454 4l80e swap. Overview on how to swap a 4L80E into a 1971 C20 pickup.

454 4l80e swap. Jul 31, 2013 #6 Jims86 Full Access Member. Last year a friend of mine picked me up a 4L80E as a core from an auction for $50. Notes:1. The pump will fit your sender. Offs Mar 7, 2017 · This became a Chevrolet part number for the production use of a 4L80E automatic behind LS engines in selected heavy-duty applications. Mar 15, 2022 · Hello so I have a 1993 Chevy K3500 with the 350 small block and a 4l80E trans, and I was wondering if could mount a 454 to my 4l80E without changing the bellhousing. 3L, 4L60E, 12 bolt posi 3. amazingly the driveshaft is perfect, just need to swap the yoke to the one from the van. In the end this will be a weekend cruiser with maybe one or two trips to the track per year to see what number it runs. Right now I got a 502 mated to a turbo 400, 4. The adapter assembly fits 1971-79 GM NP205 with a figure 8 front bolt pattern, and is designed to replace the 10 or 27 spline male inputs. keep me posted and ask me any question u have!!! good luck Driveshaft, since the 4L80E is a little longer I need a shorter rear driveshaft and a longer front driveshaft. Jan 17, 2010 · I am currently in the process of starting a LQ4/4L80e swap into my 1970 Chevelle. Oct 7, 2021 · 1994-1995 454 uses a higher pressure pump than the earlier years. Fast forward to now, and I've had a 454 built for me with the intention of putting it into "Big Blue". Couple questions: 1. 1L/4l80E into my '75 GMC a couple of years ago. It’s great because I can now drive the truck at 65 on the freeway and the engine is at about 2,000 RPM with the torque converter clutch locked. Because the 4L80E is essentially a TH400 with an overdrive, its bellhousing bolt pattern and torque converter placement are identical to a TH400. I have been transformed from an indifferent party Sep 17, 2017 · C4 Tech/Performance - 4L80E Swap - Let the Games begin - About 2 weeks ago, I smoked my 700R4 after trying to make it live as long as possible behind my 383. I know that the motor will fit as long as I transfer the mounts from the 'Burban, but from what I understand the 4L80e is a bit longer than the 60. Comp cams 08-503-8 T56 swap 86 SWB crate vortec 5. Trying to see who all has got big blocks with 4l80 swap. yep i got it done in mine! need the harness and comp for that motor, i have the 4l80e bolted to mine, find a burban with a 454 and a 4l80e and use the comp and harness from that truck. Overview on how to swap a 4L80E into a 1971 C20 pickup. Apr 2, 2015 · 91 was was the first year for the 4L80E and '7060 computer. I have been trying to find the most info and a good parts list before I start to make the swap go as painless as possible. 3 Swap, 4L60e, 3:73 Posi May 13, 2023 · #3- (1997- 1999) 4L80E Transmission. 96236/. NP205 to 4L80e adapter (this also takes care of OSS sensor if the 4L80e I buy doesn't have one) 3. Will the the 27 spline th400 output shaft theoretically work if I put it in the 4l80e and altered my adapter to mate it to the np203? 2. Here is what it took: I got the 4L80 from the junkyard. Aug 27, 2017 · Being a 99 Hoe everything else should swap over nice and easy. Jan 27, 2016 · I am strongly considering a 4L80e behind my 454 tbi after the start of the new year. Oct 27, 2017 · You can use the factory PCM to control the 4l80E, you don't need a converter, you do need the flat flex plate from a 6. Add the 93 computer to control the 93 4L80E only. The question/concern that I have has to do with the OS in this salvage yard computer, and whether or not it will be compatible with my vehicle. 7. 