Holley model 4010 double pumper

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Aug 24, 2011 | 02:09 PM

46yblock

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Holley model 4010 double pumper

I bought this on ebay with a bad pic and poor description. It arrived today and is a big surprise. List 84012, model 4010, 600 cfm, mech. secondaries, manual choke, annular discharge. Seems to be an obvious take-off from the Autolite 4100 series. Does anyone have experience using one of these?

Aug 24, 2011 | 08:56 PM

LxMan1

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From: Louisville,Ky.

Yeah, they are good carbs. Summit racing just rebranded them and started selling them as their house brand of carb.

Here is the vac secondary carb: http://www.summitracing.com/parts/SU...00VS/?rtype=10

Aug 24, 2011 | 09:28 PM

46yblock

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The Summit carb does look like a replication. I looked around at their offerings on the carbs but didnt see mechanical secondaries. Am curious.

Since I like the Autolites this is kool for me. I also found where Holley apparently made a 2010 2V, copied from the 2100s. Havent seen one or even heard of them before today.

Aug 26, 2011 | 01:25 PM

DrainBramage

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Yep, those 4010's are neat carbs. Its like a mechanical secondary Autolite 4100 but far easier to find parts and uses Holley jets. I've actually been looking for one for a while, surprised I missed it on eBay!

Nice find! What are you going to run it on?

Aug 26, 2011 | 06:48 PM

46yblock

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Actually I dont have anything to run it on. Dont think it will do well on a 312/322 that is getting close to finish. Maybe the spreadbore version would do better.

Aug 28, 2011 | 07:47 PM

LxMan1

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I don't see why it wouldn't run fine on that engine.

Aug 29, 2011 | 01:34 PM

DrainBramage

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If it was vacuum secondary, I'd make you an offer. The poor FE gets bad enough mileage already without me fat-footing a mechanical carb

Sep 19, 2011 | 04:54 PM

crazyeddie

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Is it a spreadbore? Similar to Holley's 4175? I've never seen a Holley like that!

Sep 19, 2011 | 05:16 PM

#10

46yblock

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Yes the 4011 is definitely spreadbore, vacuum secondaries, single pumper. I hadnt seen one until these two arrived a couple weeks ago. It doesnt have metering blocks or plates, but annular boosters, with top plate similar to the 4100s. Picked up a spreadbore to square bore adapter too. Been thinking that like LxMan indicated, the 4010 may work just as well as the 4011. Will eventually find out. I will post a couple pics tomorrow.

Sep 19, 2011 | 06:00 PM

#11

crazyeddie

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Annular boosters are a plus! I'm interested to hear how it works for you.

Sep 20, 2011 | 06:21 PM

#12

LxMan1

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The 4010 is a squarebore and the 4011 is a spreadbore if I'm not mistaken.

Sep 20, 2011 | 07:16 PM

#13

46yblock

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Here are some pics. Dont know if I can get 4 in one post.

The first three are the vacuum secondary 650 cfm 4011 spreadbore, auto choke. The last is the bottomside of the 600 cfm 4010 double pumper mechanical secondary square bore, manual choke. Both are dual feed.