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carb help

  1. #1
    Scarab 22 cbrahs's Avatar
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    Default carb help

    looking for numbers on my carb and can't seem to find anything on the main body other than the ones on the horn on top.

    Holley 6R3738 B

    want to rebuild it and need to get the correct kit and power valves. was told it was a holley 850 double pumper.

    any help would be great. I have not pulled the unit off yet to do a very detailed look for numbers due to weather and blowing dirt. don't need an engine full of dirt right now.

    thanks

    Chris
    boat- 95 Scarab 22, 496 stroker, Merlin heads, lots of fun

    Tow Rig- 2011 Dodge 3500 CC Laramie, FASS pump, 160 total gallons of fuel, H&S MCC Terror Custom Tuning, Autometer, Sinister, 5" Stainless Flo Pro TB, S&B, B&W, Ravelco, Pro-Tech, B&W Companion, Pac Brake bags, 19.5 Vision's, now a dually pulling a 36 foot Cyclone and living in it full time

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  3. #2
    gn7
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    Quote Originally Posted by cbrahs View Post
    looking for numbers on my carb and can't seem to find anything on the main body other than the ones on the horn on top.

    Holley 6R3738 B

    want to rebuild it and need to get the correct kit and power valves. was told it was a holley 850 double pumper.

    any help would be great. I have not pulled the unit off yet to do a very detailed look for numbers due to weather and blowing dirt. don't need an engine full of dirt right now.

    thanks

    Chris
    go back and look again. Need the list number




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  4. #3
    Scarab 22 cbrahs's Avatar
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    Quote Originally Posted by gn7 View Post
    go back and look again. Need the list number
    ah shit. thats where i thought they were but its been ages since i have played with carbs. its all been injected supercharger or diesel stuff. will run out and see if i can battle the wind and keep the cover in my yard lol
    boat- 95 Scarab 22, 496 stroker, Merlin heads, lots of fun

    Tow Rig- 2011 Dodge 3500 CC Laramie, FASS pump, 160 total gallons of fuel, H&S MCC Terror Custom Tuning, Autometer, Sinister, 5" Stainless Flo Pro TB, S&B, B&W, Ravelco, Pro-Tech, B&W Companion, Pac Brake bags, 19.5 Vision's, now a dually pulling a 36 foot Cyclone and living in it full time

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  6. #4
    gn7
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    Quote Originally Posted by cbrahs View Post
    ah shit. thats where i thought they were but its been ages since i have played with carbs. its all been injected supercharger or diesel stuff. will run out and see if i can battle the wind and keep the cover in my yard lol
    99% sure its a list 4781 850 OEM carb. Was it on an OLDS, or something like a Harmon Marine engine?



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  7. #5
    Scarab 22 cbrahs's Avatar
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    Quote Originally Posted by gn7 View Post
    go back and look again. Need the list number
    if it does not have a choke horn where will they be?
    boat- 95 Scarab 22, 496 stroker, Merlin heads, lots of fun

    Tow Rig- 2011 Dodge 3500 CC Laramie, FASS pump, 160 total gallons of fuel, H&S MCC Terror Custom Tuning, Autometer, Sinister, 5" Stainless Flo Pro TB, S&B, B&W, Ravelco, Pro-Tech, B&W Companion, Pac Brake bags, 19.5 Vision's, now a dually pulling a 36 foot Cyclone and living in it full time

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    gn7
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    Quote Originally Posted by cbrahs View Post
    if it does not have a choke horn where will they be?
    It won't. If you read 6R3738B on it, its a OEM 850 that came on a number of factory hi po engines.
    If you're looking for a rebuilt kit, this is the cheapest place, and has the best gaskets and parts any where. All good stuff like non stick gaskets and hi flow PV and needle/seat assemblies.

    They have every part for that carb you will ever need.
    HOLLEY CARBURETOR REBUILD KIT MODEL 4150



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  9. #7
    Scarab 22 cbrahs's Avatar
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    here is s couple pics. thanks for the help GN. appreciate it. would LOVE to find an injection kit for it and kill the carb but some dumbass has never made an O2 sensor that works with H2O injected headers. lol. put a guy on the moon but can't finger out how to get o2 readings in water





    boat- 95 Scarab 22, 496 stroker, Merlin heads, lots of fun

    Tow Rig- 2011 Dodge 3500 CC Laramie, FASS pump, 160 total gallons of fuel, H&S MCC Terror Custom Tuning, Autometer, Sinister, 5" Stainless Flo Pro TB, S&B, B&W, Ravelco, Pro-Tech, B&W Companion, Pac Brake bags, 19.5 Vision's, now a dually pulling a 36 foot Cyclone and living in it full time

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