Heads/Cam/Intake on an LS1: How Much Power??

[@clay3865]

Granpappa LS1....The elder ....Still smacking out crazy numbers after 20+ years

[@bhcamaro2002]

For sure! My LS1 with just heads and cam made 426 at the wheels. I have videos of my SS on my channel

[@Highlander1432]

@@bhcamaro2002 Mine too Love these engines I'm on my third LS1 powered Fbody/Vette

[@samsqainch]

If you tied one of his hands he'd have a speech impediment !

[@SS_Gang777]

🤣🤣🤣

[@shanedoink]

ROFL!

[@jason91205]

Hahahahah

[@bcj68]

samsqainch That shit made me spit my Jack lol

[@groovytony8379]

LMAOO

[@Corsavette02]

Heads, Cam, Intake, and LONG TUBE HEADERS....those headers improve the baseline significantly with the tune...so...the baseline is up there.

[@gogglestheydonothing]

I was about to mention this. The stock Fbody exhaust was a little restrictive .

[@Highlander1432]

Headers are assumed

[@paulcurrier4947]

Wish the 5.7 had more love..but I understand its more rare than the other sizes. But I'd really like to see a street combo with 243's on it

[@jordancoyle6168]

I have a 2002 z28 Camaro I'm trying to find 243's for, I have a set of 317's but i really want 243's. I've been dying to try out that combo.

[@paulcurrier4947]

@@jordancoyle6168 the 5.7 gets no love its a shame. My gto has a fast 90 and 1 7/8 headers, love to see some #'s with a cam

[@theredgoatviking4686]

@@paulcurrier4947 my 05 gto has the fast 102 intake cam full exhaust and stroker motor made 490 at the wheels on a bad tune.

[@lsxbrandon6050]

I’m about to put 243’s on my LS1 and a BTR cam

[@bhcamaro2002]

I'm running prc 2.5 5.3 heads and custom cam in my 02 SS. Sound clips are on my channel if you wanna hear it

[@Stevesbe]

Idk I can't talk. 👐 without. 🙌 My🤲. Hands🙏

[@trentdawg2832]

It's gonna be HUGE.....

[@maccallan5603]

Let's see your vidja f#cko

[@hendo337]

Save the money on heads, run 706s to up compression and use a 238/242 cam for the same hp. Fly cut and run a thinner head gasket for more compression on e85 for bonus power.

[@Lu-e]

I got some 706 heads from a 5.3 LM7. Do I need to do anything to the 706 heads or do I just throw them on like that on the ls1 block?

[@Skip01]

Feel like this video shoulda been like a 3 part 20min a piece video. Showing each part installed and then dyno to see what each part made. But nah 3min of wacky waving inflatable arm man with a graph is cool

[@Wrensspeedshop]

I agree. There’s a lot that goes into each part, especially on a LS1 or any LS do that matter.

[@jjrock5]

😂😂

[@brandonjones2700]

You should check out his channel he goes more in depth

[@snotty_boi8248]

MAN, I DID NOT FUCKING KNEW THAT THIS LS1 ENGINE COULD BE SO FUCKING POWERFUL!!!

[@lzeta28pep90]

Did stock ls6 heads, Chinese manufactured intake with 102 mm throtle body summit stage 3 turbo cam at 226/230 .600/.600 lift at 113+4 lsa cam on my stock bottom end stock accessory long tube headered 02 z28 did 385 horse and 360 trq through a slipping clutch!!!

[@Compcams1976]

Thanks for sharing.

[@kennydeever4941]

Accessory components rob power, not much but they do. I have a stock bottom end 5.3,862's with pac 1218's,sloppy stage 2 made 380whp, im also only running an alternator, and an electric water pump.

[@jasonguadagnini613]

Think he can drive n answer the phone at the same time. Luv his vids.

[@jesselozano5124]

This is coming from someone who has no concept of mechanical insight. This video was fantastic and i followed it all.

[@abscrypto]

Impressive numbers especially once heads are made in a solid cnc factory 👍

[@roushedstangdfw2348]

You make good videos very informative and comprehensive.. keep up the good work .. I have an ls but a lot of people have 96-04 mustang 2v it would be good content because them motors need a lot of help

[@chrishansen7004]

best thing you can do is throw the motor out and swap a coyote lol

[@davidbailey1721]

Calculate HP per ci, and extrapolate out to a 383, it would be near on 600hp. Not bad for an NA LS1.

