454 to 350 swap. trying to get a little more power behind the wheels.

454 to 350 swap I've heard some negative things for this swap so just trying to get a idea of what everyone here thinks. I’m about to buy a 87 454 that I’m going to rebuild and put in there. I am going to get a new distributer, wires for it. The 454 went into a 1980 GMC Shortbed 4x4. But the fuel pump is too tight to the frame and the manifold is hitting the steering box. Everything was direct bolt up. Needless to say, I want to stay with fuel injection and keep the 4L80E transmission. I think some of this depends on the power you are going to. Engine is in transmission is in. Is this a practical conversion? Mar 4, 2008 · If you are not looking for alot of torque then the 350 is the way to go, if you want some low RPM stump pulling power then go with the 454. 4L are 80PPH, and 91-93 are 74PPH, while 94-95 are 46PPH @ 13PSI but they were run @ 26-32PSI for 67-72PPH. will this work ? Jan 3, 2024 · How plug and play is s vortec 454 swap. I figured a 454 swap might be easier than a LS as they came in these trucks for the SS, 2500s, and 3500s. I want to swap it for a SB 350 with as little pain and cost as possible, then I hope to sell the 454 to help offset the cost. I've been considering Swapping it to a 454 bored out. I figured that eventually I'd swap a BBC back in there when I came about a good motor. 1/ZF6sp RC/LB 2001 Chevy 2500HD 4x4 6. I picked it up for $350 and after I get done stripping it I am going to send it in as the core for my Dads motor so I will get the $600 back on that. 3 or 6. I am putting this into my '86 Sierra Classic 1500 and currently have a TH350 transmission, dual exhaust set-up (header back & 2. Jun 24, 2010 · i have two trucks, both are 1998s. Are we talking about a current 350 CID -300 hp motor going to a 550-600 hp 454. Thinking of swapping the engines between them, Vortec 454 and Vortec 350 I'd imagine it would be a pretty simple swap since the trucks are very similar other than the small/big blocks. 19. Jul 5, 2009 · I would like to swap out the 454 for a more modern 350/5. Mar 26, 2020 · 350 to 454 Swap Jump to Latest 2. but it is good to know that it does need to be moved on the l6 Apr 19, 2009 · C3 Tech/Performance - 1974 350 to 454 swap - Saw some postings regarding LS swaps in 74's. Sep 4, 2011 · 454 to 350 swap. Sep 23, 2009 · Im looking for a solution to switching a 350 to a 454. After going thru and doing some maintenance and tune ups I was going to get a valve job. The 350 block is cracked on both sides between the freeze plugs. The motor is coming with the ecu and wiring harness. Has the heavy 14 bolt full floater axle. 7/4L80E 1979 Chevy K-30 4x4 4sp 4. The injectors for 88-90 7. The motor mounts interchanged, the transmission bolted right up, my 4 row radiator went with the 454. Aug 31, 2010 · Re: 350 to 454 swapis it worth it? I got on CL and found a 454 to use as a donor for some of the parts i need such as Harmonic balancer ect. was wondering what off the 350 would work on the 454 block accessory wise, my car is factory power steering and ac and I would like to keep everything looking as stock as possible, and in the stock locations. You're prob going to need the transmission to Sep 25, 2020 · The details of engine swapping a big block chevy for a small block! #engineswap #bigblockchevy #squarebody #squarebodychevy Sep 8, 2015 · hey guys got a 72 ss with a 350 and thinking about pulling that out and putting it to the side and dropping in a slightly built big block 454. 454 will tow circles around the 6. What is everything I need to do to make the swap. trying to get a little more power behind the wheels. Fast forward to now, and I've had a 454 built for me with the intention of putting it into "Big Blue". I plan on swapping the factory 350 with a rebuilt 454 from a 1 ton of the same era. You will need to do a few things to make the 454 more efficient, but in the end you will have a solid, reliable, powerful engine that you will be happy with. I need to what I’m gonna have to do to get it out I’m my truck? What transmission with Jul 31, 2023 · A couple of years ago I purchased a 1990 C3500. I am putting in a 454 tbi bored 30 over with a mild cam. The spline count is different in the transfer case. I would look into fuel lines on early CHevelles the SB had 5/16 and the BBC had 3/8 lines. I found out that the fuel pump is the same. A final touch on what it took to change it all over. Jul 27, 2009 · I dont think u can even compare the 5. Mar 21, 2012 · Alright guys, so I own a 1990 C1500 Silverado with a 350. Apr 15, 2012 · Like the subject line states, I just swapped out my 350 engine for a 454 engine. I've used the search feature. Im aware the TBI 454 will be much more