Chevy Performance's LSX454 - Big Block Power in a Small Block Package!

Using the adage from '60's musclecars that "bigger is better", the famous 427 CID L88 was soon surpassed by a bigger, more powerful 454 CID engine in various configurations. Today, we've followed the same path with the Chevrolet Performance LSX454. The rugged LSX454 is all-new and designed for serious power in the 21st century. The amazing thing is that this big cubic inch package takes up the same physical space as a factory LS engine. With a carburetor and a high-flow GMPP LSX-LS7 intake manifold, the LSX454 will produce about 620 horsepower at 6200 rpm and 600 lb/ft of torque at 4800 rpm. For more information on the LSX454 go to www.chevroletperformance.com/P...

[@johnbehneman1546]

Perfect!!!! LSX454 + T56!!!!! Thank you so much!!!! You made my day!!!!

[@redrolo149]

I'm going to get me one of these, at least the Block for now and build it. At first I was considering the LSA block as my base, it can old a very respectable amount of power but for only about $600-$800 or so more I could get this cast iron behemoth of a block.

[@cthomas427]

i just picked up mine from gm performance parts for $9500 w/o intake already have Holly intake highrise going on it and changing out the cam just going a little bigger should be in the neighborhood of 675 hp and 640 tq when done should have a total investment of less than $11,000k going into my 2003 silverado ss awd

[@jamesross117]

i'm really interested in this engine but can't find one for less than 11,000k.could you tell me where you bought yours could e-mail me at [e-mail]

[@Stolencamaro]

He probably bought ford

[@Justadudeman22]

What happened

[@mjz187]

Where u guys finding these only ones I see is 28k

[@freddie90014]

M Jz That’s the same thing I want to know

[@Dan-ig1xe]

one day I can afford to buy one of these

[@MAXIMOGRADOadiccion]

Same here 😭

[@91hamod]

+ChevyHDss Chevy life I can only dream

[@rememberussliberty1822]

Why? Just get a 6.0

[@Fortnite-yt7zf]

its been 4 years u better have it by now

[@fogtown3027]

Bryan Beldock Lol right!. I think this 454 is a better option than most of the LS platforms.. it’s all forged components with over 600hp & torque for 12K is a good buy 👍

[@mechmancannon]

Awesome!

[@MrTrickedya]

very nice I have one in my ute

[@nickdominic9103]

i died at 1:55 lool that was funny.

[@rcfirdy]

What material is used for the intake valve seats?

[@18fernancho]

I love 454

[@utahcountypicazospage5412]

do these heads drop valves or have they figured that out

[@DIZ4SHIZNITS]

Chevy BEAST!!!

[@ldioticnuzhen99]

Trash

[@DarkLinkAD]

"No 5.3 TRUCK engine is under this hood" Yeah, because .350 cylinder wall thickness is a bad thing..

[@Justadudeman22]

Dont get it

[@DarkLinkAD]

@@Justadudeman22 Well, that comment was a year ago but I guess Id have to assume. So ill assume this guys leaning on the idea that a 5.3 is inferior.. When In fact a 5.3 has the thickest cylinder walls available, meaning rigidity, reduction of vibration/flex or greater potential to perform.

[@swappedoutZ71]

@@DarkLinkAD nah no 5.3 has potential to outperform this. The block itself is still better

[@andywalters8763]

Yesthereisyoudontknowmotorlikeidoo

[@9090ruby]

Lol because a 5.3 block is built to handle 2k plus hp. This isn’t a ls7 block

[@greedymoneymusic]

Dear Santa, 😂😂

[@Ls3guy]

ill take one

[@mitchele90210]

I want it for my 1972 monte carlo

[@WesleyBradley-ov3vs]

Any insight to building an 8.1 let vortex. Few options

[@Cityoftrees1911]

What would be the most practical and reliable motor to swap in a tired 99 escalade? i still want good power but I'm not going to be towing much.

[@Adam-zi5se]

Get a low mileage 5.3/6.0 Vortex, should drop right and and replace the old engine

[@Hugeroost]

Any old street racer over 40 knows damm well you can find an old BB and just go 30 over and build a 600hp motor that's bullet proof for 1!3 what this is. Actually 800hp is easily attainable it's that massive amount of BB torque that tears your stuff up. My brother had a 68 L88 vette that had some work done to it and after 10 years of flogging it twisted that car up so bad the doors wouldn't close anymore lol

[@ViperMods_216]

Good luck fitting a BBC in a c5,6,7

Would y'all swap out an LS7 for LSX in a Corvette C6 Z06 for track use?

[@MarMPB]

That's sweet! But I fail to see what would be the point to swap the LS7 for one of these beauties. If the HP number are correct the EFI LSX would put 580 HP. About the same of a intake/exhaust/tuned LS7. A streetable cam would be even more powerful. Is that correct?

[@justinhiggins2210]

That ls7 has titanium con rods. From the factory it can Rev very high and it is all aluminum, block and heads. I think that lsx454 has an iron block. If I had a choice I think I would stick with a ls7.

