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Discussion Starter · #1 ·
Anyone with knowledge care to chime in on this?

I've been told the only things to look out for are:

- Oil filler adapter nipple (Jeep uses 45* angle adapter).
- Plug the hole that the oil pressure sending unit plugs into.
- Maybe the oil dipstick. Unsure if it will end up going in pan or block.

Any pointers and/or guidance is more than appreciated!
 

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oil pickup is also different on the Jeep vs. an LX. oil dipstick still goes in the same way but for some reason think its on the opposite side of the block...but I could be thinking of 5.7 vs. 6.1
 

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Discussion Starter · #5 ·
Yes slott.

Jim is correct! What a memory on that guy.

So oil dipstick mayne on other side.
 

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Discussion Starter · #6 ·
I hate touchscreen phones.
 

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Pay close attention to number 2 and 6.

The car dipstick goes straight into the pan and the block hole is plugged. On the Jeep, it goes into the block and there is no hole in the pan. This is seen in the pic above labeled 6.

The other thing to change is the long stud on the main caps. On the car, it will be on the first cap and needs to be moved to the 3rd cap on the same side.

Thats it.
 

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Discussion Starter · #8 ·
Much appreciated Andy.

Just to clarify, the first main cap on the engine coming from the LX needs to have the long stud removed and relocated to the 3rd cap, on the same side, when moved into the Jeep...?

Dip stick will be relocated easily by keep the oil pan the the respective vehicles and unplugging the block's hole on the 426 when it goes into the Jeep, and just using the dipstick in the LXs' oil pan's hole. Yes?

This may be a stupid question, but where's the oil sender unit if it's sensor location is plugged on the 426 block when installed in the Jeep?

Also, anything on the oil filter adapter? Was told the Jeep's is a 45 degree angle adapter which will need to be removed from the old block and put on the new one...or something like that.
 

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Oil pressure sender should be the same spot on both blocks. You are correct on the long stud. The oil pan from the LX cannot be used on the Jeep. Yes, unplug the hole on the 426 and use the dipstick from your stock engine. Oil filter adapter needs to be brought over too.
 

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Discussion Starter · #10 ·
Cool, thanks man. It's these little details that turn into a lot of head scratching later.
 

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Bumping this up, have to convert my shortblock from LX to Jeep setup. Does anyone know the following:

-Part number for the plug in the front of the block, passenger side, near the oil filter/oil pump passages (#2 in pic)

-Part number for the coolant plugs on each side of the block (#8 in pic)

-Can someone snap a pic of the side of the block near the oil filter flange; just above the oil filter flange are two large threaded ports. Pic earlier in this thread from Andy states one is plugged, the other gets a sensor. Anyone know what sensor, and which goes where (top or bottom gets sensor)? And what the part number is the for the plug in this area? (#9 in the pic)

-Can I remove the two main nuts/studs, move the oil pump pickup stud to the 3rd main, and retorque without screwing with the bearing tolerances? What is the torque procedure for the main and side studs?
 

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Bumping this up, have to convert my shortblock from LX to Jeep setup. Does anyone know the following:

-Part number for the plug in the front of the block, passenger side, near the oil filter/oil pump passages (#2 in pic)

-Part number for the coolant plugs on each side of the block (#8 in pic)

-Can someone snap a pic of the side of the block near the oil filter flange; just above the oil filter flange are two large threaded ports. Pic earlier in this thread from Andy states one is plugged, the other gets a sensor. Anyone know what sensor, and which goes where (top or bottom gets sensor)? And what the part number is the for the plug in this area? (#9 in the pic)

-Can I remove the two main nuts/studs, move the oil pump pickup stud to the 3rd main, and retorque without screwing with the bearing tolerances? What is the torque procedure for the main and side studs?
All the plugs are either 3/8", 1/4", or 1/8" NPT
Usually the top hole is plugged by the oil filter and the oil pressure sensor goes in the bottom. Really doesn't matter though.
 

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All the plugs are either 3/8", 1/4", or 1/8" NPT
Usually the top hole is plugged by the oil filter and the oil pressure sensor goes in the bottom. Really doesn't matter though.
I believe on the jeep, my oil pressure sensor is in the oil filter 45* bracket, and is 1/8" NPT. I believe I just need to plug both of those ports on the Jeep.
 

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Cool thx, any thoughts on moving that main stud?
Not much besides making sure you re-torque it properly.

I believe on the jeep, my oil pressure sensor is in the oil filter 45* bracket, and is 1/8" NPT. I believe I just need to plug both of those ports on the Jeep.
Just thinking about that, yep, just plug both holes then. The LX's have the sensor in one of those holes.
 

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Perfect, i tried finding the torque sequence, I know the mains are 105 and 25 for the sides, but wasnt sure in what order, I assume mains first, sides after. And thats with ARP lube.
 

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Got it, i have the manual at home, ARP says 100ft/lbs on the mains and 25 on the sides, in 3 equal steps. Ill follow the haynes for torque sequence. Should be good to go!
 

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