plug and play but I also don’t want to swap for an extra 30 HP. 0 with the 454 if you are going to tow. . One is a 2500 ext cab and the other is a 3500 crew cab, both are 4x4 automatics. Jul 13, 2010 · '78 C-20 454 to 350 Swap Jump to Latest 3. Also how hard is it to make a gen 5 454 run like a gen 6. Both will work but I have found that using 350 mounts on the 454 will cause the fan to rub the bottom of the fan shroud. Dec 2, 2013 · 2002 Chevy 2500HD 4x4 8. Jan 21, 2015 · C3 Tech/Performance - 350/454 swap - Ive had my 77 for about 2 weeks now. I have so far today swapped out ECM swap with an 88 GMC that I knew to be good, same code still set. Ideally I would go with the Gen VI or the 8. I plan on putting new manifolds on it and dual exhuast. Mar 8, 2017 · Use the motor mounts that come with the 454. May 23, 2012 · Re: 350 to 454 SWAP lol ok i was thinking last night about this and asked my dad and he was saying in the tri5 chevys that is what they did for the v8. Pulled the heads and found a messed up cylinder. 5K views 2 replies 3 participants last post by blindbrian Apr 21, 2020 Jul 25, 2019 · I'm actually contemplating doing a 454 swap on my 88 instead of camming and head swapping my 350, I'm thinking of going carburetor though as I've read several times that trying to keep the factory type fuel injection is a pain plus if you swap to a carb and add headers, performance intake manifold and the right cam and carb it nets you the most horsepower gains. I bought the 1979 GMC K25, 4x4, long bed, 350 hydro transmission, about 3 months ago. I need some help over here. Use all of the parts from the 454 truck in the K10. I have a 1999 Chevy Suburban C2500 with a Vortec 454 and a 4L80E trans. Posted from my CB using ch. I've always wanted a big block. Mar 15, 2006 · I did a 350/454 swap about 9 months ago. The 350 went back into the 78 Camper Special. You can change the input shaft on your transfer case, or swap it out with one that originally came with a 4L80. Apr 14, 2017 · There are a number of swap guides on the internet for swapping a 4L80 in place of a 60. What are parts off the 350 I can swap over to the 454 to save some Sep 2, 2018 · If you can swing it either a beefed up Turbo 350 or a Turbo 400 and a 12 bolt rear would be nice too. Not to mention I can get a gen 6 for Feb 17, 2023 · What are some things I need to know for the swap. I love the truck. 3. What do you have to change for the swap. I just dropped the 454 in and she lines up with the motor mounts just fine. Dec 4, 2020 · The VIN on this model checks out as a 454 cab and chassis truck from 1993. Here’s the story, I also need help with one issue. U have to do ALOT of mods to the later engines to get them to the stock 440 ft lbs of torque that the 454 is rated. Nov 19, 2014 · Re: 350 TBI to 454 swap I struggle with how much money to sink into the truck. 10 May 5, 2022 · Hey everyone. The 454 came out of a 78 2wd Camper special. I am calling the manufacture today. I'm going to need something new. 9K views 4 replies 4 participants last post by tuff82 Jul 13, 2010 Jul 14, 2010 · I have an 89 suburban that had a 350 tbi. I have a 89 k1500 with the 350 in it. Nov 17, 2017 · Hey everyone, I've got an 88 Jimmy with a 350 small block. The guy said he knew of a full 454 for the same price itd cost to Jul 16, 2021 · Looking to see what guys have done on a 71 Chevelle 350 to 454 swap to make sure there is enough room between the Radiator and accessories. 0 or 5. Apr 15, 2006 · The 350 in my car was evidently put up for the winter with no anti-freeze. I am getting a bigger radiator. I was thinking of swaping out my tired, 30-year old, 190 hp, dog 350 for that GM 454 HO create engine. MAKE SURE you don't use the 350 flywheel on the 454. Everything else should be obvious. Here are the details: 71 chevelle 454 engine out of a 81 truck/motorhome Alum-tech radiator and fan setup. The 350 is a great motor, but thats a lot of truck for it. 25" pipes), I'm running an electric fuel pump and regulator, electric fans x2 on a 3 core radiator. Jan 2, 2020 · You'll have to get the Throttle Body for a 454 since it's 50mm bore while the 350 is 42mm. Jump to Latest I would rebuilt the 454. Mar 8, 2009 · Hi all, I need some info. 7 or 6. 0/4L85E EC/SB 1997 Chevy Blazer 4x4 1994 Chevy K-2500 4x4 C6P 5. I still want the TBI. 0 port injection with the 4 speed automatic. It came to me equipped with a TBI 350, but the vin indicated that it was born with a 454. Rad is 3 inches but doesn't say how wide is the fan unit. Went to a local shop to get some prices. 1 but I could sell the truck, use the few thousand the engine would cost and get a newer used truck equipped to tow and carry the family. kmow bwswdsr xrvlq qhomuk kqd xkjdv yipg mya punokgay yhrxv