[C2] What Holley carb is this on my '67?
#1
Pro
Thread Starter
What Holley carb is this on my '67?
Here's a photo of the Holley 4160 on my '67 coupe:
The numbers on the air horn are as follows:
LIST - 1850 - 3
0320
I ask because the carb works fine, I had it rebuilt a couple of years ago. But, the fuel line is not correct. Instead of a steel line all the way to the carb, the PO used a piece of rubber hose to go the 'last mile' to the carb. I fixed a leak that sprung from one of the rubber hose clamps once already, and we all know how disastrous a fuel leak on a hot manifold can be!
So, I ordered a repro steel fuel line from Ecklers and set about replacing the line. Alas, I discovered that the carb has no corresponding female fitting to screw the male fitting on the fuel line!
This tells me the Holley on my car is not the original carb. It looks to be a service replacement. A friend tells me it is a Holley intended for a FORD, because the fuel line intake fitting is different than what GM used.
So, can you tell me what application the carb on my car was intended for? Is it intended for a Ford?
If I don't want to replace the carb, can I get the required fitting to connect the proper steel fuel line to it? Where would I find such a thing?
Thanks in advance,
-Alex
The numbers on the air horn are as follows:
LIST - 1850 - 3
0320
I ask because the carb works fine, I had it rebuilt a couple of years ago. But, the fuel line is not correct. Instead of a steel line all the way to the carb, the PO used a piece of rubber hose to go the 'last mile' to the carb. I fixed a leak that sprung from one of the rubber hose clamps once already, and we all know how disastrous a fuel leak on a hot manifold can be!
So, I ordered a repro steel fuel line from Ecklers and set about replacing the line. Alas, I discovered that the carb has no corresponding female fitting to screw the male fitting on the fuel line!
This tells me the Holley on my car is not the original carb. It looks to be a service replacement. A friend tells me it is a Holley intended for a FORD, because the fuel line intake fitting is different than what GM used.
So, can you tell me what application the carb on my car was intended for? Is it intended for a Ford?
If I don't want to replace the carb, can I get the required fitting to connect the proper steel fuel line to it? Where would I find such a thing?
Thanks in advance,
-Alex
#2
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its just a generic over the counter hot rod Holley
#4
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That is the cheapest, most generic 600 cfm carb Holley makes. Single feed, side hung bowls, fuel transfer tubes, secondary metering plate. Not a performance carb by any means.
That said, they work fine for cruising and should give you years of trouble free operation.
That said, they work fine for cruising and should give you years of trouble free operation.
Last edited by Factoid; 02-01-2019 at 09:24 PM.
#5
Safety Car
It seems that Holley doesn't sell a hard line inlet fitting for your primary fuel bowl. You can get a replacement swivel fitting and try cutting the hose barb off to install a compression union or similar coupling to plumb a hard line or find a replacement original style primary fuel bowl. If it runs well, you'd be better off getting some SAE J-30 specification fuel hose and smooth (not worm screw type) band hose clamps to replumb that section of hose.
#6
Race Director
I think you could use the Marine bowl Holley sells with the correct fitting. They sell a couple of fitting so you would need to verify fuel line fitting size to get the right one.
https://www.holley.com/products/fuel...rts/34R10918AQ
https://www.holley.com/products/fuel...parts/26-27The
The basic carb is fine for your engine. If may not be the high performance Holley line but it's still a very good carb and basically equivalent to what came with the engine originally.
https://www.holley.com/products/fuel...rts/34R10918AQ
https://www.holley.com/products/fuel...parts/26-27The
The basic carb is fine for your engine. If may not be the high performance Holley line but it's still a very good carb and basically equivalent to what came with the engine originally.
Last edited by DansYellow66; 02-02-2019 at 07:46 AM.
#7
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Also I don’t think that carb has a internal fuel filter. So you could run a 63-65 hard steel line into a stock filter and then a rubber hose into the carb.
#8
Instructor
Alex, can't see from your photo, how is the choke connected (is it connected)? Factory set up used a choke rod from the carb. to a recess in the intake manifold along with the bi-metal spring & related parts.
Phil M.
Phil M.
#10
Pro
Thread Starter
Hi Phil - The carb has an electric choke fitted. It works just fine. The original setup had a divorced choke, but that stuff is now all gone. My guess is that a PO junked the original Holley 3810 and replaced it with the current Holley 1850.
#11
Pro
Thread Starter
So, did Holley 1850's have an internal fuel filter? This was the case with the OEM Holley 3367/3810 carbs that were fitted to the 300/350 hp motors from the factory. Anything's possible, but whoever replaced the OEM carb would have considered the need for a fuel filter - I hope!
