge]

Can someone identify this carb on my 1974 Duster? It's leaking pretty bad and I thought I'd replace it. Also, any good place to buy a rebuilt one? I saw them fairly cheap at Rock auto but wasn't sure which one to choose. Thanks.

 

[Oklacarcollecto]

That should be a model Holley 1945. It looks correct to be that.

 

[BillGrissom]

There are many bad rebuilt carbs for sale (including rock's) and many people are disappointed after spending a lot thinking that will solve their problem.

If it is leaking while idling, the bowl must be overflowing - either the float sunk of the needle has junk in it. Both are easy to trouble-shoot and fix. I would try that first. I haven't worked on a 1945, but it looks like you can remove the top fairly easy on the car, and probably re-use the gasket. Stuff some paper towels down the throat in case you drop a screw. If you want to go further, buy a rebuild kit and take it off for some bench work.

Of course, if you can find a new carb on ebay cheap, that might be best. I got a new Carter BBD for my small block for $25 and it works fine. Slant carbs are rarer. I think many would work. People love the Holley 1945. I have a Carter BBS on my slant, which seems fine. I don't recommend the Holley 1920 due to personal experience with 3 bad rebuilt ones. There was a Holley Economizer carb in the early 80's. I see new ones on ebay occasionally.

 

[Bulldozer]

carter BBDs are good carbs in my experience. as Bill states, a lot of disappointment with re-mans. i would just rebuild the carb you have, learn the carb, save some cash.

 

[Oklacarcollecto]

There are many bad rebuilt carbs for sale (including rock's) and many people are disappointed after spending a lot thinking that will solve their problem.

If it is leaking while idling, the bowl must be overflowing - either the float sunk of the needle has junk in it. Both are easy to trouble-shoot and fix. I would try that first. I haven't worked on a 1945, but it looks like you can remove the top fairly easy on the car, and probably re-use the gasket. Stuff some paper towels down the throat in case you drop a screw. If you want to go further, buy a rebuild kit and take it off for some bench work.

Of course, if you can find a new carb on ebay cheap, that might be best. I got a new Carter BBD for my small block for $25 and it works fine. Slant carbs are rarer. I think many would work. People love the Holley 1945. I have a Carter BBS on my slant, which seems fine. I don't recommend the Holley 1920 due to personal experience with 3 bad rebuilt ones. There was a Holley Economizer carb in the early 80's. I see new ones on ebay occasionally.

My BBD Carter had a hole in the float. Less than $10 fixed it while on the car.

 

[MLC Dodge]

Thanks fellas. I found the Holley 1945 on ebay ($200) and rockauto ($130-150). Carb rebuildin' looks scary to me, so I thought I'd just buy one. However, after your comments, I'll give the rebuilding a lash. Is Rockauto okay for the rebuild kits? While I'm on that subject, is Rock okay for all the mopar parts? If not, could you recommend a good supplier for my Duster with knowledge and quality parts (even if a bit more expensive)? Thank you again.

 

[BillGrissom]

I buy a lot from rock. They are just a reseller, so quality depends on what you buy. Shipping can be the killer, so I try to consolidate orders. Autozone's parts are usually more, but the total often comes out less with their "free shipping if >$75".