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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Thu Jan 24, 2013 9:39 pm Post subject: holley motocraft double pumper |
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So I got a Holley double pumper for a ford because it says motorcraft. Anyboy have ever used this carb, and how do I find the correct linkage for it |
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Twilightoptics Hardcore (12sec Club)
Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Jan 24, 2013 9:47 pm Post subject: |
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That's one of the most ambiguous questions you've ever asked.
what did it come off of?
list number?
what's it going on? How can we help with linkage if we don't know what you're trying to link up. For all I know you're trying to put it on a leaf blower.
C'mon you know these details!
_________________ A redline a day keeps the carbon away! |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Thu Jan 24, 2013 9:51 pm Post subject: |
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Lol. Is going on may camaro on top of a new performer rpm I got on trade. I believe the numbers are 6r5696b |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Thu Jan 24, 2013 9:52 pm Post subject: |
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I don't know what it came off of. Was already off. It is lso my first holly |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Jan 24, 2013 10:13 pm Post subject: |
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That number is a casting number not the list number.
Likely an early 80's Ford truck emissions carb.
There will be a FoMoCo part number (which will be like E4TF-1234-A) and a Holley list number which will be four or five numerals and then possibly a dash and one additional number (like 1234-1). |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Thu Jan 24, 2013 10:28 pm Post subject: |
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E3te-9510-rd
List-50003-1
2984
All the numbers I saw |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Jan 24, 2013 10:36 pm Post subject: |
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That's not a double-pumper then.
'83 Ford truck, Holley 4180 600CFM. Can't seem to find jet numbers on it but probably big because it's listed for a 460.
Weren't those the carbs with no idle mix screws? |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Thu Jan 24, 2013 10:41 pm Post subject: |
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Ya. After looking at it more I learned it wasn't double pumper. It doesn't have the two fuel inlets. It is still a big carb compared to my quadrajet. Do you think it will be better then my 85 truck qudarajet. |
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chevymad Master B
Joined: 11 Jan 2004 Posts: 5474
1987 Pontiac Formula
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Posted: Thu Jan 24, 2013 10:44 pm Post subject: |
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Your quadrajet is a much bigger carb. Quads are either 750cfm or 850cfm. That holley is only a 600. Dual inlets does not mean double pumper either. A double pumper has an accelerator pump on each float bowl. |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Thu Jan 24, 2013 10:46 pm Post subject: |
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I guess I meant bigger in size when you look at it. |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Jan 24, 2013 10:47 pm Post subject: |
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jchaussee wrote: | Ya. After looking at it more I learned it wasn't double pumper. It doesn't have the two fuel inlets. |
Do you know what the phrase "double-pumper" means? It has nothing to do with having two fuel inlets or one inlet and a transfer tube.
jchaussee wrote: | It is still a big carb compared to my quadrajet. |
Bigger how? That truck quad will be a 750-ish CFM carb if I recall my Dad's old '84 correctly.
jchaussee wrote: | Do you think it will be better then my 85 truck qudarajet. |
My opinion, worth what you paid for it: No. Lack of tunability is the downfall of those Ford emissions carbs.
*Edit: Brandon beat me to the first two questions. |
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chevymad Master B
Joined: 11 Jan 2004 Posts: 5474
1987 Pontiac Formula
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Posted: Thu Jan 24, 2013 10:49 pm Post subject: |
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Not sure how good that carb is or how easy it is to install on a chevy. A good and cheap 600cfm holley though is a list 1850. I've used one on my truck for quite a few years and it works very nice.
You want a carb that looks physically big.. I converted my 1850 to use center hung float bowls and added a secondary metering block.. Thing is gigantic for only a 600cfm carb. |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Posted: Thu Jan 24, 2013 11:05 pm Post subject: |
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chevymad wrote: | Not sure how good that carb is or how easy it is to install on a chevy. |
Did a bit more digging and my hunch is looking right. Those carbs have a goofy primary block with angled jets and no idle mix adjustment. From what I've been reading Holley purposefully but the alignment dowels in the wrong place so you can't just swap on the usual 4160-style block.
I agree wholeheartedly on the 1850 with the secondary block form a 4150. Plenty of tuning options and will run great once dialed in. |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Thu Jan 24, 2013 11:47 pm Post subject: |
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Cool. Thanks fellas. I gues ill keep the q jet for now |
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Alphius Peanut
Joined: 05 Sep 2006 Posts: 2429 Location: Grand Mound
1984 Chevrolet Camaro Z/28
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Posted: Fri Jan 25, 2013 7:59 am Post subject: |
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Keep the Qjet. They're great carbs if they are dialed in properly. Plus you already have a good one on your car. There's no need to "upgrade" to a smaller carb. Sell the Holley to some schmuck, especially since you don't have a particularly usable Holley in the first place. _________________ 84 Camaro Z28 - LS1/T56
85 Silverado - Low and Slow |
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jchaussee Member
Joined: 14 Nov 2010 Posts: 1318 Location: renton
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Posted: Fri Jan 25, 2013 12:48 pm Post subject: |
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Ya. I will prob take it to that carb shop in Kent and have them tune it after I put on my other heads and new intake manifold |
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