[@jhonsmith2150]

I'm saving up now to do this on my LS1 SS MARO M6 now! Can't wait to make the purchase! 🚗💨💨💨👏👌💪😎

[@Foreverjazzfan]

What’s crazy is how this crate motor which is the exact same that the 01, 02 Camaro SS and Trans Am has but it’s pulling 414 crank HP right out of the box which is roughly 350 whp. But the cars only put out 325whp even with the factory LS6 intake.

[@f34rthe4banger]

Because they put long tubes on it, gain 25whp usually

[@mikecooley3361]

Keep in mind that’s the rating. Back in the day people were seeing 305-345 rwhp stock.

[@khristopherstevens1794]

Stock motors rate 305hp-320hp for the 1998-2002 fbody

[@bryans3287]

I'm building LS1 5.7l iron block with forged eagle rods wiseco pistons shouldn't have any problem turning 528hp at the crank and I'm going to drop it in a 1971 international scout Comanche should wake it up a little seeing how the original engine is a 304ci 5.0l turned right around 215-220 hp

[@nirvanainchains9601]

Y'all can hate of his hands, but they deaf people thanking him. Not everyone knows sign language.

[@markbuskens6070]

That’s a lot of power for a 5.7!I remember when a prostock drag race motor had about the same horse power 🫢

[@gotmylk]

This video references the LS1 crate from an early model Camaro, but power output "stock" does seem high, even with the long tubes and fuel management system on an engine dyno. The LS1 in C5 Corvettes made 350 crank hp in the later models with LS6 intake. Seems more feasible that it's an LS1 with vette cam, heads etc. Otherwise that's one seemingly generous engine dyno. I have an LS1 with similar cam specs, 232/236/113, ported 241 heads that flow bench tested better than stock 243s by a long shot. Kooks LTs and offroad Xpipe. Car makes 418hp 398tq at the wheels. Figure 475hp at the crank. No way that Fast Intake and 102 TB are worth 64 hp.

[@bhcamaro2002]

Good numbers for sure! My 02 SS with prc 2.5 5.3, custom cam and kooks headers made 426 rwhp. Swapping the ls6 for a fast might gain you 5-8 hp max but it's not really worth it. I have videos of mine if you wanna check them out.

[@gotmylk]

@@bhcamaro2002 that's about spot on. Heads, cam, longtubes, LS1s are typically in the 415 to 428 rwhp range. Figure 50 to 55hp more at the crank.

[@bhcamaro2002]

Correct, depends on dyno as well but overall that's accurate

[@gotmylk]

@@bhcamaro2002 it’s pretty well known that that’s the typical range. I’ve had three cammed/ heads/ long tubes LS1 builds on two separate C5s (one built twice). All three builds with different cam specs and different porting on the heads. All were relative in power and torque at the wheels, give or take 10 to 15 hp/ tq. Three separate dynos I might add.

[@bhcamaro2002]

@@gotmylkthats awesome, I've heard mustang dynos read a little lower than others as well

[@ls6king316]

Thank you for the video 💯

[@trentdawg2832]

He would make a great ninja turtle for haloween. .....very smart dude!!!

[@searchyo8730]

Ok

[@khristopherstevens1794]

Why did his ls1 5.7 have more base power than mine? I have 1999 ws6 stock except for longtubes and 4:11 gears?

[@TheOhsemix]

for anyone wondering power numbers to the wheels. Its about 400-420whp with a manual less with auto.

[@zacharyrussell6983]

In a manual car, probably more like 460whp.

[@TheOhsemix]

@@zacharyrussell6983 doubt it, they are running no accessories so the drivetrain loss once on a car with full accessories is higher than the standard 15% loss. Also most h/c/i LS1 cars dyno in the low 400-450whp range. My estimate is more on the conservative side but 460whp would be on the high end of the spectrum.

[@zacharyrussell6983]

@@TheOhsemix true. I forgot about the no accessories. Yeah, 420whp is probably pretty accurate. Which to me just makes me feel better about my car doing 467whp through a 9” and 243 heads.

