Yeah, another LS swap

[reddingcruiser]

What do you usually use for a fuel tank on your other builds?

Depends. Typically I use a modified GM in - tank pump in a stock FJ40 gas tank. The gas tank mods require some invasive surgery so I use new steel tanks since have no intention of leaving this earth before I have to. I've worked on used tanks but it's not worth the risk.
This picture is an early prototype from years ago, but you'll get the general idea. There are aftermarket pumps that do the same thing. Either way, the trick is getting the pump between the tank baffles, in the deepest part of the tank and between the seat rails.

 

[newmexicokid]

Can you tell me how you did your transfer case shifter?

 

[reddingcruiser]

AA twin sticks. I'm a big fan of them. You can get as fancy as you want.

 

[reddingcruiser]

Well, we wrapped up this build last Monday, dealt with minor issues on Tuesday and left for the Rubicon on Wednesday (no pressure ). We were under a deadline to make our departure date so not a lot of final build pics were taken during the week leading up to our trip. However, the 40 performed great! No significant issues, just a little bit of a learning curve by the owner getting used to the LS throttle response and extra horsepower. Next on the list of improvements for this one is an Orion t-case.

What really matters is we that had a fantastic trip with just the right number of folks at Rubicon Springs. I'm proud to say I've had my fingers on three of the rigs in the first picture below. For the two 40's in the middle, this was the first Rubicon trip for the rigs and their drivers.

For those unfamiliar with California during fire season (we used to call it summer), the smoke you see in the picture below is from wildfires burning across northern California. Most of this smoke is from fires burning in the central valley, northern Bay area and coastal range, making it's way east to the Sierra's and up to 7,000 feet (and more). This is normally one of the most majestic views from the Rubicon Trail.

 

[SipLife]

Just flipped through this thread as I am going through a similar swap on my 40 right now, nice and clean install. Could you share the details on your upper rad hose setup?

 

[reddingcruiser]

Just flipped through this thread as I am going through a similar swap on my 40 right now, nice and clean install. Could you share the details on your upper rad hose setup?

The hose sections are cut from a stock 2002 Chevy Silverado upper radiator hose. The aluminum section is a air bleed adapter/steam line connector from Jags That Run (may be a new name now) with a second of aluminum tube welded to the downstream.

 

[Dcon]

Great write up! Curious which radiator you use (19x26)? I need to stuff a bigger one in there. Will need to modify headlight buckets I guess on my '69. Thanks!

 

[Drake2]

The new LS sitting in it's new home.
View attachment 2339731View attachment 2339733

Can you share some info and pics on your LS mounts? Also, are there some specific dimensions that you have found to be ideal for placing the frame mounts? I will be running a mechanical fan setup as well but am a bit confused about the best way to determine actual mount placement on the frame. I would like to be as far forward as possible to allow for the longest rear drive shaft I can go with. It will already be short with the TH400/NP205 connected to an early 40 centered rear output axle assembly.