1990 buick to a 94 beretta 3.1 swap

[leclouxa]

ok so i have a 90 buick regal custom (with wood grain trim) lol but the motor in this car is strong. so i have baught a 94 berette from a buddy for 100 bucks car has barely ne rust and only has 90xxx miles on it so pretty nice and i wanna swap the motor from the buick to the bretta cause the berettas motor blew a seal and ran tight. do u see ne probles i would have. i talked to the jy and they said it wont work but auto zone said it will. the only thing that i see may be a problem is the the buick has a 4sp and bretta has the 3 but i dont need the trany so ne help would be great

[bszopi]

94 Beretta has a 4-spd, if it had the v6. 4-cyl I can't say for sure.

BUT, this issue you will have is first, its illegal to put an older motor into a newer vehicle. And second, the ECM in the Beretta will be looking for a lot more than the 90 engine will have, as far as sensors go. So you'd be looking into an ECM swap as well as the engine. Then there would be the potential issues of motor mounts, etc... You never did say what either of the existing engines are, so its hard to judge.

[IsaacHayes]

Not worth it. If the beretta is a v6, find a 3100 or 3400 with low miles and swap into the beretta. The 94 beretta motor is different in many ways than the 90 3.1 and the ECM will be looking for many sensors the old 3.1 won't have and besides the old 3.1 has about 20 hp less than the 94 3100.