[@swmo_SS]

there’s mkre you can squeeze from the heads, i saw someone mention it already but running GOOD ported 5.3 heads to bump compression and running e85 to help prevent knocking would see you closer to that 450whp

[@dennisrobinson8008]

460 to 470 rwhp manual 410 to 420 rwtq

[@oler777]

Was that an LS six and not an LS one because stock you made massive amount of horsepower for an LS one I thought they only made 350 stock

[@timothywalker2273]

@richardholden I have a big huge question for ya ...... Why can't I take my 2000 mustang GT with the 4.6 coil on plug ignition system remove it and install a 5.3 LS engine I know the 4.6 has a 35 tooth reluctor wheel and the LS is 24/58 but I'm sure it's possibly to replace the 24/58 reluctor wheel with a custom 35 tooth wheel while I'm building the engine do you have any idea of the best way to attempt something of this kid I can't see how it's not possible

[@benjamincastillo861]

Can you add a 4 inch crank or have to change rods

[@roushedstangdfw2348]

Headers! cam! intake! and razor blades..

[@other4819]

Question, being told that you can replace C/H but the car can't be used as a daily driver b/c it'll over heat w/o redoin radiators etc....what do y'all say

[@scottallen7957]

I wanna see the power levels at the same rpm

[@jesusescalante5005]

Are those rhs heads still in production?

[@z06king]

Richard, why, how does the Early LS1 make more power at the crank than my 01 LS6 in my Z06? (385/385)? thank you. BTW, heading for teh Big 3 install after 20 years beating on this beast.

[@cooperbeats9620]

Numbers are most likely underrated from factory

[@travisblack417]

These numbers are with headers and a tune. Your ls6 will make well over 385 on a dyno without factory exhaust manifolds etc.

[@6digitz]

The dyno picture also shows an electric water pump and no accessories being driven. Your 385 HP is calculated with all accessories, including mechanical water pump, attached.

[@alloyspeed1889]

Did the heads come with better valve springs? I would think the power would drop off sooner if they didnt.

[@Compcams1976]

Yes, we have a couple spring options on those heads! Check our social media for a post soon going over more of the details!

[@Beer_Me]

Good info. I ordered a 1999 LS1 for my 02 ram 1500 and im wanting some scoot out of it

[@chrisbryant1657]

Where did you find a new LS1 crate engine?

[@shaneshane1379]

That's a good one..

[@alexandermcdole8464]

This is Old, But how is a 227/235-565/579 110 LSA cam in a 5.7 ls1?

[@maroonsn95]

Those specs aren't far off from the Tick Torquemax Stage 2 cam. I have that cam in my C5Z and it put down 430/411 with the stock ls6 heads and intake. It's a great all around cam and it's awesome on the street.

[@alexandermcdole8464]

@@maroonsn95 Thanks

[@alexandermcdole8464]

@@maroonsn95 Thanks for the info 👍

[@dennisrobinson8008]

@@maroonsn95 What a monster...

[@TheHuggmg]

Those numbers should possibly be divided by a range of 1.12-1.20, which accounts for a 12-20% drivetrain loss. This gives a slightly more realistic number to potential RWHP. Example: 539 ÷ 1.20 = 449 539 ÷ 1.12 = 481 So there's a 32 hp difference, let's meet in the middle and say 16 hp and add it to 449 so that put it around the range of 465 RWHP. Obviously I'm not an expert but there's a pretty wide spectrum however I've heard many people being around the 450 RWHP range with Heads, Cam, Intake and a good tune on a 346CID LS1. As well, always remember if you switch out your rear differential for a heavier setup it will increase your drivetrain coefficient as it's more rotational mass the engine has to turn while transferring power to the ground.

[@Chris-Rife]

Speaking of drivetrain. I am wondering how long T56 will hold up to 540 to wheels.

[@dennisrobinson8008]

Yea 460 to 470rwhp and 410 rwtq

[@smee8721]

Don't forget. Heads, Cam & Intake

[@ObsTurdBucket]

When did nosferstu learn so much about engines?

[@mwhiteside1541]

Did you use the stock fuel injectors?

[@jagisss]

What size injectors were used? I assume the stock would max out. I'm interested in all the details missing from the video.

[@LaserLuther]

Probably 32/36 pounders. Texas speed has some decent deals on drop in injectors. Stock 01-02 injectors will make it close to 400 wheel. Some guys use the supercharged 3800 injectors for a little more.

[@TheHuggmg]

I would actually opt for a slightly higher lbs injector for about the same price or slightly higher...say a 42 lbs or 48lbs injector to reduce the duty cycle on the Injectors (I believe optimal duty cycle is around 80%). More food for thought isn't just exceeding factory Injectors but adequate fuel supply so when running a Heads, Cam and Intake setup always be conscious of the factory fuel pumps limitations. Factory LS'1s had a 190 Lph so around the 450+ range you could be tapping out the pump. I recommend upgrading the pump to a 250Lph so you'll be fine till the 550rwhp range. Hell, might even consider a 340Lph if yiu have bigger build plans.

