Thanks for another great video- one more vid for 5.3L 'LS' library. As always, we appreciate your efforts & the service you provide to the auto-enthusiast community.
Man, are we spoiled nowadays or what? Your stock LM7 cam makes more than 350 hp. Think of what it took to get an honest 350 hp out of a 1967 327 Chevy. Great job showing what a cam change will/will not do. As always, a lot of work and a lot of information crammed into 11 minutes of content.
@@HioSSilver1999 That was advertised HP. With an iron manifold and a Q-jet, the L-79 struggled to make it. Look what it took to make an L-76 or an L-84 put out their respective numbers. L-79 still one of my favorites, though.
I watch your videos from time to time but now its a bit more impactful as I think I will finally be pulling the trigger on an LS swap for my hotrod. Plans are mostly stock but intake, cam and headers are likely the only big upgrades not counting any supporting upgrades like springs and such for the heads. And the largest reason for wanting to swap the intake is for the look, that big plastic thing isn't exactly appealing and to just be rid of anything unnecessary. Might even go with a carburetor intake and run a Holley sniper efi or similiar for that more traditional feel. Idk yet.
In for all of the - "But Richard, what about this? And what about that? comments. This is me thinking out loud... 1. That Crane 200 duration cam - I feel like a factory LQ4/LQ9 cam would make almost identical numbers. 2. I love that old Crane 224/232 cam - I have a version of it that I had Comp grind on XER lobes. I'll be testing that in my LQ4 swapped Silverado soon. 3. Thank you Richard for the plethora of camshafts compared in this video. Great data as always.
Install notched pistons and try more overlap (106, 107, 108) installed 4 degrees advanced and earlier intake valve closing. I know more overlap hurts drivability, but makes more power thruout.
I just worked on 5.7 with a crow 1289 cam 236/254 on a 113 lsa,Higgins cnc ported heads I believe the lift is like 613/610 or something like that damned thing made 515hp at 6500..it's my new favorite ls cam.
The Summit stage 4 cam is very similar to the custom cam in my 6.4L 394Ci stroker in my Ram. Mine is a 233/246 112 +5degrees of advance, with 6.4l intake manifold, & 3,600 high stall. Didn’t want to go bigger on the intake duration because I wanted a really solid driving truck on the street.
Whats crazy is I did a 4in stroke to mine and even with the slightly bigger of the cams listed. That stroke caused the engine to make more tq than hp. I think the extra stroke combined with the restricted almost stock 706 heads shifted the max airflow to occur at under 5252rpm.
@@justinturdeau2383 it was on chassis Dyno in a 04 Tahoe with heavy tires and 4l60 so numbers aren't comparable and low. But still, it was 345 lb ft@4500rpm and 314 hp @5100rpm. Best part is I wanted towing and that's what I got. It has 300lb ft at 1700rpm and starts increasing slowly at 2k RPM until it plateaus from 4k-4500. So awesome towing power considering it's all right away.
@@DoyleShadduck You clearly don't understand hp numbers. This was at the tire without correction not some false stat gm gives out. GM inflates there numbers. stock on the dyno behind 4l60 is around 285-310ftlb at 4000 with a set of headers.
I've got a 5.3 I'm trying to run in a 3rd gen camaro. These videos have been awesome and so bad for me at the same time. It's great to see what can be done but I keep thinking more is going to be better. But I honestly think the truck norris cam is my best bet for overall in this car
Thank you for all the information Richard. It is almost like a premium automotive magazine before the internet killed them, but in encyclopedia form with all possible information on the subject.
I've been watching videos on 5.3's because I thought the 09 Sierra 1500 sle I bought from my dad had an LMG 5.3 (according to vin decoder). Come to find out my younger brother burned up the motor in 2019 and the only thing he could find quickly was a 6.0 that was supposed to go in an 09 Sierra1500 HD, but was a factory reject because of wrong angles on the cylinders. The machine shop my brother got it from buys these rejects and bores and sleeves them. I've determined it's not flex fuel and has 862 heads. So I'm 99% sure my Sierra 1500 that I paid $5,000 for has a YL6 with less than 80,000 miles on it that had been sitting in a shop from 2010-2019. 😃 I wish the block casting numbers were in a more convenient location!
In your cam shootouts, will you please start adding cams that are obviosly too big? Even the biggest cam here wasn't down on power compared to stock at 3000 rpm. Comments on idle vacuum would be helpful too. Love your content! Keep em coming.
Also, the 3000 rpm numbers on these graphs don't mean much, because that is the load in point. There is a major difference in the down low numbers of these cams, you just don't see it on these graphs
@@robertwest3093 because a dyno can only measure about 3000-3500 of rpm range. So if they started the pull down at 1500 then it’d only test up to about 4500rpm~ well below the power peak(s).
