OBS to LSx conversion

[RedHeartbeat]

yeah, its best to get the later model 60e to take full advantage of what the PCM does for transmission management. I'm sure you've seen the topic 100 times that the 60e doesn't last long behind the LS engines due to all the TQ they put out, so keep the TQ management in your tune to prolong the life of the trans. A lot of guys have stripped the 4x4 front drive assembly out and gone 2wd. If you get the right engine mount adapters it will be a straight drop in replacement plus wiring, fuel system upgrade and exhaust system modifications to marry up to your old system. The Dirty Dingo mounts seem to keep the transmission in the stock location, if there are others I'm sure someone will speak up.

[ccreddell]

Yes, you can keep the stock tranny-just need to use the spacer. That being said what Red said is true-the 4l60e is happier behind the LSX. Get a good rebuild and update some internals and it will live behind the LSX just fine-as will the 700r4 with the same treatment.

[dm79]

Ya I plan on keeping the newer 4l60e just want to make sure there no hassle to keeping it 4x4 as far as driveshafts mounting up and transfer case etc. All wiring and stuff is no big deal. Just never messed with a swap with 4x4

[southerniron]

I am grateful for everyone 's help !

[Pavetim]

I'm sort of confused here. Why are all you talking about buying $650 harnesses and grafting them. Why not just get a harness from the model vehicle the engine was out of, you can get one for probably $100. Am I missing something?

[RezinTexas]

I'm sort of confused here. Why are all you talking about buying $650 harnesses and grafting them. Why not just get a harness from the model vehicle the engine was out of, you can get one for probably $100. Am I missing something?

I was wondering this myself, anyone have an answer?

[kawikid]

Has anybody ever used the NBS cluster in the OBS? I would like to see if this has been done before I try to mold one in.

[LS1GMCTruck]

Good thread...

[haveTBIwantLS2]

Has anybody ever used the NBS cluster in the OBS? I would like to see if this has been done before I try to mold one in.

that would be a lot of a$$ pain.

would be awesome when it's done, tho

really cool.

This thread rocks, btw. Thanks to all

[RPM Graphics]

i have a question & have got 2 different answers. i have a 96 with the 5.7 vortec & i'm wanting to do an ls1 swap. my question is can i use the trans in my truck when i do the swap? one shop told me yes & another told me no.
i found a GREAT deal on an ls1 with 35,000 miles out of a trans-am that had a 6 speed. if i can use my trans i'm going to buy the motor tomorrow.