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Engine selection

Old 07-25-2012, 12:42 PM
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Car: 1991 camaro
Engine: 3.1L V6 dynomax exhaust
Transmission: 700r4 auto
Axle/Gears: 89 iroc-z 9bolt disc+posi 3.27
Engine selection

Currently have a 3.1 L engine running strong with 312k miles on it. Getting about 22-24 mpg it's a daily driver. I have 3.42 gears auto. I had 3.08 gears with drum and I got 27-28. The 3.42 gears really killed my gas mileage I feel like the 3.1 doesnt have enough power.

Should I just rebuild my 3.1

Buy a 3.4 v6 and rebuild it so it's ready to swap in?
(What's the best year)
Buy a 3.8 v6 and rebuild it so it's ready to swap in?
(best year)


Just want to plan ahead so I'm ready.
Old 07-25-2012, 02:22 PM
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Car: 1991 camaro
Engine: 3.1L V6 dynomax exhaust
Transmission: 700r4 auto
Axle/Gears: 89 iroc-z 9bolt disc+posi 3.27
Re: Engine selection

Bump
Old 07-25-2012, 02:42 PM
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Car: 1984 Firebird (89 Formula Clone)
Engine: 357
Transmission: m29 T56
Axle/Gears: 3.27 9 bolt Borg Warner.
Re: Engine selection

I would 3800 swap it, but wiring would be a pain. Or just jump over to 350 world.
Old 07-26-2012, 11:37 AM
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Car: 1991 camaro
Engine: 3.1L V6 dynomax exhaust
Transmission: 700r4 auto
Axle/Gears: 89 iroc-z 9bolt disc+posi 3.27
Re: Engine selection

I have to change way too much if I go from a v6 to the 350 l98. And it's a daily driver so I want at least 26 on the freeway.

I'm thinking about changing my 3.42 gears to 3.23 or lower?
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