#12
Pro
Thread Starter
I think you could use the Marine bowl Holley sells with the correct fitting. They sell a couple of fitting so you would need to verify fuel line fitting size to get the right one.
https://www.holley.com/products/fuel...rts/34R10918AQ
https://www.holley.com/products/fuel...parts/26-27The
The basic carb is fine for your engine. If may not be the high performance Holley line but it's still a very good carb and basically equivalent to what came with the engine originally.
https://www.holley.com/products/fuel...rts/34R10918AQ
https://www.holley.com/products/fuel...parts/26-27The
The basic carb is fine for your engine. If may not be the high performance Holley line but it's still a very good carb and basically equivalent to what came with the engine originally.
Thanks for reassuring me that my Holley 1850 is a good carb. It certainly runs fine. I had it rebuilt last year and so far, so good. I could get a replacement Holley 3357A which is the correct carb for '67 with a 300 or 350 hp small block. These can be had for about $710. But, would I really notice much difference? Your thoughts?
Back to the Holley 1850 on my car... In order to plumb the OEM hard line direct to the carb, would I have to replace the front fuel bowl with one that has a female fitting?
Or, can I screw in an adapter of some sort to allow the OEM hard line to be connected to the front float bowl on the carb I have now?
#13
I posted above this screen should be in the fitting. https://www.walmart.com/ip/Holley-26...&wl13=&veh=sem
#14
Team Owner
I don't think I've seen an L79 with the metal line all the way to the carb.
#15
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The L79 used hard line all the way to the carb. The filter was in the carb:
GM didn't use rubber hose on the pressure side of the fuel system. For good reason.
Lars
GM didn't use rubber hose on the pressure side of the fuel system. For good reason.
Lars
Last edited by lars; 02-04-2019 at 09:29 PM.
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#16
Team Owner
Last edited by 65GGvert; 02-04-2019 at 09:32 PM.
#17
Race Director
Hi Dan,
Thanks for reassuring me that my Holley 1850 is a good carb. It certainly runs fine. I had it rebuilt last year and so far, so good. I could get a replacement Holley 3357A which is the correct carb for '67 with a 300 or 350 hp small block. These can be had for about $710. But, would I really notice much difference? Your thoughts?
Back to the Holley 1850 on my car... In order to plumb the OEM hard line direct to the carb, would I have to replace the front fuel bowl with one that has a female fitting?
Or, can I screw in an adapter of some sort to allow the OEM hard line to be connected to the front float bowl on the carb I have now?
Thanks for reassuring me that my Holley 1850 is a good carb. It certainly runs fine. I had it rebuilt last year and so far, so good. I could get a replacement Holley 3357A which is the correct carb for '67 with a 300 or 350 hp small block. These can be had for about $710. But, would I really notice much difference? Your thoughts?
Back to the Holley 1850 on my car... In order to plumb the OEM hard line direct to the carb, would I have to replace the front fuel bowl with one that has a female fitting?
Or, can I screw in an adapter of some sort to allow the OEM hard line to be connected to the front float bowl on the carb I have now?
#18
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It won’t look exactly factory, however this banjo with a 5/16” tube...
https://www.summitracing.com/parts/sum-g3144/overview/
...can be used with this compression fitting to join the hard line from the fuel pump to the carb.
https://www.summitracing.com/parts/rnb-800-142
Simply trim the end of the nipple off the banjo tube and use the double compression to join the hard line from the fuel pump. For less than $20 you are done!
BTW, I didn’t mean to imply you carb is “no good”. It is an excellent and reliable carb. It just lacks the performance upgrades that make it a true performance carb.
https://www.summitracing.com/parts/sum-g3144/overview/
...can be used with this compression fitting to join the hard line from the fuel pump to the carb.
https://www.summitracing.com/parts/rnb-800-142
Simply trim the end of the nipple off the banjo tube and use the double compression to join the hard line from the fuel pump. For less than $20 you are done!
BTW, I didn’t mean to imply you carb is “no good”. It is an excellent and reliable carb. It just lacks the performance upgrades that make it a true performance carb.
#20
Safety Car
It won’t look exactly factory, however this banjo with a 5/16” tube...
https://www.summitracing.com/parts/sum-g3144/overview/
...can be used with this compression fitting to join the hard line from the fuel pump to the carb.
https://www.summitracing.com/parts/rnb-800-142
Simply trim the end of the nipple off the banjo tube and use the double compression to join the hard line from the fuel pump. For less than $20 you are done!
BTW, I didn’t mean to imply you carb is “no good”. It is an excellent and reliable carb. It just lacks the performance upgrades that make it a true performance carb.
https://www.summitracing.com/parts/sum-g3144/overview/
...can be used with this compression fitting to join the hard line from the fuel pump to the carb.
https://www.summitracing.com/parts/rnb-800-142
Simply trim the end of the nipple off the banjo tube and use the double compression to join the hard line from the fuel pump. For less than $20 you are done!
BTW, I didn’t mean to imply you carb is “no good”. It is an excellent and reliable carb. It just lacks the performance upgrades that make it a true performance carb.