I went to the local junkyard looking for a 3.1 block, but no place within 500 miles has any. I did however get lucky and find a 2.8 w/ the injection system and everything. My question is, what would I do to make this at least a 3.1? I'm trying to rebuild a tough little 6 while I'm driving mine around. And would I use the MPFI off of my 3.1 right now, or the 2.8 if I get it? What really IS the difference between the 3.1 and 2.8 other than 5HP and about 20ft/lbs torque?

------------------
See pics @ Billy's Firebird
92 Bird 3.1L Auto
Best $750 I ever spent....
DRIVE IT LIKE YOU STOLE IT!
Kills:
93 Mustang LX (Before Mods)
98 or 99 Dodge Stratus (tough one, edged out at 40)
92 Camaro RS 305 TPI
Close Calls
94 Grand Am 3.1 V6
92 Cavalier 3.1 V6
01 Porsche 911 Turbo (Had em till first gear)
Mods-Jet Stage 2 Performance Chip, Accel Cap/Rotor, Accel 8.8 MM Wires, Accell Coil, AC Delco Rapidfire Plugs, Dynomax Catback, K&N
AIM name OVRCLCK350

 

2.8 and 3.1 use the exact same block, and probably EFI setup, IIRC. Difference is the crankshaft, connecting rods, and perhaps the pistons. As far as I know, that's all that is different. Might have to change the computer, but maybe not. Best of luck.

 

I hope you have not bought it yet, because your not getting the right answer.
You want a 3.4 long block set up and do the swap, like I did.
Keep phoning until you find one.
There has to be one so much closer. Go to a local insurance place and ask thenm for recent wreck car lot suggestions.
I paid $800 for my 3.4 and this car now pulls like a freight train!

------------------
Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA

 

Hey Ked, that'd be nice, but I'm looking for a block only. I want to redo the cam, crank, pistons and everything. And you forget, I'm in deep East Texas, miles away from any decent junkyard. I might drive to Dallas and get a 3.4 if i can find one cheap enough tho.