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10-10-2010, 09:09 PM
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Holley List# 4452-1
I have a Holley List#4452-1 600cfm carb that has been sitting in a cabinet for years.... its got to be early 70's vintage or before.
Is it worth anything? Worth rebuilding or better to get something newer... Thanks 
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10-11-2010, 02:47 AM
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i'd keep it and put in a gasket kit
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10-11-2010, 05:49 AM
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It's a 4160, came originally w/a 85 power valve. If it's been sitting, it needs freshening up anyway (renew kit #37-119), so when you are in there, put a power valve in that matches the engine.
It's jetted 63 on the primary side, w/a 39 secondary metering plate (equals a 69 jet). The accelerator pump nozzle was a 0.031". Came w/a purple secondary spring. Good luck.
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10-11-2010, 06:04 AM
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What are you planning to put it on?
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10-11-2010, 11:01 AM
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Actully a friend of my son needs a carb for a 351 ford... just a street DD... and I didn't want to have him take it if they were junk... I know it needs a kit...ideas on what is it worth? Thanks
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10-11-2010, 02:54 PM
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It's jetted too lean for a 351. Primary jet's need to be 122-66, secondary plate needs to be 134-9, with a 125-65 power valve. The 37-119 kit will rebuild it but doesn't come with new jet's or secondary metering plate.
 You can find 600 cfm 4160's on craigs list for around 25 bucks that are rebuildable. 
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10-11-2010, 05:51 PM
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Thanks for the help... I'll have to see if he wants to mess with it...
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10-11-2010, 07:46 PM
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Quote:
While the 1850 Holley 600 cfm 4160-type carb (similar to yours) is jetted 66 primary/#9 plate secondary, it's all but impossible to say exactly what will end up being needed. I would just try the carb as-is, or nearly so- w/a power valve that's 1/2 the idle vacuum w/the trans in "D", or neutral if a stick shift. The original #39 plate will likely be fine on the secondary side, you might (or might not) need to jet up the primary side- but I would run it first to get a baseline before changing things too much- maybe go up a size or two on the primary jets if anything. No rebuild kit that I know of comes w/jets (excepting custom kits made up by the specialty carb shops), some do come w/PV's.
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10-11-2010, 08:58 PM
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I have numerous jets... what made me question using it the most was the venting flapper on top of the fuel bowl... just looks antiquated...
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10-11-2010, 10:14 PM
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From HERE:
 The only drawback to this carb is the check valve for the accelerator pump (the one located in the pump diaphragm chamber) is a "ball and bail" type, they have to be carefully cleaned and checked for proper operation. The later style check valve was a rubber "umbrella"-type valve. But the carb is still fine to use. From HERE:  BALL AND BAIL ON LEFT
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