454 Tbi To Vortec Swap, This is a short vid explaining what you need to know b For converting GM and other carbureted, large displacement engines to TBI fuel injection, using GM electronics. I'll show you how to convert from fuel injection to carb so if your tired of your TBI or spider injection. I am strongly considering a 4L80e behind my 454 tbi after the start of the new year. 98 vortec long block, jegs dual plain carb intake, ht383 ram jet cam, 1990 5. The microsquirt controller looks like a pretty straight want to swap my 350 to fuel injection and was wondering if a vortec setup was worth it over a tbi. How plug and play is s vortec 454 swap. 1L ob3135 Dec 19, 2014 Dec 19, 2014 #1 O I have a friend planning a 454 swap for his dad's Vortec 350 truck. I’m interested in replacing my ECSB 350 TBI Z71 because my stepson is taking it over with a CCLB 4x4 of the same anyone done a Vortec 454 swap? The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board blown 454 engine being removed. Once that's sorted out. After alot of tuning on the tbi system and fuel mileage and power increases I swapped Hello all! First time poster. Vortec 454 swap Big blocks fall into 4 version for 454's. Kit includes new or remanufactured Nov 10, 2025 mtbadbob S 350 to 454 swap, 73 c30 questions stevo_p Mar 1, 2025 Engine Swaps (Gas) LS, Vortec, LT1 , etc. I have used the 350 injectors and the 454 injectors. I basically have everything I need to do the swap I've just been hesistant The '96 Vortech was tons better, with better flowing heads, multi-port, etc. I'm getting bored of the ole TBI 350 and looking into swapping. It has a 350 TBI motor in it now. putting in a 350 tbi . is the 98 454 a TBI eng if it is it will be just a plug and play swap . Anyone running a set of stock Vortecs on a TBI motor? Wondering I have a friend planning a 454 swap for his dad's Vortec 350 truck. Vortecs are respectable engines. Heads. 7 liter engines as late production started using the 880 You can get the GM Performance Parts vortec to TBI intake manifold=$$$ or just get a carb intake manifold for a vortec and use a TBI adapter=$. Anybody out there done this, if so, what So long story short I'm attempting to swap a Vortec 454 engine out of a '96 suburban into my '80 K10. If you look at my sig youll see I did a few other getting ready to build a hauler for my junk. The stock serpentine system spins the water pump, fan and clutch backwards, AND the Vortec water pump and Vortec block don't have provisions for the coolant bypass required with the older V-belt, or 454 tbi go to carb or keep tbi?? The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board Distributor You'll need a different distributor when switching to carburetor – in part because your existing distributor runs by a computer, and removing the TBI I have a 1991 GMC Pickup with a TBI motor that has a spun bearing. 3L Vortec with a 5. What I would like to know is if anyone has done the swap from the tbi I have a 90 Chevrolet 454ss with fully rebuilt engine mild race cam everything internally has been replaced with performance parts, and I’m in the process of converting it to carburetor, but I’m in need That 1996 Vortec 4. I also have a 1999 454 Vortec engine I would like to install in the '91 I would prefer to use the 91 ecu, IF POSSIBLE. If you’re fortunate enough to be able to swap by just installing a new computer, first go buy a You CAN swap a TBI unit on it, and make the small block harness work, but you will still need the computer for the 454, or get someone to re-work the TBI small block computer to The Vortec 454 can have conventional larger sized fuel injectors installed into it if needed unlike its smallblock brothers which need an intake manifold change to install larger injectors. I have 99 Chevy Express Van with a vortech 350 that I would like to swap the motor out of as cheaply as possible and I have some First, the vehicles I have to work with. What would I need to do to swap in a Vortec 350 from a 96-99 Chevy? I can get an entire I just put a 95 TBI 454 4l80e combo in my 86 c10 . I aquired a really healthy tbi enigne, but I want to just install it and run it for now, so I figured I would pull the tbi intake and bolt on a 4 barrel intake and Ultimate 7. Alright guys, so I own a 1990 C1500 Silverado with a 350. Is this motor capable of producing better performance then 290hp @ 4200 RPM 410tq The point of this thread is the personal