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Author
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Topic: Holley casting # help
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V8 Thumper
Gearhead Posts: 603
From: Orange, Ca. United States of America
Registered: Dec 2001
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posted 03-11-2002 11:20 AM
   
Hey guys... I need some help, as my limited Holley experience will show. What I've got is a square bore vac. secondary, maybe you can help with these casting numbers:Air horn:
3878261-EH
LIST-3310
861 Metering blocks:
5271
4519 Jets: 68's and 73's I'm getting ready to REALLY start on my 331 stroker, would like to use this carb if it's worth a damn.
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SteveLaRiviere
Administrator Posts: 21832
From: Saco, Maine USA
Registered: May 99
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posted 03-11-2002 11:38 AM
That's a good carb, it's a 750 vacuum secondary. It could be a bit big, that depends on how radical you set up the 331.------------------
'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
MCA Member # 47773
Always borrow money from a pessimist, they don't expect it back.
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V8 Thumper
Gearhead Posts: 603
From: Orange, Ca. United States of America
Registered: Dec 2001
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posted 03-11-2002 12:25 PM
Thanks Steve... it's been years, but I think I pulled it off of a 327 'Vette motor. The 331 will be primarily street, NOT a daily driver. 270S, Trick Flow heads, RPM air gap, four speed with 3.70-ish gears, fairly aggressive street package. I'm thinking leaner jets to begin with...Is it a 4150, 4160, or??? (I don't know squat about Holleys, sorry) What kit would I need to overhaul it? [This message has been edited by V8 Thumper (edited 03-11-2002).]
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kcode
Gearhead Posts: 2024
From: alvaton,ky,usa Suburb of Bowling Green, M&M #79, MCA #29208
Registered: Jun 99
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posted 03-11-2002 01:13 PM
Its is a 4160 family, it does not have a secondary metering block. It should have a metering plate. Sounds like someone already made a conversion to metering block. Should work fine on a 331.Mike
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V8 Thumper
Gearhead Posts: 603
From: Orange, Ca. United States of America
Registered: Dec 2001
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posted 03-11-2002 02:05 PM
quote:
Originally posted by kcode:
Sounds like someone already made a conversion to metering block.
How will this conversion effect the mixture, as opposed to the plate? What do you think about the jet sizes?
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SteveLaRiviere
Administrator Posts: 21832
From: Saco, Maine USA
Registered: May 99
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posted 03-11-2002 02:26 PM
quote:
Originally posted by V8 Thumper:
How will this conversion effect the mixture, as opposed to the plate?
It will make it more tunable. The size jets you have seem like a good starting point.
------------------
'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
MCA Member # 47773
Always borrow money from a pessimist, they don't expect it back.
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V8 Thumper
Gearhead Posts: 603
From: Orange, Ca. United States of America
Registered: Dec 2001
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posted 03-11-2002 03:12 PM
Thanks for the info, guys. At least SOMETHING is falling into place!
Thumbing through the Summit bible, they list a several different overhaul kits. With the secondary metering block conversion, do I order a kit for 4160 or 4150? $20 for either of those kits, or $77 for the 'Trick Kit'. Big difference, which one should I buy?
$12 for the book, 'Holley Carb. Guide For 4150/60, by Mike Ulrich'... good investment?
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steve'66
Gearhead Posts: 3653
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 03-11-2002 04:00 PM
Get the kit for a 4160 (vac secondary). There are too many unneeded parts in the trick kit.  SteveW
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kcode
Gearhead Posts: 2024
From: alvaton,ky,usa Suburb of Bowling Green, M&M #79, MCA #29208
Registered: Jun 99
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posted 03-11-2002 10:18 PM
Steve,
I'll have to disagree on the rebuild kit. Since assuming someone has added the secondary metering block (secondary jets), actually converting from a 4160 to a 4150, the renew kit, as Holley calls them, should be for a 4150. He will need the additional gaskets for the secondary block. The 4160 kit will have the funky metering plate gaskets.  Mike
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Just Strokin
Gearhead Posts: 179
From: Tuscaloosa, Alabama
Registered: Dec 2001
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posted 03-11-2002 10:56 PM
Air horn:
3878261-EH
LIST-3310
861Metering blocks:
5271
4519 Jets: 68's and 73's Guy's, this is the old 3310 that was rated at 780 cfm with vacuum secondaries. It is the model 4150 (he said it has a secondarly metering block and jets). It would make a good baseline carb to get the engine and chassis working and then play with it some with such things at adjustable secondary spings, pump nozzles and cams. Or even look for a 700/750DP that maybe one of your buddies has on his shelf. Renew kit is 37-1539
Trick kit (the way to go) is 37-933 the carb probably came with 72's in front and 76's in the rear. [This message has been edited by Just Strokin (edited 03-11-2002).]
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steve'66
Gearhead Posts: 3653
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 03-11-2002 11:12 PM
I stand corrected. SteveW
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V8 Thumper
Gearhead Posts: 603
From: Orange, Ca. United States of America
Registered: Dec 2001
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posted 03-11-2002 11:25 PM
Thanks to ALL you guys... I do appreciate your tolerance of my ignorance! I've built a some Quadra-Bogs, some Jimmy Carter's, just never had a Holley. Exactly what I was hoping to hear, in having a good piece to run as a baseline carb, and still have the capacity to tweak and tune. Thanks again,   !
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Hemikiller
Journeyman Posts: 62
From: Clinton, CT
Registered: Feb 2002
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posted 03-11-2002 11:45 PM
Actually, that is a factory Chevrolet Holley carb for a 1965 Chevelle with the 425 horse 396 BBC. I think you have a nice eBay item there, let the masses decide the price, and buy yourself a new DP 700 or 750.
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V8 Thumper
Gearhead Posts: 603
From: Orange, Ca. United States of America
Registered: Dec 2001
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posted 03-12-2002 12:07 AM
quote:
Originally posted by Hemikiller:
Actually, that is a factory Chevrolet Holley carb for a 1965 Chevelle with the 425 horse 396 BBC. I think you have a nice eBay item there, let the masses decide the price, and buy yourself a new DP 700 or 750.
Well, sh*t... just when I think I've got the situation under control... 
That's an attractive option, are you sure about it being a 396 carb? I may be sitting on a goldmine...
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