@Richard Holdener Richard, love your videos but you're hard to follow. Descriptions are all caps, no model or part numbers posted. The stage 4 summit cam is no longer available, there is an alternative available that is close enough. A couple extra mins segmenting your videos and adding a true description with items/parts used in the video would go a long way.
Im stuck between the BTR stage 2, the truck norris and the tick performance towmax stage 2 214/224 | .571"/.561" | LSA114+4. Truck is a daily driver that sees some off road and snow, plus pulls a bass boat.
I dont see much about a cam that improves off idle to 3000 where a truck will operate most often as a diesel operates ? This is whats needed by a lot of people. A cam that closed the gap vs a diesel.
@@The8ball365 I dont think that tow max max cam would come in as quick as a truck Norris or chapacabra cam since its on a 114 ls a vs the tighter ls a of the 2 i mentioned and wont have as much tq either due to building less psi of cyclinder pressure with the 114 ls a.
Didn't see the hot rod cam HP and tq? Great video showing the good stuff. Iirc all gen 4 5.3 have the flat tops anyway so I'm trying to go that direction or at least grab the bottom end out of one
How much would it run in a dollar amount to modify a 2016 5.3L v8 1500 Silverado extended cab that has a k&m cold air intake, borla catback exhaust Y, Tuned, and a throttle response ob3 plug in, to make 425-550 hp? Not including installation/labor fees, simply just the parts to accommodate this much horsepower. Then, what exact parts/part #’s would you recommend to ultimately reach that number and could you provide me the links or options to find the best parts to reach that number of HP? Thank you, Richard.
I have to wonder if the average custom truck or hot rod owner could even notice some of the small incremental gains on these cams? Obviously, 100 HP is going to register on the seat-o-pants dyno. But, 10 or 20 horsepower is most likely not even detectable when out cruising on a Saturday night. So basically when replacing a stock cam, it seems you need to at least throw in a stage II to see any significant improvement.
Hello Richard I appreciate the video curious how a summit 236/246 .612/.612 110 summit says this cam works and has good valve event characteristics and helps with 110 lsa but I’m worried about piston to valve clearance with 862. What’s your opinion should I run it?
___ Ok ... I was at a friend's house yesterday and he is in the process of putting together a 5.3... long behold he had a camshaft kit there that he purchased from one of the Chinese apps.. crazy enough to say that the camshaft came in a BTR box. The camshaft pushrods valve springs with valve seals. All for under 200. I would like to know if these camshafts are authentic. They looked identical to the one that I have. I have a BTR in one of my motors and this Cam that he has looks pretty much identical like mentioned even came in a BTR box. But will it hold up? Is the steel the same quality? The price was less than half of what I paid for mine.
@richardholdener1727 wow Richard I wasn't even expecting you to answer me.. Thank you very very much. Happy New Year to you and your family. Wishing you the very best always. I'm happy to know that I didn't go to the cheap way then. Wait till I give him the news LOL. The crazy thing is it's in a BTR box. China is really doing people dirty
@@richardholdener1727 what’s the best cam on the market for a 5.3 in a 3700 lb car , 3.42 gear , 4L65E trans, headers, duals , stock converter , stock 2005 5.3
When picking a stall for the cam, the camshaft manufacturers state to use for an example a 3500 stall but the cam has an operating range of 2500-7000, could use use a 2500 or 3000 stall, maybe somewhere in between or are there still underlying issues?
I have a 01 rcsb truck with the Lm7 I’m full bolt on (long tubes, tbss intake manifold S&b intake) I also have injectors and a 340 E85 fuel pump. I wanted to know what cam you would go with to get the most horse power NA I also want one that would need a torque converter to make that jumó too
Power up to 3500 rpm was not very different from the smallest to the largest cam. This is probably the truck intake manifold dominating the midrange with its runner length. Were all the tests run with the same type of manifold?
@@richardholdener1727 so from a 9.5.1 to a 9.6.1 is 3-4% Is that correct ? Have ton done any controlled tests with that, or is it a major pain to do such controlled testing?
@@taraszakordonskk57319.5 to 10.5 would be a 3~4% increase. Compression makes your motor more efficient, which is where the power increase comes from. You'll also see better fuel mileage, although if you go up too high you need higher octane fuel (if you run WOT).
Richard Holdener Will you do a lm7 engine Builds using 3.80 bore 6.128 rod length and 4 in stroke , 3.80 bore with 4 in stroke stock rod length , I want to know what the difference will be Using 706 heads truck norris cam ?
