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4L80E |
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Red20
AMC Addicted Joined: Jan/29/2013 Location: Oceanside CA Status: Offline Points: 1556 |
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Posted: Nov/27/2018 at 1:25am |
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I'm getting a EZ-TCU unit new in the box in a deal for a Holley Terminator EFI system in about a week or so when the guy gets back in town. That said, I figured I might just look into an overdrive swap. While I've always been enamored by the Gear Vendors stuff, I don't have the coin to go that route with my TF727. I already have a Novak adapter for a GM automatic, so a 4L60/65/70/80E swap would be an interesting choice. I've run a 2004R before in my Javelin and liked it, but electronic control and tuning seems like the way to go if I can.
The issue is I have no idea if I'll be able to fit a 4L60E in the tunnel, much less a 4L80E. I'm also concerned about my headers. Any ideas how tough this is going to be?
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1969 Javelin SST "Screamin' Banana" - Totaled Feb 2018
1973 Hornet Sportabout X "yellajack" - 360/727/TracLoc DAILY DRIVER |
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motorhead_1
AMC Addicted Joined: Apr/16/2014 Location: AZ Status: Offline Points: 1000 |
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by your signature, you're wanting the 4l80e in the hornet?
going to be tight if it goes at all. the 4l60's/65's are quite a bit smaller how much hp do you plan to push through it? some say the 4l80 is like the th400 and the 60 the th350. i have an ls1 w/4l60e and 350hp at the wheels in my 71 xj6. holds up just fine
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69 SC/Rambler tribute 401/th400, 68 Rebel SST LSA, 66 F100 460/c6, 88 Merkur Xr4Ti, 71 Jaguar XJ6 LS1, 08 Supercharged Tundra
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304-dude
AMC Addicted Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9081 |
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donno, why not get a good used gearvender overdrive? Them 4L80E trannies are heavy and big. You will probably need to cut your tunnel on a small body car, even on big bodies as well.
If your happy with your trannies performance and functionality, why make it more complicated. Just my 2 cents 9 plug nickels worth.
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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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Mopar_guy
Supporter of TheAMCForum Joined: Jun/07/2009 Location: Ohio Status: Offline Points: 4805 |
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For what you're doing with it, a 4L60e will hold up fine with a shift kit and a couple of servos and it's a whole lot smaller. I couldn't get a 4L80 in my Javelin without modifying the tunnel which I didn't want to do due to the console in it but the 60 fit just fine.
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"Hemilina" My 1973, 5.7 Hemi swapped Javelin |
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Lime Green 70
AMC Apprentice Joined: Dec/01/2017 Location: pa Status: Offline Points: 74 |
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for good info on the 4L80 trans I would visit the various camaro forums . lots of guys swapping ls1 engines and these trannys into first and second gen cars . most of the fitment issues arise with the cooler lines .
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Buzzman72
AMC Addicted Joined: Sep/15/2009 Location: Southern IN Status: Offline Points: 2713 |
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Podnuh, 'round these parts a used Gear Vendors OD is about as rare as a mint-condition Marmon Wasp.
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Buzzman72...void where prohibited, your mileage may vary, objects in mirror may be closer than they appear, and alcohol may intensify any side effects.
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304-dude
AMC Addicted Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9081 |
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Oh! I figured finding a dually or an extended crew cab, or a wrecked motor home may be an easy task. Just throwing out options.
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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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PROSTOCKTOM
Supporter of TheAMCForum Joined: Jun/20/2010 Location: Indiana Status: Offline Points: 2427 |
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Personally here's what I think and know about overdrives. A 4L80 is complete overkill in physical size and power robbing for a 360. Sure it will work, but there are better options. THe 4L60E/ 700R4 that everyone has seemed to flock to in the last 25 years is a even poorer choice in my opinion. Have a deep 3.06 first gear and then dropping back to 1.62 for second is like driving an old 3-spd. It goes like heck in 1st and then nose dives in 2nd. You mentioned having used a 200R4 in the past. While a 200R4 does require a few hard parts upgrades it IMO is the better choice due to physical size, excellent gear ratio spread, and lack of electronics. I would also look into using a Ford 4R75W if you must have an electronic 4-spd overdrive as another option. I have given serious thought to a 4R75W using a MSD TCM in my 80 Fairmont. In the end it all boils down to how much time and money you want to spend. Personally I would look really hard into using a 200R4 for it's physical size and excellent gear ratio spread.
Tom
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Lime Green 70
AMC Apprentice Joined: Dec/01/2017 Location: pa Status: Offline Points: 74 |
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I agree with most of what Tom says regarding the 4L80 . it's kinda overkill for a mild 360 .now behind a built 401 is another story . most of the power robbing comes from using a crappy converter . the stock one is complete junk for a performance application . also the electronics package to run one is expensive , but you can run a manual valve body in one . the 200r4 can work well { just ask the buick guys } but needs to be built right .
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Buzzman72
AMC Addicted Joined: Sep/15/2009 Location: Southern IN Status: Offline Points: 2713 |
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Around here, damn few people pay that extra $3 grand plus installation. If they were common, I'd already have a couple stashed in my garage.
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Buzzman72...void where prohibited, your mileage may vary, objects in mirror may be closer than they appear, and alcohol may intensify any side effects.
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