Builds The LF40 Wheeler Build - Twin Turbo & 8 Speed Auto FJ40 (3 Viewers)

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Hey DJ. Good to hear you are moving forward. Here I shot of my progress.

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Lf4 time. Current dimensions I have taken are around 24" long, 30" tall, about 30" wide. 8l90 is about 23" long.

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Compared to a 8hp80 and R2.8

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Very similar dimensions, the LF is about 4" wider.
 
Yup. I’m sure it’ll clean up nice. I enjoy that part of a swap.

Lots of stuff to get rid of, but I'll let the guy who does the harness deal with all of that. He knows a lot more than me about getting these standalone.
 
Oops

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Harness time. Pretty easy to pull, a few connectors were a bit of a pain, but it all came off in about two hours.

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In order to get the trans plug out, had to pull one intake tube. The intercooler on that side is MINT.

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Got it hoisted up on the gantry.

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Started digging around the block a bit. This engine came from a front end wreck, but was running and driving still. Found some not so great, but very lucky carnage.

The alternator bracket tab cracked and moved right before the mating surface of the block. It was running before this, so I'm assuming that it is not currently leaking, and I'm going to close my eyes to this tab. It's only moved in about a 1/32, but it's probably not fixable. Would love to hear what you guys think.

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Same with the timing cover.

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A small crack in the cover housing, I'm a bit more worried about this one if it keeps expanding. I reallyyyyy don't want to pull everything to replace the cover, though. What would you guys do? @Godfather90? Would love some advice.

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From wgat ive seen Gm v6 engines are notorious for leaks. Especially timing chain leaks. I would 120% reseal that timing chain cover and replace the cover at the same time. Replace every single seal and gasket on that motor. If something takes fipg, redo it with fresh. If something takes a gasket or seal. Replace it with oem or mahle. Does it have a power steering pump? Reseal that too. I would also research any problem child internally of that engine so you check it while it's on the stand. If there are any issues at all with head gaskets I would replace them. Are there any oil consumption issues with that motor? Seems like every gm v6 I work on with 60k plus is leaking oil or something. They are definitely different than LS motors. As far as that bracket goes I think it can be fixed from what I see if a replacement is not easy to get.
 
From wgat ive seen Gm v6 engines are notorious for leaks. Especially timing chain leaks. I would 120% reseal that timing chain cover and replace the cover at the same time. Replace every single seal and gasket on that motor. If something takes fipg, redo it with fresh. If something takes a gasket or seal. Replace it with oem or mahle. Does it have a power steering pump? Reseal that too. I would also research any problem child internally of that engine so you check it while it's on the stand. If there are any issues at all with head gaskets I would replace them. Are there any oil consumption issues with that motor? Seems like every gm v6 I work on with 60k plus is leaking oil or something. They are definitely different than LS motors. As far as that bracket goes I think it can be fixed from what I see if a replacement is not easy to get.

Good to know. This engine ran for a bit after the crash, so I know it doesn't leak, so I may leave the cover for a bit, but it's definitely on my list to get done.
 
Some more LF4 and 8l90 dimensions, as reference for you guys.

Bottom of block witdth with accessories, about 19"

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Bottom of pan with oil filter housing, about 13"

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Total height, about 30"

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Total width, about 27"

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Total length, about 24"

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About 17.5" at the tallest for the 8l90


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About 17" wide

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About 12" wide after the bellhousing.

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About 23" long

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A quick comparison to a R2.8 Cummins, H55, and split case that I stuck together a few days ago.

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Very similar in length, it should be quite comparable for fitment in the end.

More carnage from the passenger side wreck the LF experienced. Started digging around the engine and ordered a bunch of parts today, so one step closer to running. Engine harness has been shipped to Mitch at Swap Time (swaptimeusa.com) awesome guy to work with that really knows his stuff with the newer GM engines.

Unfortunately, the good tig welder decided to die a little while ago, otherwise I would be trying my hand at welding cast aluminum.

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The 8l90 and LF4 are now mated, and should be ready to start dropping in after I clean off the old motor mounts. Still an early July estimated date for the Atlas.
 

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