[@AndrewMitchell001]

how did you get 418 hp out of a stock ls1 when they were 305-350 hp depending on which year it was

[@krisnajdala6512]

engine dyno is my guess

[@AndrewMitchell001]

@jdala6512 315hp is the at the flywheel HP of a stock LS1 to get 418 hp you need a camshaft and ported heads pretty much.

[@juanvillanueva5187]

So this be 539 hp at the crank correct

[@masterz28]

yeah this isn't a chasis dyno

[@dennisrobinson8008]

Yeah, 539HP at the crank, or a little over 450rwhp stick and 405rwhp auto. So enough power to play with the big dogs today...

[@19MadMike95]

Since when do stock LS1s make 400+ hp stock? What?

[@chill_chewy]

Hey richard, was curious if anyone’s actually ran the small bore ls3 heads, im trying to use them on my 383ci but haven’t found many people who actually ran them. You ever test them on a 5.7 ls1?

[@chadvaillancourt5586]

Great video. Lots of karate chops.

[@armedrepublic]

Do you have a link to the heads that were used? I can't find them. Curious about the flow data. Thanks

[@Compcams1976]

These heads are debuting at SEMA and will be on the RHS Website soon!

[@armedrepublic]

@@Compcams1976 thanks for the info and the quick response!

[@crazysvt03]

Was there ever a test done with the rhs small bore ls7 heads ?

[@joshdeluca6352]

What kind of ls1 Makes over 400 stock??

[@Compcams1976]

Engine Dyno. To convert to Wheel HP, generally factor in about a 20% drivetrain loss, which would put you at 331hp.

[@ls1atoschak]

Shhhh it’s still a secret

[@stephenhodge6441]

@@Compcams1976 we get that. But the ls1 didn't come out with that much horsepower at the flywheel.

[@richardaugustine1842]

Ls1 had dyno headers ,no cats free flow exhaust no accessories no restrictions in intake flow fast efi that's why it produced more power I'm guessing

[@Compcams1976]

@@richardaugustine1842 Correct! These engines are tested under optimal conditions, whereas factory numbers require accessories and emissions parts.

[@drcolster]

That early Camaro engine is great... i have a C4B Callaway and thats only 400 hp with all His upgrades...

[@timpoole4487]

I think im going to go buy HEADS, CAM, AND INTAKE! 🤷‍♂️🤦‍♂️

[@inglando]

100hp LT headers. Cool

[@alexmcdole4190]

I wonder what's at the wheels with this set up.

[@cfmechanic]

Depends on transmission, stick will be near 500 auto depends lock up or not on average -100 for auto with high stall

[@itzsaggy2225]

Please do reviews of this on a L83

[@jordanmcdonald2589]

Is there a link for the RHS heads used here?

[@abrahamcruz8472]

What about the 4.3

[@GrandAmGTTT]

over 400hp on a stock untouched ls1???

[@Kern_Media]

on a headers exhaust ls1 .. but still bullshit theres no way it made that much with those bolt ons

[@antonio_ws6]

@@Kern_Media probably crank, without accessories and drivetrain loss

[@MikeJones-bi3zl]

@@Kern_Media i was thinking the same total bullshit im longtubes full bolt ons tune making340hp

[@Kstang09]

At the crank. No accessories, electric water pump, LTs, no cats. Yeah, north of 400 at the crank all day.

[@blakerobinson8]

Is this CARB legal?

[@brendahensley2015]

does fast have any new products for 2019 SEMA show

[@raymond80hr]

is this the only cam that you can get. same cam in all the videos

[@Compcams1976]

This round of testing was all done with the same motor, hence the repeated cam test.

[@petebeat1510]

How hp much power do you think that would be at the wheels?

[@andrewcollogan9385]

450-460

[@TheHuggmg]

Those numbers should possibly be divided by a range of 1.12-1.20, which accounts for a 12-20% drivetrain loss. This gives a slightly more realistic number to potential RWHP. Example: 539 ÷ 1.20 = 449 539 ÷ 1.12 = 481 So there's a 32 hp difference, let's meet in the middle and say 16 hp and add it to 449 so that put it around the range of 465 RWHP. Obviously I'm not an expert but there's a pretty wide spectrum however I've heard many people being around the 450 RWHP range with Heads, Cam, Intake and a good tune on a 346CID LS1. As well, always remember if you switch out your rear differential for a heavier setup it will increase your drivetrain coefficient as it's more rotational mass the engine has to turn while transferring power to the ground.