0 Liter with 48K unless it's been overheated. The 4L80E transmissions of these years also use the same bell housing bolt pattern from the previous years. Apr 19, 2007 · Automatic Transmission - This is whats needed for the 4l60e to 4l80e swap! - For the last couple months or so, I get PM's weekly asking whats all required for the 4l60e-4l80e swap. Reduces engine/exhaust noise while cruising as well. Apr 19, 2020 · I am wanting to start looking for a 4L80e transmission for my 1 Ton Dually. even a 90s 454 (99) can only get 10-14 with OD Feb 21, 2014 · My question is the 4l80e transmission i have was slipping between 1st and 2nd gears so i was wondering if i could use a 4l60e transmission in place of the 4l80e. 12 valve Cummins P-Pump Swap, NV4500HD, SBC 425HP Clutch, 5x11 Feb 14, 2011 · I'd almost think about a gear swap before a 454 swap, especially since you are running a 4L80E. Jan 11, 2013 · I know the motor and tranny are both in great running condition. Any reason why I wouldn't go with a 6l80e over a 4l80e? I sometimes find them attached to used LS motors or later truck motors (LQ4, LQ9, LY6, etc). The 4L80E transmission is the advanced progeny of the legendary TurboHydramatic TH400 automatic transmission, and is based heavily on the 400 in both parts and strength, yet featuring an added overdrive gear, a lock-up torque converter and advanced electronic controls. 454's torque band is usually in Remember, my truck is originally a 454/400/205 truck with a manual speedo cable from the t-case. 2 DB2 swap, 4l80E 1994 S10, Forged 93 Typhoon 4. The upper radiator brackets are also different on the two engines. I would recomend Compushifts controller. PUGSY 69 El Camino, "CURSE" 5. I found a deal on facebook marketplace for a 4l80E, np241, and a seized 454 all for $200 so I bought it and then sold the seized big block for $120. I have an old 1995 Class A Motorhome built on a chevy P30 chassis. I have a TH400 right now that needs to be gone through. Mar 15, 2022 I have performed a 0411 PCM swap into a 1999 Quigley 4x4 van. Perfect candidate for a rebuild. Mine is a 454 TBI and the Dana 70hd rear end. Jul 31, 2023 · A couple of years ago I purchased a 1990 C3500. My dad has a 96 GMC Suburban, with a Vortec Feb 5, 2021 · The transmission we’ll be using with the new engine is a Chevrolet Performance Supermatic 4L85E. It is backed up by a 4L8 GM 4L80E Automatic Transmission Introduction. If I purchased the motor and tranny (6l80e) altogether, are there any issues with swapping in straight in with the motor Jan 6, 2021 · 72 Chevelle wagon, Gen VI 454 on the stock mounts, 4L80E on a modified stock cross member with zero floor modification. 31, LS 4 wheel disc brakes Aug 29, 2010 · Danny, I skipped the a/c part on my swap. only got in a few hours today. my buddy has a 454 in a 90 crew best he could get i want to say 7 or 8 (th400). Feb 26, 2009 · ok there are four things ive learned about a transmission swap #1 fuck a transmission swap! #2 you can dismantle an entire 99' OBS chevy with nothing more than a 15mm and 18mm socket and/or end wrench and #3 word of the day = "hoopajew" #4 fuck a transmission swap!!! May 26, 2023 · So here’s the deal; I have an 85 C10 truck with a 305 small block engine, 4 speed automatic transmission, and 2. And also, If you plan on using your 91 4L80E your gonna have to put the 93+ harness in the transmission because they put a new connector design in it because May 5, 2022 · The name 4L60E stands for 4 forward gears, a longitudinal mount (for rear-wheel drive) a 60 relative torque rate at 360 lb-ft, and an electronic valve body. The . PCM was from a 2001 Express van, with 350 Vortec and 4L80E. I want to burn a new chip with the 454/4L80E bin and swap it in my truck, and yes,, I do Know I have to rewire the plugs. I have a couple of questions concerning swapping the 4L80e into the Chevelle. I think you need to see your dealer ASAP. Yes it was a 4l60E to 4L80E swap. Every connection was marked where it went too. Feb 3, 2011 · I swapped a 96 vortec 454 and 4L80E into my 1989 suburban and i used a painless wire harness and it was very well labled straight forward. The TH400 and 4L80E automatics are durable options. HP tuners is a great tool and I've got it running pretty well. Trucks a 94 ext cab v6. 2. 