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Your cart is empty.MADE IN THE USA. Complete rebuild kit for all Holley 4150 carburetors. This covers list numbers 4776 4777 4779 4780 4781 and all HP model carburetors. All non stick gaskets, 6.5 power valve and .110 needle and seats. This comes with float leveling instructions and mixture screw adjustment procedure.
Steve Weigl
2025-09-05 09:10:29
Nice kit. Everything you need to freshen up this carburetor.
jefferyekallsen
2025-09-01 14:27:53
Good quality and easy to use
Ed
2025-08-25 10:12:42
Used this for a 600 cfm vac secondary, everything fot fine and the truck runs great, used some of the parts on a 650 brawler double pumper as well, no issues
DualDrive 36
2025-07-30 13:26:47
I've found Allstate carbs the place to go for original Holley (and other) parts. The only reason I didnt give this kit a 5 star was that the 2 check valves for the accelerator pumps (this kit covers double pumpers) were not included. If included I'd consider this the perfect 4150 kit and buy no other. All the parts were of original quality so why spend another 20-25 dollars more for the Holley kit?Kudos to Allstate. If you need a part for a Holley carb they probably have it along with rebuilt carbs.
Young Auto Parts Inc./NAPA
2025-07-24 13:06:16
Very nice kit.. Fits Holley and my Barry Grant Carb... Fast ship
Customer
2025-07-09 15:52:01
Good kit,good quality
robert mcfee
2025-06-12 14:10:43
works good
Jesse H.
2025-06-01 12:22:26
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stuart fleming
2025-05-26 15:26:07
I bought this to rebuild my holley carb. It does not come with a secondary vacuum diaphragm nor does it include gasket's for the secondary metering block so i was a bit disappointed considering the cost.
Steve Weigl
2025-05-23 17:42:58
Nice kit. Everything you need to freshen up this carburetor.
jefferyekallsen
2025-05-19 09:53:51
Good quality and easy to use
Ed
2025-05-10 12:11:57
Used this for a 600 cfm vac secondary, everything fot fine and the truck runs great, used some of the parts on a 650 brawler double pumper as well, no issues
DualDrive 36
2025-03-23 13:37:12
I've found Allstate carbs the place to go for original Holley (and other) parts. The only reason I didnt give this kit a 5 star was that the 2 check valves for the accelerator pumps (this kit covers double pumpers) were not included. If included I'd consider this the perfect 4150 kit and buy no other. All the parts were of original quality so why spend another 20-25 dollars more for the Holley kit?Kudos to Allstate. If you need a part for a Holley carb they probably have it along with rebuilt carbs.
Young Auto Parts Inc./NAPA
2025-02-15 17:47:58
Very nice kit.. Fits Holley and my Barry Grant Carb... Fast ship
Customer
2025-02-11 12:40:54
Good kit,good quality
robert mcfee
2025-02-09 16:25:03
works good
Jesse H.
2025-02-06 19:46:06
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stuart fleming
2025-01-23 14:41:27
I bought this to rebuild my holley carb. It does not come with a secondary vacuum diaphragm nor does it include gasket's for the secondary metering block so i was a bit disappointed considering the cost.
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