[@ronaldirwin3305]

I have a suburban that would fit in. Wink!!!

[@jasoncolyer6286]

Need this engine with a Whipple supercharger

[@Wildkat-1]

You can super-charge any engine, you just don't put a lot of boost in a higher compression engine...!

[@alfonsoprieto1039]

🧐 Ese poderoso motor en mi montecarlo, jalaria bien duro.

[@mr.3phase228]

I'll take my 5.3 truck engine ANY DAY

[@parabellum_1416]

So stock you can’t use forced induction. What about nitrous?

[@Stolencamaro]

Perfect for nitrous

[@dr.schmuck3845]

Thinking of a lsx for my camaro, how does it go with boost?

[@mynameisfrank6519]

Watch the video lol

[@MoranisToboggan]

Trying to convince my wife to put this in her 2006 Mercedes S430 wish me luck.

[@diablocls55]

M113k swap it instead.

[@ManuelNava-cb8re]

Nice😀🥰

[@FastuunEFISchool]

Can I get one of these?

[@menac3daloc381]

Where can I purchase?

[@alfredchavez433]

Any recommendations on plugging this engine into Chevy 1990 454SS. Just want to keep it stock with nice performance. I've had my SS for over 20 yrs and it's part of the family. I'm okay with 400 to 500 horsepower - thoughts???

[@seanholley4601]

Any of these motors in stock ??Any place??

[@juanvillanueva5187]

fh daily Chevrolet in San Leandro California might have some

[@levernbaker3672]

Why pay 15000 for this engine when you can take the 6.0 build it way cheaper and blow the doors off the so called 454

[@KobaBlack113]

levern baker you're serious. Stock block vs aftermarket block.

[@4406bbldb]

Reliability matters some. I'm from the build it yourself or don't brag about it school. Funny i also was a test driver, mechanic, Dynamometer operator ect. At Chrysler. And i still built everything i raced.

[@scottsmith6571]

Lsx block cantake over 2k hp

[@Justadudeman22]

Yeah get a 6.0 for 4000 call it a day.

[@HardNorthOutdoors]

@@scottsmith6571 yyp, but it's maxed out in this application. So a 6.0 build will be cheaper and has been proven to hold over 1500.

[@Southernbread686]

2.30 size valve and only a .625 lift cam id say that was a mismatch ehhh yea

[@ymmdoitpruitt9240]

if your watching this in 2020 and cant find one in your bundget i have one straight from gm in the crate still sitting in my garage that i dont know if i should drop it in a 67 firebird so if you want to work prices out hmu .

[@randy1ization]

how much. what state are u in,?

[@ymmdoitpruitt9240]

texas tough Dallas,Texas

[@cooterbrown7681]

@@ymmdoitpruitt9240 did it sale

[@BUILTLIGHTWOUNDTIGHT]

♡♡♡-!!!

[@danteljackson]

Can u say "72 impala coupe" :)

[@spencernutting3466]

I feel like u could run a small amount of boost what does everyone else think?

[@StevenWillmy]

+spencer Nutting You could, yeah. You could run a lot if using race gas, E85, etc.

[@greedymoneymusic]

Or jus a big shot of dope

[@ellenorbjornsdottir1166]

Run 8 pounds with this in a semi :)

[@Kreegers_performance]

you can Darton sleeve a ls1 and get the same thing but with a aluminium block.

[@lorenzoweed420]

You cant sleeve a 5.7 to a 7.0

[@artificialdopamine6542]

@@lorenzoweed420 a 454 is 7.4L

[@jimmyjim8939]

This engine makes great power but not without issues, has the same valve guide problems as the ls7. Pretty much a money pit!

[@liga77777]

Hello. Issues like….

[@ViperMods_216]

Ls7 valve issues are so rare you don't even understand lol it's a huge money maker for shops scaring people into getting work done

[@highvelocity123]

So they stroked a 350 block all the way to a 454. Thats going to confuse a lot of people who always recognized 454 as a big block motor. It must sound amazing with that much stroke and cam...

[@Ls3guy]

it is a lsx block not a old school 350

[@highvelocity123]

The principle is the same. It's a small block casting with longer stroke

[@Ls3guy]

highvelocity123 far from it

[@highvelocity123]

Oooook. Yeah bore and stroke have nothing to do with cubic inch displacement ???

[@Ls3guy]

highvelocity123 the engine blocks are not the same

[@jimmyjim8939]

These engines have major valve guide problems, They LS7 style heads suck! they do make awesome power.

[@travisreddick7325]

So basically someone could do the same thing with a 5.3 ls block?

[@SoftiesTruck]

Did he just say that it makes more power with a carb setup?? why

[@jessekulbe1855]

Probably depends on the injection system, they likely used an ls7 style EFI. Am aftermarket carb will likely make more power compared with a bone stock efi due to increased flow and the cooling effects of atomized fuel but at the cost of fuel efficiency and throttle response

[@andredillard2332]

😂😂🙈would love that in every car

[@ericheine2414]

I don't think you really would consider a Lake boat a marine application. I mean freshwater is not really Marine.

