Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

Swap 84 Firebird SE 4bbl for 84 Z28 4bbl HO Carb

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Old Jul 16, 2005 | 10:35 PM
  #1  
ryanc's Avatar
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From: Memphis, IN
Car: 84 Firebird SE
Engine: 305 4bbl
Transmission: Borg Warner T-5 (on my 3rd one)
Swap 84 Firebird SE 4bbl for 84 Z28 4bbl HO Carb

Would I be able to take my 4bbl carb off my 84 firebird se and replace it with a H.O. carb off a 84 Camaro Z28 H.O.? They're both the same year and the same engine size, just the Camaro is a H.O. model. Would I get more horsepower from this? I've already taken the dual snorkel air cleaner off it and put it on my firebird and all is well with that. Any info is appreciated.

Ryan
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Old Jul 17, 2005 | 09:43 AM
  #2  
Vader's Avatar
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Welcome Aboard!

The carburetor is the same on both engines. Exchanging them won't improve anything unless there is a problem with your existing carb. And it that's the case, it would probably be better to rebuild your existing carb than to acquire another one that might just as easily need repairs.

Are you having problems with your current unit?
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Old Jul 17, 2005 | 11:48 AM
  #3  
ryanc's Avatar
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From: Memphis, IN
Car: 84 Firebird SE
Engine: 305 4bbl
Transmission: Borg Warner T-5 (on my 3rd one)
oh i thought there was something different about the carb because I was looking at this site http://www.f-body.org/tech/3rd_gen.htm and in the induction column, it says "4bbl" for my car and "4bbl HO" for the Z28 HO.

I don't really have a problem with my current carb. I know it was rebuilt at least once but that was probably a good 10 years ago or more.

What's different about the Z28 engine that gets it the extra horsepower. I'm pretty much looking for an easy way to get a boost in my firebird.
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Old Jul 17, 2005 | 07:40 PM
  #4  
taume's Avatar
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Car: 1984 Carmaro Z28 HO
Engine: 305 HO
Transmission: 5 spd
The difference between 305HO and 305

Are the the HO Has the Corvette Cam in it and of coarse the the duel snorkel.
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Old Jul 17, 2005 | 09:53 PM
  #5  
ryanc's Avatar
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Joined: Jun 2004
Posts: 14
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From: Memphis, IN
Car: 84 Firebird SE
Engine: 305 4bbl
Transmission: Borg Warner T-5 (on my 3rd one)
looks like the dual snorkel is all i'm gonna get off the motor from that z28. Already took the tranny. thanks for the info!
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Old Jul 29, 2005 | 10:02 PM
  #6  
phess11's Avatar
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From: NE Ohio
Car: 83 Z28
Engine: 305 (LG4)
Transmission: THM700R4
Axle/Gears: 10 bolt, 3.23 non-LS
They are the same carb, but they have different parts. The HO carb has DR secondary rods and the SE has CH. I think the hangers are different as well. Also the Secondary Butterfly tension is less on the HO.
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