8x Series V8 Swaps

Discussion in '80-Series Tech' started by beno, Sep 9, 2016.

  1. Lost Industries

    Lost Industries Supporting Vendor GOLD Star

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    I know it's not a huge jump in from the 1fz-fe to the 2uz. I also have an 01 sequoia with the 4.7. Drastically different to drive. Way more power and much better mpg. Pulled a 21 ft boat for yrs with it, no problems. No way I would pull that boat with the 1fz-fe. I actually spent a bunch of time porting, polishing and blending the intake and exhaust on the 1fz-fe head. I got my 96 from original owner with blown headgasket. Rebuilt it with oem .020 over kit and even did crower stage 1 cams. Worst decision ever. Doesn't seem to run any better than a stock 1fz-fe imo. The 4.7 is a peppy little motor that has better power and is readily available. I totally thought about a 5.3 with a 4l80 or 6l80. Tuning and stand alone is very easy. At that point why not use an atlas. Part time, lower gearing, and basically for the cost of the adapter.

    What motor/drive train setup you running?
     
  2. White Stripe

    White Stripe

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    The 4.7 is a ok motor, I dont like it enough to swap it in anything though. I have a 5.3 with 4l60e. It's not for wheeling really, it's going to be my daily driver, so I like the stock tcase for snowy/wet roads. It's not fast but it is quick. If u want to do a motor swap and decide against diesel, a LS is the way to go. All I have left is to wire up cruise control and install a fan shroud and the swap is done. It's quiet, and a nice drive. I used a stock 5.7 tundra muffler so it sounds just like a new tundra but it's a LS lol. A lot of people just dont have the money for a motor swap, but would like a lower tcase gear ratio. So if u want to make a adapter for 1fz guys for that I'm sure you'd sell some. A atlas is a good route if your tilted to offroad with it a bit if u can go v8.
     
  3. Lost Industries

    Lost Industries Supporting Vendor GOLD Star

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    I'm leaning towards the 5.3/4l80 combo now the more I think about it. Maybe a 6.0l. No way I'd go diesel personally, seen a few 4bt and 5.9 swaps locally and their loud and not worth the extra weight and hassle. That's just me though. The 80 for me is directed at family exploring, camping, fishing etc. Light wheeling. I've been rock crawling hardcore stuff here in AZ for over 10yrs. I have 74 fj40 buggy for the crazy stuff. I do like the AWD aspect for fast driving on dirt rds and in snow/rain. Lower tcase gears would be plenty of gearing for the intended goal. My end goal is 37s, but bumpers, sliders rack and a v8 with power.
     
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  4. White Stripe

    White Stripe

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    If your going with a 4l80 a inch or two body lift would really help. The trans tunnel is tight with a 4l60e on mine with no body lift. I almost did a body lift but was lazy and just made it work, but the extra room would have been nice. U may be able to do a 4l80e without a body lift, but if your going 37s and bumpers, may as well do a 2" body lift to help give more room for the swap and reduce suspension lift height for the 37s to help get better link angles. I would go either 5.3 or 6.2. I wouldn't go 6.0-if your going for cubes why not go full Monty to the 6.2 if your doing all that work. The 5.3 is nice if you are ok with less power, more mileage, and ease to find used for cheap. The 5.3 will also last longer since it has less stroke. With the 5.3 you can always supercharge it to whatever power level u want later down the road as well. My 80 will be towing my 40 to trails, so I have no need for 35s or 37s or even a suspension lift. I want to be able to corner well and take 80mph without handling issues, and get good gas mileage.
     
  5. DavidinAZ

    DavidinAZ

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    I have a lq4/4l80e with plenty of room in the trans tunnel. No need for a body lift at all in my opinion.
     
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  6. Lost Industries

    Lost Industries Supporting Vendor GOLD Star

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    where in AZ are you? If you don't mind I'd like to look at your setup to see how it fits.
     
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  7. DavidinAZ

    DavidinAZ

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    I’m in Prescott valley. Anytime you’re up here hit me up!
     
  8. Lost Industries

    Lost Industries Supporting Vendor GOLD Star

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    I was up there for a few months the end of last yr working on the new Bingham tractor dealership. It's not a far drive at all.
     
  9. DavidinAZ

    DavidinAZ

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    I work right up the hill from that place!!
     
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  10. Lost Industries

    Lost Industries Supporting Vendor GOLD Star

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    DavidinAZ , what's your setup? Tires, gears etc? What kind of mileage you get?
     
  11. DavidinAZ

    DavidinAZ

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    Lq4/4l80e 35s and 5.29s
    I haven’t driven it enough to get an idea on mileage. I’ll be going back to 4.10s eventually and currently have it pulled apart again while I ditch the gm efi for Fitech.
     
  12. Lost Industries

    Lost Industries Supporting Vendor GOLD Star

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    Cool. That's one of the main reasons I haven't worried about gearing yet. With a v8 4.56 would be pretty good with 37s, maybe 4.88 at the deepest. Having issues with the gm efi?
     
  13. DavidinAZ

    DavidinAZ

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    Yeah not happy with the gm setup, mostly the dbw throttle. I randomly get a throttle error code that kicks it into limp mode. I’m looking forward to a throttle cable again!
     
  14. White Stripe

    White Stripe

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    You can reflash the gm ecu to work with a drive by cable throttle body and swap out the throttle body/intake. A lot of people use dbw in their swaps, but I myself wanted drive by cable.
     
  15. DavidinAZ

    DavidinAZ

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    From what I could find, you can only do that to certain ecus. Mines one that can’t run a cable throttle, so I’d need a new ecu and re pin the ecu plugs. Or rip it all out and go aftermarket.
     
  16. thatcabledude

    thatcabledude SILVER Star

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    Have you swapped the throttle body out?
     
  17. White Stripe

    White Stripe

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    Are the ecu pins on your current harness of the same pin type of the ecu u would need? On my harness it's pretty easy to move ecu pins around. What have u done to diag/repair your current setup?
     
  18. DavidinAZ

    DavidinAZ

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    Yes and yes. Swapped all the gm parts for Fitech.;)
     
  19. FJ60Cam

    FJ60Cam Supporting Vendor SILVER Star

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    What's the consensus on the Marks engine mount brackets? I've seen some saying they were a perfect fit, some saying they had to clearance the firewall.

    Are there any vibrations in drive while stopped?
     
  20. 6806goats

    6806goats

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    Personally I prefer the cast iron block in off-road situations. Not sure if I’d ever hurt an aluminum block, just like cast iron if I wanted to add power adders later on. Probably sales hype from a guy selling aftermarket performance blocks who asks if you want your crank to walk like spaghetti. Vortec from early 2010 up until the point they go to direct injection. Gotta have the 6L80 or 90 for the lower ratio. If I have to lift the body 2 inches then that works too.
     
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