The engine should bolt in but I'm sure some electrical stuff would be different along with the computer. The one in that Riviera is probably a pre- series 1 where as your lesabre has a series 1.
how a 1989 buick riveria 3800 fit into a 1995 buick lesabre with a bad 3800 engine? because we found the lesabre at a autoauction for only $750 and notised that it was a 3800 engine and we have an old one
Hey, we are taking the 3800 non-supercharged out of my 99 Regal. We have the components detached but can't seem to get it loose. We think we might be missing a bolt somewhere. Our best guess is it is an 18mm bolt that connects the engine to the transmission on the bottom behind the engine. We can't even figure out how get at it to see if a bolt is even there though. Any thoughts or suggestions? Thanks
@jerdmo Your probably missing the "backwards bolt" on the rear of the engine, it goes in from the opposite side of the others. Its also referred to as the "bastard bolt" because its such a pain to get to. Its near impossible to see. I had to use several feet of extensions just under the rear exhaust manifold to get it.
hey did u have to drain the transmission oil out or u just left in the torque converter
cause i am in the process of taking my engine out of my grandprix with the same engine u have this is my first time and i dont want to mess up and something went wrong so when u can reply back to me thank be waiting on message laters
@RCSMAXX Nope, just take the 3 bolts out that hold the flywheel to the torque converter. Afterwards I drained the tranny out and took the TC off and drained it. the fluid looked pretty nasty in this car.
Love the Kan of Kroil sitting on the edge there... I just did this over the weekend myself.. Just seeing what others are doing.. If I had a lift.. i would have just did the subframe drop.
hey being ur pretty familiar with these i just took my 3800 outta my 97 regal and i bought a used 3800 but its came out of a 02 monte carlo now im runnin in tho the problem were plugs are not plugin in and some are lookin different some one told me i would have to change the manifolds someone else told me i the chevy motor is to new is this true
@Prince0Charles Did you swap the engine wiring harness from the old engine to the new one? The engines should be similar enough where they would swap.
just took mine out you have to remove the studs on the ac compressor too! mine spun a rod bearing from a bad uim mine is a n/a 3800II would I need to plastigage the rod?
somebody plz tellme how long this should take to do. im currently gettin my 95 Rivi done whole engine swap supercharged? they have had it two weeks should i be compensated?
I did the whole job myself. I spanned it out over 2 weeks, and a lot of that spent prepping the new engine, cleaning things, and changing trans fluid. If I had everything on hand and the help, Could have easily done it in a weekend.
Thats some nasty oil- looks like the oil i got out of that crappy briggs from my wifes step bro - he left it outside- rings were bad- the whole engine was filled with water and 'butterscotch oil " - glad i only paid $10 for it....
That motor would make a great boat anchor or weight for the winter.
no it looks good. but what i did is because i dont use mine due to a poor block casting problem with my motor, i put some gasket maker on it and sealed it up really good, but good luck with the swap and thats some really messed up oil
I may end up doing that if the yard can't find me an engine that doesn't have the same problem as mine! They have gotten 2 engines already, both with problems.
The engine should bolt in but I'm sure some electrical stuff would be different along with the computer. The one in that Riviera is probably a pre- series 1 where as your lesabre has a series 1.
moldymac 2 months ago
how a 1989 buick riveria 3800 fit into a 1995 buick lesabre with a bad 3800 engine? because we found the lesabre at a autoauction for only $750 and notised that it was a 3800 engine and we have an old one
perry244 2 months ago
the motor mount got to come off to change the belts? wow another great design gm!!
lawnside82 6 months ago
Hey, we are taking the 3800 non-supercharged out of my 99 Regal. We have the components detached but can't seem to get it loose. We think we might be missing a bolt somewhere. Our best guess is it is an 18mm bolt that connects the engine to the transmission on the bottom behind the engine. We can't even figure out how get at it to see if a bolt is even there though. Any thoughts or suggestions? Thanks
jerdmo 7 months ago
@jerdmo Your probably missing the "backwards bolt" on the rear of the engine, it goes in from the opposite side of the others. Its also referred to as the "bastard bolt" because its such a pain to get to. Its near impossible to see. I had to use several feet of extensions just under the rear exhaust manifold to get it.
moldymac 7 months ago
hey did u have to drain the transmission oil out or u just left in the torque converter
cause i am in the process of taking my engine out of my grandprix with the same engine u have this is my first time and i dont want to mess up and something went wrong so when u can reply back to me thank be waiting on message laters
RCSMAXX 8 months ago
@RCSMAXX Nope, just take the 3 bolts out that hold the flywheel to the torque converter. Afterwards I drained the tranny out and took the TC off and drained it. the fluid looked pretty nasty in this car.
moldymac 8 months ago
Love the Kan of Kroil sitting on the edge there... I just did this over the weekend myself.. Just seeing what others are doing.. If I had a lift.. i would have just did the subframe drop.
fanelli18 8 months ago
hey being ur pretty familiar with these i just took my 3800 outta my 97 regal and i bought a used 3800 but its came out of a 02 monte carlo now im runnin in tho the problem were plugs are not plugin in and some are lookin different some one told me i would have to change the manifolds someone else told me i the chevy motor is to new is this true
Prince0Charles 1 year ago
@Prince0Charles Did you swap the engine wiring harness from the old engine to the new one? The engines should be similar enough where they would swap.
moldymac 1 year ago
@Prince0Charles yep i neva took it out the car
Prince0Charles 1 year ago
american quality
GottfriedvonCramm 1 year ago
just took mine out you have to remove the studs on the ac compressor too! mine spun a rod bearing from a bad uim mine is a n/a 3800II would I need to plastigage the rod?
will79601 2 years ago
somebody plz tellme how long this should take to do. im currently gettin my 95 Rivi done whole engine swap supercharged? they have had it two weeks should i be compensated?
TheSupaman313 2 years ago
I did the whole job myself. I spanned it out over 2 weeks, and a lot of that spent prepping the new engine, cleaning things, and changing trans fluid. If I had everything on hand and the help, Could have easily done it in a weekend.
moldymac 2 years ago
You should go ahead and change the intake gaskets on the used motor you find. I think they have an updated version of the gaskets.
mjmcomputers 2 years ago
Definitely, wont let this happen again
moldymac 2 years ago
thats GM for ya
casebutler 2 years ago
Comment removed
casebutler 2 years ago
Thats some nasty oil- looks like the oil i got out of that crappy briggs from my wifes step bro - he left it outside- rings were bad- the whole engine was filled with water and 'butterscotch oil " - glad i only paid $10 for it....
That motor would make a great boat anchor or weight for the winter.
dangeroustoys56 2 years ago 2
i just replaced the block hearer on my diesel, it actually leaks out of the 3 pronged plug in. dont but "kats" heaters. they suck
SergeantTwiggs 2 years ago
I don't even really need the heater on this, never gets cold enough here to need one. Looks like mine isn't leaking yet
moldymac 2 years ago
no it looks good. but what i did is because i dont use mine due to a poor block casting problem with my motor, i put some gasket maker on it and sealed it up really good, but good luck with the swap and thats some really messed up oil
SergeantTwiggs 2 years ago
if you cant find a engine you guys might have to rebuild it lol
30GB 2 years ago
I may end up doing that if the yard can't find me an engine that doesn't have the same problem as mine! They have gotten 2 engines already, both with problems.
moldymac 2 years ago