[@mickpolak]

And cost?

[@Mianhuaquan]

I had it muted but could still hear his hands

[@Matthewzilla]

LS1 with heads cam and intake will run 550hp. Throw in some dome pistons and you’ll grab another 20hp. If you’re losing 110hp getting to the tires, you got big problems.

[@meryjaneturbo3043]

stall converter?

[@andresgonzalez2534]

is the hp to the crank or to the wheels?

[@NosLaser]

The tests were performed on an engine dyno so not sure how they'd measure horsepower to the wheels. It is crank hp.

[@josephbliskowski2759]

Too much with the hands 🤣

[@matty3198]

heads CAAAM intake

[@erok3738]

How do you get 414hp from a stock ls1?

[@dennisrobinson8008]

Long tube headers and computer management. The Vettes back then made 350-360HP at the engine. Replacing the log style manifolds for long tubes and a tune could give 50-60HP.

[@radfish4161]

You still gotta push that extra power thru the 1998-2002 Camaro/TransAm 7.5" stock diff....

[@KingJT80]

I've seen 7.5s last behind a 5.70s 1/8 mile gbody Definitely wasnt stock. 434 with spray and slicks.

[@5kwattz]

They stopped selling these rhs heads, can't find Dem nowhere.

[@ChefofWar33]

They make better ones.

[@chrisberg2083]

This guy reminds me of Ross Perot

[@louisward3654]

I can't handle listening to this guy

[@raydemarco427]

Thank you for this video! Can you guys give a recommendation for heads and cam with a FAST 92 intake and throttle body? I have the FAST set up with SLP exhaust. Stock 2000 LS1. What do you recommend for heads and Cam?

[@Compcams1976]

The new RHS Pro Action Cathedral Port heads sound like a great option! For a cam recommendation, give us a call or send us an email so we can help you make the best decision possible!

[@pantherz2010]

Ray DeMarco did you go with anything yet? i was going to go from the stock 241 to the 799 /243’s !

[@raydemarco427]

@@pantherz2010 hey I didn't make any purchase yet actually still in Afghanistan for a bit. The Camaro is in the shop getting paint while I'm away. I'll try and keep you posted. So 243s/799 are pretty good option? I was reading online they are a good option even better than 241s that are worked

[@freddysalazar1757]

Why not 243 heads?

[@wkeil1981]

Ls1 isn’t a true 350. It’s actually 346ci

[@michaelcuoco3204]

Ok Richard I got it even though my heads are ported freshly machined bottom end h beams and 11 to 1's still missing the intake the early model fast smart injection and the performer what get that magic number of 500 ,,,,but until I can go back into it ,,,it will be a fun strong running motor ,,,,,,sorry for the questions ,,and you've told us all about the big three many times ,,I thought I had it ,,,so i'm Happy and Thank you again ,,,you to kooL ~! SiR

[@akoust1c]

And here’s how you order

[@zacharyclausen7684]

I wanna see what car this guy drives 😂

[@wayne007nz]

thats a lot of money for 125hp ( parts,labour,tunning)

[@justinpriola7745]

Gotta pay to play

[@OGbqze]

True. I would've just stuck a simple cam in and enjoyed it. Done.

[@justinpriola7745]

Bob Button I’m H / C / I and have no regrets. I think it was pretty smart. I also did all of the work so I don’t have to pay for labor and my friend is a tuner so I’m good 😂

[@shon9kemp]

I would like to see what that gets on a 5.3

[@hendo337]

A 5.3 with the same upgrades would make around 500hp.

[@hendo337]

With stock heads and a 238/242 Magic stick 3 cam, headers, you also get 500hp.

[@DutchZombieSlaya]

How come a stock LS1 made 414 on the dyno? shouldn't it make around 350?

[@zerotolerance5581]

This was exactly my thought. I had a 2000 Trans Am with an LS1. During that time span, the factory power was 320 hp. That should’ve been between 280 and 290 on the dyno. And I’m being generous there.

[@DutchZombieSlaya]

@fuktheserbs the 350hp from the LS1 is crank already.. if you dyno a C5 it'll have like 300whp (roughly). Thanks for the comment though, yet i'm still confused. If the LS1 makes 414 crank, then a C5 would make loads of power on the wheels

[@travispfannmuller7717]

Factory tests with all accessories, intake, exhaust, and tailpipes as equipped in the vehicle. This is optimized tune, 140 degree water, electric water pump, open exhaust etc.