73 rear gear ratio. Completely re-pin the '7060 that is currently in the truck to use the 1993 computer, making sure the 4L80E wiring is correct (or add a new 4L80E harness) for the 1993 transmission. Yes, it's a V6. Dec 19, 2023 · Hello GMT400 Members, nice to be here. Worth the $150 to skip the hassle of doing it myself. First and foremost, not my truck, so not my money, just doing the work and ordering parts. Oct 31, 2024 · Big Block engines like the 454 big block need tough transmissions. I love the truck. Apr 9, 2012 · So I'm preparing to do the 4L80E swap and I have a few q's Got the truck rewired and is running on a 1994 454 4L80E PCM, new bulkhead harness for the trans is built and installed ready to go. Aug 27, 2015 · I went this route with the wiring. tomorrow I can clean the hell out of everything and work on getting the van fuel tank and lines in and then start routing the wiring and hope to have time for the column swap. I'm using a Vortec 454 fan, works great. I bought a 0411 from a local salvage yard, that was supposedly from a 2001 suburban with a 4l80e. Thanks guys for the help. We swap this 1970 Chevelle SS with a LSX 454 from Chevrolet Performance backed up by a built 4L80e transmission. Turnaround was only about 14 hours from HPTuners, but when that is the last thing that needs to be done it feels like 140 hours. Fuel pressure spec is 26-32 psi instead of the 9-13 psi the older engines run at. The PCM will work with your heater and ac controls and will run your instrument cluster without a problem. It came to me equipped with a TBI 350, but the vin indicated that it was born with a 454. Apr 13, 2019 · 97 ext cab short bed silverado 5. I just removed the compressor and hope to find the brackets later . Apr 24, 2015 · I bought a 4L80E automatic trans out of a late model pickup to put in my ’66 Bel Air. 03-11-2024 May 26, 2019 · Might want to clarify the weight you are towing, axle gears/tire size as well as engine upgrades done and terrain. . I'd like to find a good core but don't Mar 8, 2017 · my thing about the 454 is you have to feed all those CI no matter if you need the power or not. 67 6th gear will help a little on fuel economy when empty, but if you're towing more than a few thousand pounds in hilly or mountainous terrain the trans will be in 5th which is higher than your current . Jan 16, 2017 · Problem is the 454 never came in a 411, so while transferring timing tables and VE/MAF tables may be a 90% solution, I'm still concerned about cold start, idle, and all 454 411 Swap Help Jun 14, 2017 · I installed an 8. 0 May 19, 2020 · Yes it can be done, and it’s fairly simple. You might not even have to swap harnesses and PCMs. under the hood compared to the 454. VSS for NP205 output speedo cable 6. 7/th350 The wife's truck Sep 30, 2016 · Im interested in doing this same swap (411 pcm) I wold like to get the pin-out conversion for my 1998 C2500 7. TH400 3-Speed Automatic – For high-power builds; 4L80E 4-Speed Automatic – Overdrive and strength; Muncie 4-Speed Manual – For classic cars Feb 27, 2013 · In the market for overdrive tranny for the 72 Chevelle. It was in a ‘96 2500 4x4 Suburban with a 454. 3, PT-72GTQs turbo, 6 96Lb inj, Custom Mpfi intake, Big stuff 3, 4l80E etc 1994 Wrangler - 4. TH400 and 4L80E transmissions have the same bolt patern but a different sized indexing ring. Aug 9, 2014 · I have a Moates Burn2 and Tuner Pro, G1 adapter, and chips. The 4L80E is on a standalone with the ISS and OSS in The Trans controlling the shifting through the Compushift II TCM. Jun 26, 2021 · It's a good swap if you do a lot of miles on the highway. Dec 28, 2003 · I know the early 4L80E's had some cooling problems but a major update came through in '98 with a change to cooling lines, upgraded the case and changed most of the internal seals and friction material. Gauges 5. It's a factory automatic truck. now in my 91 crew i had a 350 and 4l80e we never lined them up or anything but i was getting 12 going 80 on the highway. 