TJ LS Swap Engine Angle?

[lt1yj]

Doing an LS swap in an LJ for a buddy and have the engine set in the frame and need some feedback before I burn it in.

I currently have the engine 3/4" to the passenger side. I've done this on previous builds and it works well with a drivers drop front axle. I currently have a flat skid with 5/8" clearance to the tub and 3/4" clearance to the skid. This Jeep came to me with a 1.5" body lift already.

I'm pretty comfortable with that so far but flame away if you feel different.

The part I really want feedback on is the angle of the engine relative to the frame. I currently have it set at 4 degrees tipped up in the front. The Hemi and the LT1 I put in my personal Jeeps are at 2 degrees and I haven't had any issues. I've gotten feedback that anything over 1 degree is too much to anything under 10 degrees is ok. I personally feel the 4 degrees is perfect. It puts the engine oil pan level with the bottom of the frame rail, just don't know if the LS will have oiling issues on steep climbs or steep downhills.

Anyone running 4-5 degrees on hardcore rock crawling trails have any feedback? The first run on this Jeep is going to be the Rubicon and Fordyce, then out to Sand Hollow. I'd rather not have a smoke show if it can be avoided.

 

[gt1guy]

My pile doesn't run yet, so take that for what it's worth. It's also a JKU, so apparently I'm a ***. I did put a LS/6l90 in it though.

I paid zero attention to the angle of the engine when I built the engine/trans mounts. I set it to get the best angles on the driveshafts. It ended up being 4*-5* up in front and the bottom of the factory engine/trans pans were horizontal. Which is probably pretty close to how the factory had it with the mighty V6.

Worrying about pointing up or down is a double edge sword. The answer to that is called Accusump.

The white smoke isn't the engine starving for oil, it's the valve covers filling with oil and it's being sucked into the intake manifold through the PCV system. There are fixes for that.

 

[lt1yj]

My pile doesn't run yet, so take that for what it's worth. It's also a JKU, so apparently I'm a ***. I did put a LS/6l90 in it though.

I paid zero attention to the angle of the engine when I built the engine/trans mounts. I set it to get the best angles on the driveshafts. It ended up being 4*-5* up in front and the bottom of the factory engine/trans pans were horizontal. Which is probably pretty close to how the factory had it with the mighty V6.

Worrying about pointing up or down is a double edge sword. The answer to that is called Accusump.

The white smoke isn't the engine starving for oil, it's the valve covers filling with oil and it's being sucked into the intake manifold through the PCV system. There are fixes for that.

The trans pan is level with the frame, the LS has the truck pan on it now which is angled up in the sump area so isn't a good reference. He's getting the Fbody pan which is level from memory and close to the same level as the trans pan.

What are the fixes for the oil pooling in the top of the head?

We'll see if he has any low oil pressure issues and look at the Accusump then.

 

[gt1guy]

The trans pan is level with the frame, the LS has the truck pan on it now which is angled up in the sump area so isn't a good reference. He's getting the Fbody pan which is level from memory and close to the same level as the trans pan.

What are the fixes for the oil pooling in the top of the head?

We'll see if he has any low oil pressure issues and look at the Accusump then.

Reroute the breather hoses with larger hose and do the 3 sides and down to a catch can. Basically remove the PCV system and don't let it suck oil into the intake. I believe there's a thread on here about it.

 

[gt1guy]

Found it.

LS Engine Venting / Positive Crankcase Ventilation / Fuel Air Trap System

So to start this off: Fuel Air Trap System or FATS is known within our sport and fairly well accepted by all as a way to prevent fluid from leaking from an object during rollover. The simple way I have read is four sides and down. Theory is plumb from the top then around the four sides somewhat...

irate4x4.com

 

[lt1yj]

Found it.

LS Engine Venting / Positive Crankcase Ventilation / Fuel Air Trap System

So to start this off: Fuel Air Trap System or FATS is known within our sport and fairly well accepted by all as a way to prevent fluid from leaking from an object during rollover. The simple way I have read is four sides and down. Theory is plumb from the top then around the four sides somewhat...

irate4x4.com

Thx. I’ll do some reading

 

[Rockwood]

My **** is at about 4-5* as well. Zero issues losing oil pressure, but it’s not like I’ve had it standing on the spare tire. I have my stock gauges running, so it chimes if there’s a loss in oil pressure.