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2.5 Fuel Injected swap to Pontiac 350? Need advice

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Old Mar 20, 2014 | 02:06 PM
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Thirdgendriver's Avatar
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From: Iowa
Car: 85` Camaro
Engine: 355 .3 bored, cammed
Transmission: 350 turbo trans
2.5 Fuel Injected swap to Pontiac 350? Need advice

I just bought a 82` Firebird and it has a 2.5 fuel injected engine and a saginaw four speed. I am seeking advice on what I will need to do. Thanks
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Old Mar 20, 2014 | 02:38 PM
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midias's Avatar
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From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: 2.5 Fuel Injected swap to Pontiac 350? Need advice

Are you planning a Pontiac 350? Or a Chevy 350?
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Old Mar 20, 2014 | 06:48 PM
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From: Milwaukee
Car: 92 Firebird, 77 Trans Am SE, 86 Z28
Engine: 5.7 HSR, T/A 6.6, empty
Transmission: T-5, TH350, T-5
Axle/Gears: 3.08 posi, 3.23 posi, 3.23
Re: 2.5 Fuel Injected swap to Pontiac 350? Need advice

If you are talking Pontiac 350...it is a lot of work. But doable if thats what you really want to do. http://https://www.thirdgen.org/foru...-v8-swaps.html
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Old Mar 21, 2014 | 02:33 PM
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Thirdgendriver's Avatar
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From: Iowa
Car: 85` Camaro
Engine: 355 .3 bored, cammed
Transmission: 350 turbo trans
Re: 2.5 Fuel Injected swap to Pontiac 350? Need advice

Which would be less work, a chevy 350 or pontiac 350?
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Old Mar 21, 2014 | 02:36 PM
  #5  
midias's Avatar
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From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: 2.5 Fuel Injected swap to Pontiac 350? Need advice

Originally Posted by Thirdgendriver
Which would be less work, a chevy 350 or pontiac 350?
CHEVY 350!!!!!!!!!!!

Also read this
https://www.thirdgen.org/forums/engi...swap-read.html
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Old Mar 21, 2014 | 02:37 PM
  #6  
Thirdgendriver's Avatar
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From: Iowa
Car: 85` Camaro
Engine: 355 .3 bored, cammed
Transmission: 350 turbo trans
Re: 2.5 Fuel Injected swap to Pontiac 350? Need advice

I read most of that thread and I didn't see one that would help exactly.
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Old Mar 21, 2014 | 02:42 PM
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From: Iowa
Car: 85` Camaro
Engine: 355 .3 bored, cammed
Transmission: 350 turbo trans
Re: 2.5 Fuel Injected swap to Pontiac 350? Need advice

Ok, so either I get a Pontiac 350 from a 81 Trans Am from my neighbor, or go buy a Chevy 350 on Craigslist about double the cost or so.
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Old Mar 21, 2014 | 02:42 PM
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midias's Avatar
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From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: 2.5 Fuel Injected swap to Pontiac 350? Need advice

Originally Posted by Thirdgendriver
I read most of that thread and I didn't see one that would help exactly.
It would help us a lot of you told us your final plans and patictlars.

Desired HP?
Carb or EFI?
Budget?
LSx or SBC?
Transmission?

The short list of things you'll need is the motor, trans, computer & harness, v8 front coil springs & sway bar, v8 radiator. Your best bet is to find a good running wrecked/rusty thirdgen with the motor & trans you want.
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Old Mar 21, 2014 | 02:44 PM
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midias's Avatar
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From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: 2.5 Fuel Injected swap to Pontiac 350? Need advice

Originally Posted by Thirdgendriver
Ok, so either I get a Pontiac 350 from a 81 Trans Am from my neighbor, or go buy a Chevy 350 on Craigslist about double the cost or so.
What skills do you have? Can you weld? What equipment do you have? does the price difference outweigh the cost of adapters needed?

https://www.thirdgen.org/forums/engi...-v8-swaps.html
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Old Mar 21, 2014 | 02:48 PM
  #10  
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From: Iowa
Car: 85` Camaro
Engine: 355 .3 bored, cammed
Transmission: 350 turbo trans
Re: 2.5 Fuel Injected swap to Pontiac 350? Need advice

I was going to put a carbuered 350 in place of the fuel injected four cylinder. I may just keep it stock. I have a great 4 speed Saginaw transmission from the four cylinder. I have a shop I can work on it at and around 500 dollars. I was thinking about using it for some other stuff though, paint, etc.
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