2007 gmc denali ls1 swap

[josh098]

My 2007 yukon has a bad motor and I have a firebird ls1 sitting around so I was thinking about swapping the ls1 in the yukon what kind of problem am I looking at here

 

[donjetman]

Your Yukon came with a Gen4 LS engine
The LS1 is a Gen3
wire harness and ecm are different
but somebody probably makes a conversion kit

 

[j91z28d1]

Your Yukon came with a Gen4 LS engine
The LS1 is a Gen3
wire harness and ecm are different
but somebody probably makes a conversion kit

I believe langenfelter makes a crank trigger tooth converter. not sure about cam.

you'd need some tuning of the stock truck. ecm to match the engine as well.

 

[strutaeng]

You can use a Gen IV engine in a Gen III with the Lingenfelter 58X to 24X reluctor adapter, but it doesn't work the other way around.

You'd have to tear down the bottom end and swap the reluctor on the crank to a 58X type, then install a 4X cam sprocket and LS2 front timing cover with the cam sensor, and IDK where you would mount your knock sensors because the blocks have them in different spots.

Just get yourself any Gen IV engine. It'd be easier to swap. Bore out a 5.3 to 5.7 if you want the extra cubes, or do a 6.0 or 6.2. IDK

 

[Marky Dissod]

Just get yourself any Gen IV V8. It'd be easier to swap. Bore out a 5.3L to 5.7L if you want the extra cubes, or do a 6.0L or 6.2L.

Best bang for the buck is likely a 6.0L L76 / LY6 / L96 / LC8, then put 243/799 heads on it.
(I'd use 706-862 heads on it, but I want more low-RpM torque and am willing to sacrifice power over 4600RpM.)

 

[j91z28d1]

You can use a Gen IV engine in a Gen III with the Lingenfelter 58X to 24X reluctor adapter, but it doesn't work the other way around.

You'd have to tear down the bottom end and swap the reluctor on the crank to a 58X type, then install a 4X cam sprocket and LS2 front timing cover with the cam sensor, and IDK where you would mount your knock sensors because the blocks have them in different spots.

Just get yourself any Gen IV engine. It'd be easier to swap. Bore out a 5.3 to 5.7 if you want the extra cubes, or do a 6.0 or 6.2. IDK

I didn't realize it only went one way. I guess that makes sense most people putting Gen 4 engines into Gen 3 ecm cars.


so yeah, nothing easy about swap really. what's wrong with the motor it now? lifter. issues?