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2.8L V6 to 4.3L Vortec V6

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Old Feb 21, 2011 | 09:54 PM
  #1  
berlinettaman's Avatar
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From: Mobile, AL
Car: 1983 Camaro Berlinetta
Engine: 2.8L Carb V6
Transmission: 5-Speed Manual
Axle/Gears: Stock
2.8L V6 to 4.3L Vortec V6

I have an '83 Camaro Berlinetta with the 2.8L V6. I'd like a little more out of the car and am wondering if a 4.3L Vortec V6 will squeeze into the engine compartment/fit the stock transmission (5-speed manual). I am hoping to drop the Vortec in with the stock transmission. Please help, need advice!
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Old Feb 21, 2011 | 10:41 PM
  #2  
RubberDucky's Avatar
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From: Florida
Car: 1989 Camaro RS
Engine: LH6
Transmission: T56
Axle/Gears: 3.42 Auburn Posi
Re: 2.8L V6 to 4.3L Vortec V6

Originally Posted by berlinettaman
I have an '83 Camaro Berlinetta with the 2.8L V6. I'd like a little more out of the car and am wondering if a 4.3L Vortec V6 will squeeze into the engine compartment/fit the stock transmission (5-speed manual). I am hoping to drop the Vortec in with the stock transmission. Please help, need advice!
The 4.3 won't bolt up to the stock tranny. It uses the same bolt pattern as a V8 I believe.
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Old Feb 22, 2011 | 07:12 AM
  #3  
3rdgenmaro's Avatar
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From: Lincolnton, NC
Car: 88 IROC
Engine: 97 5.7 Vortec LT4 hotcam
Transmission: 700 r4
Axle/Gears: 3.73
Re: 2.8L V6 to 4.3L Vortec V6

yep, the 4.3 has the same bolt pattern as the 350. It wont bolt to your existing transmission.

As far as fitting, it will easily fit. It is smaller then a sbc and they came in these cars. Big Blocks will even fit in these cars.
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Old Feb 22, 2011 | 02:03 PM
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five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You will have to custom fabricate mounts for a 4.3 V6. Although it is basically a 5.7 with two cylinders missing, they moved the engine mounts relative to the bellhousing on the 4.3.
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