My trucks an everyday driver, 66 Chevy, work truck, haul wood, pull a 16' utility trailer. I'm about to do an LS, probably 5.3. Will the BTR Truck Norris do good on hauling firewood out of the woods, but haul Asspine at the top side? Add the eBay headers, maybe some 30-33lb injectors? It's a 3:73 rear.
I put a COMP Cams XFI RPM Cam in a in my neighbors 2005 Escalade, it felt like a substantial gain together with MagnaFlow 3" street series Cat-Back exhaust system and S1000 Diablo Sport AFM Module. it has 228 Intake Duration at 050 inch Lift and 230 Exhaust Duration at 050 inch Lift.
So i have a 5.3 vortec with 706 heads that im porting, but i was wondering what the biggest cam i can run is without cutting pistons bevause i wanna do stock pistons and gen 4 rods. Please lmk thank you! Will run pac 1219 valve springs depending on lift that i can do
best cam to make the most hp on a stock 5.3? also doing injectors and will be on nitrous so didnt know what cams were meant to be naturally aspirated and which werent
Richard, I know this is an older video but still waiting for you to go back and do the LS6. Camshaft, since the last test you did on it seized up inside the 5.3 and you felt it was an accurate on power gain. That was quite a while back. Any idea of when you going to retest the ls6 camshaft in a 5.3? Patiently waiting for that.
Hi Richard I’m building a Gen 4 5.3 so with flat top pistons and I have 799 heads milled 20 over with 660 lift springs and stock valves with BTR 7.400” pushrods and ls7 lifters. can I run the BTR hot rod cam without piston to valve problems?
Awesome! I'm still stuck on choosing a bigger cam the vehicle is a 2007 chevrolet silverado 5.3. I currently have a BTR stage 2 truck cam 212/218 .553"/.553" 111 LSA with .560" springs and PRC 220cc cast heads, 4.11 gears, 3400 triple disk converter, 1 7/8" LT headers, the truck makes 370 RWHP I was looking for a cam to push it closer to 400 do you think the MADD MAXX cam would be a good option? Or change to a high-lift cam?
I agree, it was surprising to me. It was done on a Dynocom it made 369.3 hp at 5,550 rpm and 367.9 Torque at 4,700 rpm I also have a LS3 ported throttle body and my truck intake manifold ported. I'm definitely thinking about the stage 4 summit cam now.
Richard, have you done any tests with LS cams that advertise a lower starting Rpm band, like the Comp 54-424-11? The operating range is 1400-6700. Curious, as my rock crawler doesn’t typically hit those high rpm numbers.
@@richardholdener1727 well, that’s unfortunate. 🤣. I’m running that cam I mentioned, pulls good and will still rev out if needed. It has similar specs as couple of cams you ran in this test.
not my first rodeo-how do you think your 212/218 cam with 550 lift compares to the 212/218 cam with 550 lift that was used in the video? It will do what that cam did
@@richardholdener1727 i definitely think it very comparable, although I hand ported the stock heads and run an LS6 intake….which I know is not good for low end power, but wanted it to keep my hood line lower and it looks better than truck intake 🤣.
You Happen to have a ms4 cam laying around over there. We have ran that cam in multiple stock 5.3’s and seem to work very well pretty rowdy cam. 239/242 .649"/.600" 111.5 LSA. Would be curious to see how that cam would do against others
Question for all .I have a 4.8 bored out to 5.7 LS1 bore size with LS1 pistons .what affect will the big bore have on it the torque and HP .it's all together .comes out to a 5.1 liter
@@richardholdener1727 what I'm getting at will there be any advantage of having a bigger bore and 4.8 stroke .rather than bigger stroke of a 5.3 and similar cubic inches .
there will be no gain from the bigger bore until you get very high in the power level and can take advantage of additional airflow that might be possible from the change in bore size, that might not happen until you reach 600 hp or so
Hi Richard, I'm an Automotive Instructor for Job Corps and I teach tuning. I have an extreme amount of dyno training but for the IM240 program from Colorado/California. It seems to me that lobe ramp rate, location of opening / closing on the degree wheel and LSA have greatest effect on Vacuum at low rpms as I know you know. We are an emissions state and many people want to use their Vacuum boosters without going Hydroboost. In Washington State, we are allowed to modify but HP and Torque numbers can only help so far. I've been watching the videos looking for vacuum on your control panel screen during your dyno runs but trying to see them at idle is tough because the video is typically about above 2K rpms. Great videos BTW. Keep up the great work and videos! My students love them.
@Richard Holdener hi 👋 Richard hay I know you where doing 5.3 V8 I'm hoping maybe you could try those same cams 4.3 V6 and the LV3 4.3 V6 I just thought they could benefit from 1 of those cams anyway thanks for listening.