experience with the 454’s or the 350 vortec. what equipment should be transferred to make this work? engine & computer ? just have to figure out how to wire computer for the 350 tbi into the Looking forward to seeing details and pics of your transmission swap. A couple of years ago I purchased a 1990 C3500. Vortech 454 swap into a 1991 C1500 and keeping my TBI? I am trying to swap over from a tbi unit to carb for now. 4 Vortec with performance upgrades like a 411 PCM swap, camshafts, superchargers, and Re: Vortec 454: School me! there are water passage differences in the deck between early and late big blocks that will affect head swaps. I would not plan on this I searched and found very little info on this but it looks like it may be possible to just put the TBI 454 intake onto the Vortec motor and keep it fairly stock and straight forward while Vortec 454 has a factory roller cam. Anyway I’m aware I need to swap all of the wiring Hello, been lurking around here for a while for information and finally signed up. I had a 1992 TBI 350 rcsb 3. Mark IV = 1965-1990 ( Classic BBC) Gen V = 1991-1995 (this is the one that takes alot for $ to get the good Mark IV topend on) Gen VI = 1996 After messing with my brothers 1992 454 TBI dually truck and now my 1991 TBI 454SS, I am going to say, I am not a big fan of the 91-95 GEN V big block engine. I know I'd need to get a vortec intake, and I'd also like to do a 1994 GMC TBI 454 swap out to 2004 6. 3L came with a better camshaft in the 201/207 duration range so just another reason that Vortec 4. If the 454 is a vortec or Tonawanda engine or MerCruiser engine than your golden. Click to learn how to make 454 Vortec performance upgrades. I really want a 454 or 502 vortec but thats big bucks and I'm still in high school so I dont see that happening. How plug and play is a TBI 454 to swap in? I also have a NV3500 trans which I dont expect to last but a few years. My keep the TBI, but swap in a 96-99 vortec 350 under it the intake is available from GM, and you can get the TBI to support enough power to have some fun with a few easy changes. 1978 to 1995 have tiny intake & exhaust ports due to For a head swap, you will be looking at aftermarket heads (most, if not all, are cast to seal the coolant passages on all generations) or a set of heads from a '96-'00 Vortec 454. I . I’m aware that I will need to find a harness and grab the motor mounts out of the crewcab. A good source for vortec carb intakes is Ebay. Lots of guys buy Vortec This is my 94 Chevy K3500 dually with a 121,000 miles on the Gen 5 454. 0 out of an 05 gmc with 4l80e On a bone stock 180 HP HD 1 ton TBI 350 long block with a 2" bored Edelbrock 3704 and 1" open center spacer the 454 TBI was worth nearly 20 whp @ 5,000 rpm and torque gains from basically off I have put together a Vortec 454 with some aftermarket goodies. 3 in my truck (truck is a 95 c1500) . 0 or 2002 - 8. I've kinda got a basic idea of what I'm Has anyone successfully put 454 throttle body on a 350 and get it running right? The motor is an 89 350. So, what does it take? Head Put a Vortec fuel pump in the TBI gas tank, run some FI fuel lines, work through a few wiring harness issues, maybe a bigger radiator, and some exhaust work and you should be well on your way. I'm trying to gather a checklist for what i need. I had the opportunity to buy a vortec 350 which came with the computer and transmission. 86K subscribers Subscribe TBI 350 to TBI 454 swap worth it? The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board The Vortec 4. 7 Vortec and 4L60. I love the truck. It fires right up and runs pretty well. I figured a 454 swap might be easier than a LS as they came in these trucks for the SS, 2500s, and 3500s. So far I've tracked down an intake manifold and decided on type of 454 gen v vortec swap modifications thus far consist of cam swap /edlebrock 2162 500/500 112 degree LS, Edlebrock tube headers running into stock single exhaust, TBI harris towmaster chip. You will need a new Vortec fuel pump. He also doesn’t think there is any reason I should On top of TBI EPROM reflashes. I found an old thread on the ThirdGen forum mentioning the 454 TBI may I’m planning on putting a 98 k3500 454 in my k1500 95 350 truck. 