[@artificialdopamine6542]

Thats the dumbest thing ive heard in a while

[@Icutmetal]

Nice troll.

[@gonzalezgrant]

So it's a small block 454

[@danielduvall7222]

James grant sure is!! That big cubes from a sbc

[@QQTrick1QQ]

LS engines are all the same size externally, they all start with the same block so there is no small or big block. Pontiac also had one block from 326 to 455. Just for something to type.

[@ellenorbjornsdottir1166]

@@QQTrick1QQ LS is SBC.

[@gonzalezgrant]

@@ellenorbjornsdottir1166 I was confused for a while lol

[@xwes21]

Near 10K and wont even give me a oil pan

[@cyrilwillardcable5613]

(I'm just 11 so don't call me dumb) can I change this to big block?

[@SMiller5488]

No, it is simply a very large small block.

[@StevenWillmy]

+Cyril Willard Cable Nope. You can take other LS blocks and put bigger sleeves in them and run a bigger bore and stroke. Companies like ERL sell sleeved blocks, or will sleeve yours. The LSX block comes with the best and biggest sleeves you can run, among other things. Basically, it's a pre-upgraded "small" block. Eventually, you run out of room on the LSX, as the bore centers are only 4.4 inches apart. You have to go with a physically larger block. These days, Chevy style big blocks are made with up to 5.3 inch bore spacing, and buildable to over 1,000 cubic inches, or 16.4 liters.

[@chadwilliams8613]

Cyril I applaud you for being 11 and watching videos such as these. Makes me have faith in humanity

[@khaaleliilighntingcoronado9009]

you're dumb get off the internet, go to bed

[@davidbeachel]

No, a “Big Block” is a physically different component altogether. Like the original 454 that was mentioned. Or the more recent 496/Vortech 8.1liter truck and industrial engine. This is a standard LS-Series size engine made to displace 454 cubic inches.

[@davescbradiorepair8195]

NO THANKS ILL STICK TO THE OLDER CHEVY 454 AND FORD 351 CLEVELAND THEY BOTH EASILY MAKE THOSE NUMBERS WAY CHEAPER.

[@Donatellangelo]

Can't find anything decent to stick it in! :(

[@mongoose2040]

It's an LS! You can stick it in just about ANYTHING you damn well please! VW Bug? Sure. Willy's Jeep? AWD for great hook. S2000? You bet, though I would mod the front suspension. Skyline GTR? Wouldn't be the first. Mazda Miata? Why the hell not? Chrysler Towne & Country? Grocery runs in record time!

[@DarkLinkAD]

Your spending to much time at the pub.

[@Stolencamaro]

And carby version doesn’t fit under 69 camaro hood 😭😭

[@Adam-zi5se]

Just use EFI bro

[@erod017]

But with a $15000 price tag I'll just stick with a 5.3 truck motor or go to a junk yard and find a suburban with a real 454 and yank that out

[@Lu-e]

erod017 is the 454 better than an LS?

[@joemama069]

erod017 i'd stick with a 6.4 Hemi for 8000$

[@blindabinda1234]

Alonzo Gonzalez no not at all.the suburban 454 he's talking about They are just an old school style 2 bolt main bbc style engine. The lsx 454 is a 6 bolt main 454 in the same package size as a regular 5.3 ls. It's just very expensive. You can take a 6.0 ls truck engine and get 700hp out of it with a turbo and proper fuel upgrades no problem.

[@1986z28owner]

LOL, "super strong" standard scat I beam connecting rods w/ 8740 bolts.

[@garygill7540]

Well then what does it include? F all

[@causeimbatmaaan]

It's okaaaaay, but not much bang for your buck...

[@howabouthetruth2157]

causeimbatmaaan Your buying DEPENDABILITY with this engine. The damn thing comes with one hell of a warranty for a race/street engine. 50,000 miles/ 2 years. If the engine is shit, or had faulty components, you ca bet it will fail within that warranty mileage / time frame. Let's see someone else give you that kind of warranty IN WRITING with a small block with this much power & performance for far less money. NOT HAPPENING. That's why these engines are damn near bullet proof. Ya have to do something pretty stupid or irresponsible to blow this engine up.

[@causeimbatmaaan]

Howabouthetruth That's not that impressive for $15,000. (600HP 11:1CR) As far as the warranty issue goes the engine pro warranty is available from reputable builders which is 3 year/unlimited mileage so that's even better.

[@Stolencamaro]

What engine builders offer u that? No many if any as they blame components of the engine which “they dont make therefore they hardly offer u waranty

[@PlateFlipper]

Pretty cool if you ask me Chevrolet Performance. ♻️You'll like this gadget: #TryDEAL.♻️

[@tylertorres7708]

2jz is better