cabech984

iTrader: (11)

Hi all,

I have a pretty clean 1990 Trans Am that Ive been considering doing the swap too over the winter. I have plenty of experience with LSx cars and doing swaps. The car actually has a 1987 3.8L Intercooled and Turbocharged v6 from the Buick Grand National. Me and my brother did that swap last summer. Im just looking for something thatll make more power, safer and all that.

The car has a TH400 and a Fuddle 3200 stall converter(stalled for the v6) and a full catback etc. Id figure with the LSx swap mounts, everything should bolt up to the TH400. What kind of stuff would I need to make this swap possible?

What kind of;
Accessory drive
Oil pan
Intake
Headers

Any help would be sweet. I am thinking that the car will get anything with the 4" bore for starters. I have a good head start on the car so the money ill be spending will be on an engine and getting it to work in the existing setup!

jomomma

iTrader: (39)

im sure somebody would take that 3.8. that would help towards your new setup

the_merv

iTrader: (88)

There is actually a Kit made now for a complete LS1 Swap into a 3rd Gen F-body.. I forgot who makes it, but I've seen it several times.

nhedrick007

Whats up.
I have 92 that I just did an ls3 conversion on.
Any questions I can answere I will.
Also check out www.thirdgen.org
message boards...
then click on the ltx/lsx swap section. EVERYTHING>>>> ABSOLUTELY EVERYTHING you'd ever need or want to know about doing the swap.
Good luck.
You can find some videos of my swap I have about 4 or 5 on you tube. Do a search for 92 firebird ls3

V8Rumble

iTrader: (9)

Best advice I can give you - start here, & make FREQUENT use of the search button on both this board, & that one!

Good luck.

cabech984

iTrader: (11)

Thanks guys, Ill be reading more! I wasnt even thinking about TGO, I went there often during my Turbo 3.8 swap lol. These 3.8L's aint cheap either, Ive seen longblocks go for $2500 all day! We shall see what I fetch for mine, I got it for such a good deal and did alot of the rebuilding work myself, I cant lose money lol

SheldonZ28

iTrader: (4)

Do it!

I just swapped a 5.3L into my iroc-z cause im poor and cant afford the real deal.

I know to swap the LSx infront of a TH400 you need a TCI Flat flex plate, and a pilot spacer.

If your interested in the pilot spacer, ive got on here that i didnt use.

Sheldon

Blownz28man

iTrader: (2)

I just got done swapping a 2002 ls1 w/4l60e into my 92 Z28. Pretty easy and straight forward. I used a spohn k-member and mounts. Fabbed up my own trans cross member. Installed a 3500 stall, TSP Torquer V2, Titanium retainers and dbbl valve springs. Car is mean! Also loud with my Mufflex 4" exaust. I say do it!

cabech984

iTrader: (11)

I like the Spohn Torque Arm and Crossmember for my TH400. Are the spark plugs easier to access lol? How much were you guys spending to get the project done? All ill be needing is an Engine and pretty much everything that bolts up to it(except for Th400)

AronZ28

iTrader: (2)

If you happen to come across an entire wrecked car with the motor in it, buy the whole car(assuming its a good deal). It'll have all those little parts that you didn't think about still on it, so you won't have to track down as many parts.