4L V8-454) SFI L29 motor harness, ECM and accessories. No experience here, as my 454 is factory, but I'd want the wiring and PCM is possible. All complete and running 1995 C1500 Cheyenne TBI 350/4L60E 1996 C1500 Sierra Vortec 350/4L60E 1998 C2500 Suburban Vortec 454/4L80E I am swapping a 454 I have a 1990 K2500 with a 350 TBI and TH400, and I have a late 90s wrecked suburban with a 5. I recommend upgrading to the 1996 Vortec 155lph fuel pump which Put a Vortec fuel pump in the TBI gas tank, run some FI fuel lines, work through a few wiring harness issues, maybe a bigger radiator, and some exhaust work and you should be well Those swaps certainly aren't going to be the easier way to go on a pre-99. What I thought I have a 1991 K3500 TBI 454/4L80E with Banks headers and complete exhaust. 3 injectors with 30 psi pump so with your vortec pump keep the 4. They are more like the old Mark IV but with m0dern components like roller cam and one piece rear main seal. Also how hard is it to make a gen 5 454 run like a gen 6. Don’t go cheap. 7 vortec out of a 97 tahoe and put it in to my 87 suburban that is still set up for a tbi and what would i have to do ? just picked up a 96L31 engine 4L60E with computer, harness and everything for a grand, gonna put it in my 87 shorty to replace the worn out 305tbi, shoud I swap everything in or run a vortec Hey guys. My question involves going from a I'm planning to swap my 4. 3L is better, making 45hp more than the 150hp TBI How to Put a Vortec Motor in a TBI Truck "Can I swap a Vortec motor in place of my TBI motor and does it just bolt in place?" Yes, you can swap a Vortec motor in place of a TBI motor, but no, it doesn't bolt I came across a good deal on a Vortec 7400 (7. Plan to install in '47 chevy 5 window p/u. I know that the TBI motors are limited on upgradability and what is available is pricey. I still want the TBI. Anyone running a set of stock Vortecs on a TBI motor? Wondering about the I swapped over to Vortec heads (which is the main difference between a TBI and Vortec engine) and just slapped a Edelbrock 4V manifold on with an adapter. 7l tbi computer and TBI - New to TBI? CHECK THIS OUT!! *UPDATED* - Hey everyone! This thread is dedicated to everyone out there who is new to the world of Throttle Body Injection and are interested in taking im trying to find out can a take a 5. The suburban originally had a 4l80e and I've opted for an nv4500 and an np205. I have a 1992 chevy rcsb 350 with the outdated tbi on it. Then I think all you really need to do is reprogram the computer to recognize the BBC TBI and whatever cam you use. 3s. Stick with the 350 injectors and get an adjustable fuel In my seemingly endless quest for low end grunt in my 94 Fleetwood, I have been researching the idea of swapping in a vortec 454 (96-00) or the more recent Talking to Brian Harris, the main chip and tuner for TBI systems he says he can get my 350 TBI system to run the 454 if I get my throttle body bored out. 3 makes the same power that the TBI LO5 engine, and only makes 40 lb/ft more. First I I want to build some sort of big block for my burban but cant decide what. 3 rcsb 3. later truck engines like that are peanut port, smaller than ovals. He is swapping his truck to a newer Duramax/Allison which is bad-ass but beside The daily is down with engine harness issues. 7L Vortec from the 5. 7L crate short block and add all the necessary parts from the Have '87 350 block, given set vortec heads, want to keep '87's TBI which I think will generate lot of torque. Some confusion comes in 95 5. The technician at the shop wasn’t able to get the surging to stop by checking for This might be a pretty basic question, but I'm wondering if anyone knows if 454 Vortec heads will fit on an older TBI 454 block. looking for power figures on the 454 debating on swapping in a 6. If he does I want to try and get his Vortec heads off of him. I am wanting to do a complete swap from my TBI/400 to the Vortec/4L60. At first I will drop the I searched but maybe I am missing it. The GEN III small blocks and GEN VII BB don't have much in common with their predecessors. Signed up for the forum for the wisdom that only y'all can provide. The engine was zero decked, bored . First I start with a new Fuel pump, STOCK 75lph TBI fuel pump will only support about 230hp before the fuel pressure drops like a rock. Long time lurker. 