[@dennisrobinson8008]

Long tubes and tuning. The Corvette had the 346ci making 350-360HP back in the day.

[@dennisrobinson8008]

@@DutchZombieSlaya Long tubes replacing log style manifolds and crappy exhaust on a 350ci motor will give around 50HP. He also has aftermarket computer for tunability, so the A/F and timing was dialed in even more than stock.

[@Luke-qp9fd]

125 horsepower for about 4 or 5 grand. Mmm 🤔

[@wydopnthrtl]

I'm thinking the same thing. And you have to rev it to get that power too. Considering that most of us retail buyers would have to add fuel pump, injectors, MAF sensor, custom dyno tuning, and have to live with that big cam at low rpm driving... the cost for this is knocking on the back door of a new SC kit w/intercooler.

[@zacharyrussell6983]

To be fair, you could save money and run a ported 243 head and make identical power. I have pretty much the same set up with a Fast 92/92 and Cartek 243 heads. Made 467whp M6 through a 9".

[@zacharyrussell6983]

@@wydopnthrtl and your car at similar power with the supercharger will be slower. Considering the added weight of the blower, then heat soak when running it over and over.

[@ChefofWar33]

​@wydopnthrtl Indeed. I've always been interested in videos like these before I actually got my C5 corvette. But after driving it for a few weeks on the street, I've noticed that I rarely EVER rev it past 5 grand. And most of these mods don't even kick in until then. Meh, I'll pass.

[@alexhicks9656]

All I seen is 430 to the wheels h/c/I

[@coopernallo8910]

Would you have to do the pistons if you do those 3??

[@Thrxxx]

No

[@raybusa6086]

This gets me nervous with his hands moving all the time...make me want to throw down with this dude

[@wakjob961]

Good luck with all that...dude has a heavy bag in the backyard.

[@Lu-e]

Big power but the reliability sucks. Seen a lot of LS1’s blow up or spin a bearing

[@bhcamaro2002]

Depends on who tunes it as well. If they don't know what they're doing or just going for max numbers there will be a consequence. My tuner has fixed so many issues from previous tuners doing that exact thing.

[@sonnysequi7723]

Rhs don’t make these heads anymore

[@Stinky_G04t]

These head don’t exist anymore

[@chevrolet355]

Thats alot of money to gain 125 hp. Ya could have probably turbo it for half that and make double the power

[@brendanpadilla911]

bruh

[@ChefofWar33]

You can't just find the price of a turbo on the internet and think that that is what a turbo system costs to install on your engine. It take some serious fabrication skills to do a turbo system in a Vette/Camaro and make it look good and keep fitment of the hood. In fact, it's one of the hardest mods you can do to your engine bay. You are far, FAR better off getting an A/A Supercharger system for 8k and its a simple bolt on with no fabrication skills necessary.

[@chevrolet355]

@@ChefofWar33 you can buy turbo kits for all sorts of cars.

[@ChefofWar33]

@@chevrolet355 Indeed you can. Installing them on the other hand... Well that requires knowledge, tools and time i dont have. Some cars are super easy to to. While my particular car, the C5 Corvette is one of the hardest out there.

[@bmmask5806]

stock ls1 with 418 horsepower 😂😂😂😂😂 such a Liar

[@m.2038]

He probably means hp on the flywheel not rwhp

[@bmmask5806]

@@m.2038 i know its impossible to reach more than 360 with stock ls1 even with a good tune if you search in google you will find that a stock ls1 will have about a 340 hp on the flywheel In the best case i dont know where did the 78 hp come from😂😂😂

[@keithgomes8835]

Its on an engine dyno with no accessories, no air filter, long tube headers, no cats and an optimized tune.. Easy 400+ .. Most ls1 where underrated

[@brandongarner2069]

Stock ls1 making that much power?🤣 its a reason you didnt show the dyno footage and graphs. Smh

[@abbas674]

Ls1 pistons melt at 500hp

[@Actionanimalranch]

Really eh

[@chrisbryant1657]

BS

[@abbas674]

@@chrisbryant1657 stock ls1 pistons won't last long making 500 or more you need forged pistons

[@chrisbryant1657]

@@abbas674 Mine have. 98 z28 Camaro LS1. Still original slugs!

[@abbas674]

@@chrisbryant1657 yeah a stock LS1 does not make 500hp a 98 LS1 makes about 250 HP the 2000 LS6 is also a 5.7 that one makes about 350 due to the heads and manifold