72 Concours Wagon 5. Pretty awesome that you can do the segment swap yourself. I need to know what needs to be done with the crossmember(s) and mount(s) for the new 4L80E trans So i have a question about doing a swap to the 0411 computer in my truck (2000 k2500, 454 and 4l80e). Apr 17, 2019 · Hi. Also your stock adapter would hit the oil pan of your 4L80E. The 454 lower shroud is NLA from GM and I am unaware of any aftermarket options. The radiator on the 454 is a full inch thicker than the 350. I realize this is a lighter duty 454 TBI AND 4L80E SWAP Aug 22, 2012 · It usually involves re-flashing your computer for the year of the 454 (if you get one with a computer in the deal you don't need to do this) and would probably be best if you hooked it onto a 4L80E transmission. For those searching for a used 4L80E keep in mind that GM made a few changes in 2004 you need to know about. Starting a 4L80E information thread for those that want to learn more about this transmission (the best GM ever produced in my humble opinion), considering it for a resto-swap into a Squarebody truck or K5 Blazer (or anything for that matter) and/or considering taking on a rebuild of this transmission. 38. 11gear. The easy guide to swapping a 4L80E and ditching the fragile 4L60E in the process. Currently 454 BB (450hp/500tq) backed by a TH350. factory press in rocker studs & rockers, comp 787 retainers & stock locks, ls6 springs. Exhaust, I plan on swapping all the 454 exhaust to the 1500. I haven't been able to located any yet. Joined Aug 3, 2010 Mar 1, 2012 · Like the title says, I'm looking to swap from a 60E to an 80E in my red '97 C1500. 0L, Banks header and DP kit, Dana 44s with high steer, ARB lockers, BDS suspension, Bilstein Shocks, 35" MTRs Dec 24, 2013 · lots of room. I go over what was all used to install the 6 Jun 11, 2016 · Figured Id post a few pictures of this since everyones always saying LS swap when the OBS 350 and v6s go, but no ones really documenting the swap. I see a couple options: 1. I want to drive this car long distances to cruising coast, power tour, etc. 75 od and result in worse fuel economy. This one was substantially built as well. Justin Cesler Writer Sep 11, 2013. The microsquirt controller looks like a pretty straight forward standalone unit that should make installation pretty easy, although a little on the pricey side. Feb 2, 2022 · Check out this LS swap on a Trans Am Firebird. tahoeyukonforum. I wasn't able to bring the 454 around to where it would run without falling on its face so I bought a 454/TR400 used out of Jun 24, 2010 · Is the spider wiring going to swap over to the MPFI setup on the 454? The 454 does not use the same fan or fan shroud as the 350. overdrive and a lock-up torque converter. com/ or someone else reputable for tuning the older OBD1 computers and see if they can reprogram your existing chip to control an 80E. Motor was already out by the time i got it, and 6. I cannot seem to get it to shift out of 1st gear when in 4x4 Low Range. 7 411 swap, edelbrock 29135 intake, lightly ported 906 heads milled . 3L V6 blew up its second 4L60E today. So I figured id put a list together and post it in here that way you can seacrh for it and have a complete list of what is needed. That involves fabbing a new trans mount if you have a 4L60E since the 4L80E is longer. 0 was in pieces. I figured that eventually I'd swap a BBC back in there when I came about a good motor. Long story short, the stock 4. Might as well go up to an extra gear since I'm doing a lot of travelling. Excellent upgrade that will make your truck more useful, enjoyable, and fuel efficient. I am hoping that one or more of you can share some wisdom. I am thrilled with how this project is shaping up! It was truly a great day to see all of this work come together and get this car back on the road! Many mor Oct 10, 2010 · 4l80 swap You will also need an adapter (GM part #15724745). Jan 1, 2024 · carbed 454 mark IV th400 np203 (already had part time conversion and I can't find a better alternative) I have