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Old 01-21-2014, 06:41 PM   #1 (permalink)
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Fj40 4bt re power

I have from many of you know a 1967 stretched and linked fj40 on tons and 42s.. I am currently doing a engine swap from the full roller studded Tune port 350 with AFR heads to a fresh rebuilt 3.9 liter cummins 4bt that was machined and assembled by douglas machine that i head studed with compound turboed and should be around 200 hp and 500 plus foot pounds of torque .More to come as I get done.
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Old 01-21-2014, 06:42 PM   #2 (permalink)
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Another pic
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Old 01-21-2014, 06:43 PM   #3 (permalink)
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The cruiser
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Old 01-21-2014, 06:53 PM   #4 (permalink)
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hell yeah!......

i am almost done getting parts in hand to brake ground on my fj-4bt build. i decided to go with an p-pump 4bt and 5spd allison from a chevy along with d60 and 14b.

cant wait to see how you get things fitting and running.
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Old 01-21-2014, 07:30 PM   #5 (permalink)
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hell yeah!......

i am almost done getting parts in hand to brake ground on my fj-4bt build. i decided to go with an p-pump 4bt and 5spd allison from a chevy along with d60 and 14b.

cant wait to see how you get things fitting and running.
I wanted a p pump 4bt but I found a core ve pump 4bt for cheap so I went with it. .
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Old 01-21-2014, 07:50 PM   #6 (permalink)
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I wanted a p pump 4bt but I found a core ve pump 4bt for cheap so I went with it. .
i was hard pressed for any 4bt, so i bought an hostess delivery truck. problem is i liked the truck so much upon picking it up that i ended up getting a 6bt to put back into the hostess truck. now i have a low buck camper/tow rig to go with the fj-4bt build.

how stretched is your fj?
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Old 01-21-2014, 07:59 PM   #7 (permalink)
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i was hard pressed for any 4bt, so i bought an hostess delivery truck. problem is i liked the truck so much upon picking it up that i ended up getting a 6bt to put back into the hostess truck. now i have a low buck camper/tow rig to go with the fj-4bt build.

how stretched is your fj?
Very nice. It's stretched the tub 18"
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Old 01-21-2014, 09:06 PM   #8 (permalink)
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What kind of wheeling do you plan on doing? Are you doing anything for slow throttle response? Some guys I talked to that have run them say the lag is a deal breaker for bumping ledges or "blip" throttle situations.

Tiny turbo for low rpm spool?
Love diesels but don't work for what I am building.
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Old 01-21-2014, 09:14 PM   #9 (permalink)
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What kind of wheeling do you plan on doing? Are you doing anything for slow throttle response? Some guys I talked to that have run them say the lag is a deal breaker for bumping ledges or "blip" throttle situations.

Tiny turbo for low rpm spool?
Love diesels but don't work for what I am building.
This is my mall crawler. In the spring I'm building a 4 seater ultra 4 style car.
And for throttle response I'm doing compound turbos HX30w over a HX35 or 40. I already have the HX30w for it.
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Old 01-23-2014, 09:01 PM   #10 (permalink)
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I like it! How wide is your back seat? Looks pretty wide.
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Old 01-24-2014, 05:39 PM   #11 (permalink)
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Old 01-24-2014, 06:04 PM   #12 (permalink)
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Nice
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Old 01-24-2014, 06:05 PM   #13 (permalink)
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Thanks. It's a aftermarket cj rear seat
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Old 01-27-2014, 01:27 PM   #14 (permalink)
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Fuck yes


TOTALLY
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Old 01-27-2014, 06:27 PM   #15 (permalink)
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Thanks everyone . I will be working alot more on this repower and keeping this thread updated when I get back from KOH
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Old 03-20-2014, 06:44 PM   #16 (permalink)
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Not much progress besides cutting the old motor mounts and welding the frame up. And mounted my new tires
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Old 03-23-2014, 09:09 PM   #17 (permalink)
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Well I have the engine bolted to the trans and held in place to make mounts. I also took off one of the coils on each C/O so it would be at full bump in the front so I could place the heighth of the engine!!!
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Old 03-23-2014, 09:11 PM   #18 (permalink)
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Full bump in the front
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Old 03-23-2014, 09:13 PM   #19 (permalink)
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Darn pictures keep turning on me.. Will a Moderator please fix them?
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Old 03-24-2014, 10:09 AM   #20 (permalink)
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What are you doing for motor mounts?

I'm putting a 4BT in a FJ55 and still looking for a clean motor mount to use with the narrow frame.
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Old 03-24-2014, 06:09 PM   #21 (permalink)
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What are you doing for motor mounts?

I'm putting a 4BT in a FJ55 and still looking for a clean motor mount to use with the narrow frame.
I'm making my own like I did on my 6bt in my cc Chevy. Ill post pics when I get them made. I used the large rubber rear leave spring bushing off a jeep Cherokee!

I'm using this same design but using the 3 bolts at the front of the engine instead
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Old 04-12-2014, 10:51 PM   #22 (permalink)
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Little more progress tonight. I was able to get the engine mounts done and a good start on the frame mounts!
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Old 05-06-2014, 04:48 AM   #23 (permalink)
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What are you doing for motor mounts?

I'm putting a 4BT in a FJ55 and still looking for a clean motor mount to use with the narrow frame.
I can help you out with motor mounts. PM me
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Old 05-06-2014, 04:51 AM   #24 (permalink)
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I'm making my own like I did on my 6bt in my cc Chevy. Ill post pics when I get them made. I used the large rubber rear leave spring bushing off a jeep Cherokee!

I'm using this same design but using the 3 bolts at the front of the engine instead
I am not a fan of using the 3 bolts on the front of the 4BT for mounting in an automotive application. It puts too much stress on the bellhousing, so if you use the front holes on the 4BT, you should really add a support at the bellhousing.

Or just use the 4 holes at the mid-mount location.
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Old 05-06-2014, 09:26 PM   #25 (permalink)
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I am not a fan of using the 3 bolts on the front of the 4BT for mounting in an automotive application. It puts too much stress on the bellhousing, so if you use the front holes on the 4BT, you should really add a support at the bellhousing.

Or just use the 4 holes at the mid-mount location.
I used the 4 bolt mid mount location with lord liquid motor mounts
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