2.8 to 3.1
07-06-2005, 08:21 PM
#1
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Car: 92 RS
Engine: 305 Carb
Transmission: 700R4
2.8 to 3.1
i was wondering what all i would have to change from a 85' 2.8 to a 92' 3.1(wiring harness, ecm, or anything). or if it would just swap right in.
07-06-2005, 11:36 PM
#2
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Although this is an "engine swap", technically, those who frequent this forum don't tend to specialize in V6's.
At the risk that you've already posted there, I'll move this from "Swap" to "V6".
At the risk that you've already posted there, I'll move this from "Swap" to "V6".
07-06-2005, 11:41 PM
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Car: 13 Ram 1500/ 78 Formy
Engine: 5.7 / 7.4
Transmission: 6sp / TH350
Axle/Gears: 3.55 posi / 3.23
doh!!!!!! 
, also read KED85's article on the 2.8~3.4 swap boggie & pretty much substitute 3.1 everytime you read 3.4.
, also read KED85's article on the 2.8~3.4 swap boggie & pretty much substitute 3.1 everytime you read 3.4.
07-07-2005, 12:29 AM
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Car: 1988 Chevy Camaro Hardtop
Engine: Turbocharged/Intercooled 3.1
Transmission: World Class T5 5 Speed
You can build a 3.1L from a 2.8L block.
Remove 2.8 rotating assembly.
Insert 3.1 rotating assembly.
Enjoy the 'stroker' motor
Remove 2.8 rotating assembly.
Insert 3.1 rotating assembly.
Enjoy the 'stroker' motor
07-07-2005, 08:35 AM
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In the end, it comes down to this
Remove original vehicle engine
Put the two engines side by side.
Strip down, each engine or compare what is "the same".
Redress new donor engine
Slip back into original vehicle engine bay.
"Done".
Up grade injectors, by replacing into the "correct fitting" original design fuel rail.
In the end, the finished product should look exactly like what ya started with. Serious, that's the way to do this project.
No true engineering incvolved. Simple mix of the best parts reinsert new donor engine.
Remove original vehicle engine
Put the two engines side by side.
Strip down, each engine or compare what is "the same".
Redress new donor engine
Slip back into original vehicle engine bay.
"Done".
Up grade injectors, by replacing into the "correct fitting" original design fuel rail.
In the end, the finished product should look exactly like what ya started with. Serious, that's the way to do this project.
No true engineering incvolved. Simple mix of the best parts reinsert new donor engine.
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07-07-2005, 08:42 AM
#8
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Car: 1987 camaro & 70 mustang
Engine: 2.8l & built 351C
Transmission: borg warner T-5
i couldn't have said it better myself, but just word to the wise for everyone, if you are gonna use the 3.1 crank, use the 3.1 pistons too
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