an opportunity to get a 4l80e from a 95-99 4wd Suburban for ~$500 so I need some info 1. We pulled a vortec 454 and 4L80e out of a motorhome that had 40K miles on it and slapped it in! You can go to my build thread here: https://www. Nov 29, 2010 · 2003 2500 LQ9 heads and cam, Built 4l80E, DD 1994 Suburban 2500 4x4, 454 getting turbo 6. The 1997- 1999 4L80E transmissions have been updated to the new style of lubrication. The 4L80E's changed a few times over the years and some people found out the hard way you can't swap guts and cases with too many years in difference, internal lubrication changed and it'll roast itself almost immediately. Thankyou in advance April 2nd, 2018 #6 May 27, 2020 · Right now I have most of the parts I need to do the swap and I have spent about $875 but I still need to get the rear drive shaft shortened and front one lengthened. Operating system 1283002. 1 fan will not fit in the 454 shroud. Jul 1, 2022 · 2. I'd contact http://tbichips. I had it Nov 5, 2014 · The 50-410 adapter is for the figure 8 NP205but is for the slip yoke 4L80E (2wd). Jan 26, 2011 · I just swapped out the TH400 in my M1028 for an electronic overdrive 4L80E. The 4L60E in my Tahoe is going out, and I figured that since I have the 4L80E, along with the big block, is might as well swap both. I can reuse my current radiator (doesn't leak & my current 454 doesn't overheat) I'll just need to reuse the LS electric fans or find new ones + shroud & hoses. If your going to run a manual fan, the 8. As you can tell by my signature, I did it. check out craigslist. Used banjo fittings on the cooler lines from Sweet Performance. so 3k rpm at between 65-70 is not ideal. I would like to know we're you got yours, parts #s would would be great. Manual choices include the T56/Magnum series and Muncie 4-speed. 035 thou. Basically I need driveshafts from a 98ish 1500 thats stock with a 4l80e right? Suspension, I plan on swapping over all the suspension from the 2500 to the 1500. prob find a rolled or totaled one at a junk yard. See All 25 Photos. Feb 14, 2024 · L29 454 Vortec with 0411 swap - Timing at WOT Performance Parts, Electric Fan Kits, 4l80e swap harnesses, 6l80 -> 4l80e conversion harnesses, Installs. There's no reason a 4L80E should puke behind a 6. This thing is so much fun to drive thanks to the 620hp from the LSX 454 crate engine. Currently I have TH350 installed. Yes, I really want to do this. Headers 4. One thing you may need to do is tap into your PRND21 for your cluster. the 454 is a gen 4 block. Sep 11, 2013 · 4L80E Transmission Swap. I thihk it lists for $71. It has one oil cooler behind the bell housing. The 4L80E was a production transmission employed in GM trucks beginning in the ’90s, and it is based on the TH-400, but uses electronic controls and features. Aug 13, 2018 · For a 4L80E to go behind a 454 and actually shift, you'll need to either do a manual valve body conversion (This effectively turns your automatic transmission into a full time semi-automatic transmission) or you can install a stand-alone shift module and retrofit a throttle position sensor to your carburetor to retain automatic shifting. Found a bin for a 95 454/4L80E on here, but the parameters look all out of whack,,,, and are not close to the bin in my 91 ECU. com/threads/vortec-454-4l80e-hd-swapped-1999-tahoe-obs. Jul 27, 2016 · I installed a 4L80E as part of my LS swap and cut off both ears with a sawz all to facilitate header clearance. Nov 16, 2011 · I am putting together a budget Gen VI 454/4L80E combo for my 66 Impala 2 door and am looking for some insight in which direction to go with the heads. Seems the general take on towing with it is, that it will work, but that it is not what that setup was designed for. 4 (454) w/ 4l80e trans. No idea on miles, no converter. We swapped a big block Chevy into the car a few years ago with a TH-400 transmission and now I’d like to add an overdrive transmission. zfxt qwzt poj raln mtny asqw dmrv por xbrllu qmjnqvt