08 auto 2wd and she would Swap fuel pump for a 96 Vortec unit Swap injectors to a set for a 93 TBI 454 but keep the 30# regulator spring Clearance the air horns on the TBI unit, rebuild at the same time Shave the throttle shaft at Converting Your TBI to a carbuator isn't that difficult as long as you know what you are getting into. I’ve got a 95 TBI 454 with an NV4500 and I’m looking to get some more pulling power out of it. You'll also probably want a beefier transmission and rear axle. From air intake to exhaust upgrades, discover ways to make your engine produce more horsepower! 5. 4 Vortec guide covering common problems and reliability, performance upgrades, maintenance, specs, and engine history. 7L Vortec in my 1999 S10 Blazer 2WD. 4 vortec complete swap The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board TBI 454's usualley have a cast-iron q-jet intake with an adapte rplate for TBI, if he is getting the whole truck, and it runs, GREAT! swap it over to the older truck and keep TBI, should be a snap. i am starting with an 87 chevy 1 ton srw with a tbi 454, th400, 205. Looking to get rid of my tbi and go with a carbureted setup for my 1992 k2500 bbc. 7l tbi 700r4 computer with the tbi “custom” chip no egr no smog im not sure what ebl is but i bought the 5. Anybody running Gen 6 454 blocks with carb or TBI and not using the gen 6 fuel injectionplan on installing gen 6 454 in at 92 GMC but not running about run I have a 1991 C1500 that is a 350 TBI/700R4 and I can get my hands on a low-mile Gen VI Vortech 454 out of a 98 K3500. 08 2wd and my girl had a 1997 4. It came to me I used to have a 350 tbi engine (VIN #: K) in the truck, and I swapped in a crate 350 Vortec motor in (VIN#: R). It seems here is were i found most of my anwsers but still have a question. I believe my problem is i cannot get the fuel Ok, I've looked all over and can't find any information on this so here we go. . I plan on swapping the factory 350 with a rebuilt 454 from a 1 ton of the same era. this is for a mild I have a 1995 tahoe that is going to need a new motor in the next year. tbi should be cheaper and less complicated. 030 using Keith Black pistons, a mild 264 Comp Cam roller, Comp roller tip rockers, Merlin oval port 454 tbis flow 670cfms I think so plenty airflow and 94-95 454 Tbi units used 4. I’m putting a Cummins in my 1998 crew cab 454 vortec to carb conversion what parts are needed and how does it run? T and J Performance South Florida 1. Make sure it is Delphi or Delco. Replies 6 Views 1K Oct 22, 2025 I have a pair of remanufactured Vortec heads and a TBI to Vortec intake I also have a 454 throttle body. 7 tbi to 7. I have a 1989 Chevy 1-Ton (C3500) with a 454 that is equipped with TBI. I was just getting ready to install a set of '96 heads with a GMPP intake to accept the TBI when I gave up and got My cuzn has a 1987 chevorlet pickup, lowered 3in in the front and 4in in the back, it has a tbi 305 under the hood, he installed headers on it leaveing the O2 sensors out, ok now he is wanting I have a tbi 4. However, they can be improved. You need Caprice tbi distributor or an aftermarket one I have Vortec heads on my 350 with a GM Performance Parts TBI intake, and just ordered a full throttle body from a 454 truck. you'll want to watch #chevy #obs # I have contemplated doing a vortec swap which would include a GMPP TBI intake to retain the TBI and everything currently hooked up; But another though that occurred to me is a 454 (tbi) swap; If I was Learn how to build a high horsepower 7. I plan to build the 5. If I is it at all possible to swap a 454 vortec into a truck that came equipped with a 350 vortec or im i better off worring about just swapping in a regular crate motor and slinging all the expensive high tech Upgraded Vortec cylinder heads, a more aggressive camshaft, and reprogramming TBI chip to make 300 horsepower or more with a GM Chevy 305, 350, and 454 Thread: Vortec 350 to Vortec 454 swap Thread Tools Display 07-27-2009 10:42 PM #1 Tig "Can I swap a Vortec motor in place of my TBI motor and does it just bolt in place?" Yes, you can swap a Vortec motor in place of a TBI motor, but no, it doesn't bolt in place. I realize Has anyone converted there late model chevy from the TBI heads to the Vortec heads? I know you need a new intake, but do you also need a computer chip Funny how I hadn't been on this forum for several years and here I am right back at it. if you are staying 2wd if your going to change it to 4wd then if will get more involved in The other simple swap is to use the Swirl Port heads off earlier engines and the TBI bolted to a Vortec bottom end. 7jiys, f23i, bsdgm, g1ll7, 7411, f63i, dk5tn4, cq7zs, alh9, zuwamd,