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Classifieds => Engines / Engine Parts For Sale => Topic started by: jim brock on March 12, 2016, 01:28:47 PM

Title: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on March 12, 2016, 01:28:47 PM

Holley #4781 - 850 cfm double pumper, 110 needle and seats installed, new rebuild  $350.00   Holley #4779 - 750 cfm double pumper, 110 needle and seats installed, 50cc primary/50cc secondary accelerator pumps, new rebuild  $300.00  Holley marine 750 cfm,  #80537 double pumper, dual feed, 4 corner idle screws, 110 needle and seats installed, like new, new rebuild, $400.00 these carbs have just been done this month they are fresh, the first 2 pics are the 750 marine carb. the other 2 are marked what they are.  Jim 1818-890-1867

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on March 13, 2016, 05:58:42 PM

I got some pictures posted, miracles happen !!!!!!

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on April 05, 2016, 06:39:21 PM

Bump  !!!

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: bubblin_hallett on April 12, 2016, 10:33:28 AM

Where are you located?

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: If Looks Could Kill on April 16, 2016, 03:25:01 AM

he's in Pacoima or real close to it, 5 and 118

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on May 12, 2016, 07:24:48 PM

Bump  !!!!

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: Brad @ SCJB on May 13, 2016, 11:37:38 AM

Jim,

What carb do you suggest I go with for my application? This is going on a stock 454 in an open bow cruiser. Nothing fancy. I have a Demon 850 vac secondary that falls on its face because the secondary slams open. I've also been told that the 850 is too big for my application. I can switch to a 750 and get better gas mileage too. Let me know which one i should go with. Thanks!

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on May 13, 2016, 12:07:32 PM

If it were mine stock 454 covered engine I would go with the marine 750.its a double pumper, call me 1818-890-1867

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: Derrick on May 13, 2016, 04:37:31 PM

Non related. How can you tell the difference between a 750 and a 850 if the choke horn is milled off. My buddy gave me a carb that he thought was a 850 but the metering blocks number run as a 750 part


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Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: crewchief22 on May 13, 2016, 04:48:02 PM

Quote from: Derrick on May 13, 2016, 04:37:31 PM

Non related. How can you tell the difference between a 750 and a 850 if the choke horn is milled off. My buddy gave me a carb that he thought was a 850 but the metering blocks number run as a 750 part

750 double pumper #4779 should have 1 3/8" venturi diameters and 1 11/16" throttle bores, while the 850 #4781 should be 1 9/16" V and 1 3/4" TB.

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: Derrick on May 13, 2016, 04:56:06 PM

Quote from: crewchief22 on May 13, 2016, 04:48:02 PM

750 double pumper #4779 should have 1 3/8" venturi diameters and 1 11/16" throttle bores, while the 850 #4781 should be 1 9/16" V and 1 3/4" TB.

Thanks. I'll measure it when I get to the shop after work. Thanks.


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Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on May 13, 2016, 05:17:33 PM

the throttle plates of 750 will have a 172 and 173 stamped on the bottom of them, 850 will have 180 stamped on the bottom of both plates

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: Derrick on May 13, 2016, 05:19:45 PM

Quote from: jim brock on May 13, 2016, 05:17:33 PM

the throttle plates of 750 will have a 172 and 173 stamped on the bottom of them, 850 will have 180 stamped on the bottom of both plates

Thanks jim. Much appreciated


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Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on June 13, 2016, 06:11:02 PM

Bump,  have the 850  and a 750  left.

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: ol guy on June 28, 2016, 02:45:17 PM

Jim do you still have the 4781 and if so how much. Mark

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on June 28, 2016, 02:55:21 PM

Yes $350.00 rebuilt

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on July 15, 2016, 04:28:54 PM

Bump

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on August 05, 2016, 01:44:12 PM

Bump

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on August 29, 2016, 02:17:28 PM

Bump !!!

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on September 22, 2016, 04:54:51 PM

Bump !!!

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: mikemike1983 on September 27, 2016, 05:52:04 PM

do you still have the 750 marine carb?also do you have paypal?

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on September 27, 2016, 06:07:37 PM

the 750 marine carb has been sold. still have the #4779 double pumper 750 cfm

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: mikemike1983 on September 27, 2016, 06:29:30 PM

whats your opinion on closed hatch?what type of carb is best..i have a stock 454

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on December 04, 2016, 01:39:48 PM

Bump !!

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on December 19, 2016, 11:50:51 AM

Bump

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on February 17, 2017, 01:38:11 PM

Bump  still have the 850 cfm and the 750 cfm carbs

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on March 05, 2017, 06:24:32 PM

Bump  !!!!

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: quick olds on March 17, 2017, 10:30:30 AM

What's the price on the 850?

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on April 10, 2017, 05:06:50 PM

Bump

Title: Re: Holley carbs rebuilt, 850 and 750 cfm 3 carbs
Post by: jim brock on April 21, 2017, 12:56:13 PM

850 carb sold.  Still have the 750 carb, #4779