@richardholdener interested in the truck norris cam for my 04 tahoe z71 with the l59 engine. What torque converter you think will go good with that cam? Daily driver i like dogging it at stop signs sitting on 33x12.5 x22s
Hey Rich... What's the max bore 5.3 cast iron ,and have you heard of a 4.0 stroke 5.3 383 cube 5.3 looking to fix my 07 Tahoe. Thanks. I'll keep watching
if you used the same heads,manifold,exhaust,etc.... and did the same cam, say the stage 4 cam, what kind of hp difference could you expect from just changing the 5.3 to 6.0 everything else the same? im guessing about 1.25 hp per cubic inch.
Depends on your application.... roll racing and ringing out rpm... top end power is valuable..... I shift my bolt on stock cam ls3 at 6500 but it wants more
Interesting that the TN and BTR stage 2 cam have the same lift and intake duration, but the tighter LSA equated to more peak hp and tq, and started making power ~1700rpm sooner. In fact, the TN cam made more hp and tq than the next 218/224 on a 110 cam. I wonder why more LS cams don't have tighter LSA's?
Sort of. On a cam if you shorten duration with same lift you increase stress on parts and the spring requirement goes up. So yes - that might be what he did - but there is always a draw back.@@KNS_Racing
Can we do the same for the 6.0 Best 8 cams I copied your 6.0 btr stage 4 came But now it's time for a new project... I love btr but what else is out there 65 impala coupe ss Going big rims Looking to cruise Burn rubber and be snappy at the light when the pedal is applied 😅
Thanks for another great video- one more vid for 5.3L 'LS' library. As always, we appreciate your efforts & the service you provide to the auto-enthusiast community.
Man, are we spoiled nowadays or what? Your stock LM7 cam makes more than 350 hp. Think of what it took to get an honest 350 hp out of a 1967 327 Chevy. Great job showing what a cam change will/will not do. As always, a lot of work and a lot of information crammed into 11 minutes of content.
Old 327s made that same power with a oe flat tappet hydraulic cam. They did have 11:1 compression tho
Rich tested a 327 in virtually stock configuration that made 356hp @ 6100rpm. Again, it’s at 11:1 compression instead of 9.5:1.
@@HioSSilver1999 That was advertised HP. With an iron manifold and a Q-jet, the L-79 struggled to make it. Look what it took to make an L-76 or an L-84 put out their respective numbers. L-79 still one of my favorites, though.
@@merylpelosi8485 he's tested them...they're comparable.
Ok, lm7 what's a good cam before you have to add mods to the engine, like new fuel rail ,pump and heads.
Thank you Richard for including the broader dynochart starting below 2000rpm!
Do you have a video with the gm hot cam being testing in it?..
Perfect timing. I have 11 min left on a read of a 3rd gen Coyote ECU. Moar cam tests!
it does take a minute to flash those
Was actually so happy to see this since I’m planning on running a BTR Stage 2 camshaft from an AFM delete kit on my 16 Yukon
I watch your videos from time to time but now its a bit more impactful as I think I will finally be pulling the trigger on an LS swap for my hotrod. Plans are mostly stock but intake, cam and headers are likely the only big upgrades not counting any supporting upgrades like springs and such for the heads. And the largest reason for wanting to swap the intake is for the look, that big plastic thing isn't exactly appealing and to just be rid of anything unnecessary. Might even go with a carburetor intake and run a Holley sniper efi or similiar for that more traditional feel. Idk yet.
I sold a .02 over 5.3L with a stage 3 cam from Summit. It went into a Mustang!
In for all of the - "But Richard, what about this? And what about that? comments.
This is me thinking out loud...
1. That Crane 200 duration cam - I feel like a factory LQ4/LQ9 cam would make almost identical numbers.
2. I love that old Crane 224/232 cam - I have a version of it that I had Comp grind on XER lobes. I'll be testing that in my LQ4 swapped Silverado soon.
3. Thank you Richard for the plethora of camshafts compared in this video. Great data as always.
Install notched pistons and try more overlap (106, 107, 108) installed 4 degrees advanced and earlier intake valve closing. I know more overlap hurts drivability, but makes more power thruout.
I just worked on 5.7 with a crow 1289 cam 236/254 on a 113 lsa,Higgins cnc ported heads I believe the lift is like 613/610 or something like that damned thing made 515hp at 6500..it's my new favorite ls cam.
I think these videos should have vacuum readings! Very important for power brakes!
Hydro boost fixes that problem
Love the way you explain things that a normal sober person can understand! Lol thanks!
The Summit stage 4 cam is very similar to the custom cam in my 6.4L 394Ci stroker in my Ram. Mine is a 233/246 112 +5degrees of advance, with 6.4l intake manifold, & 3,600 high stall. Didn’t want to go bigger on the intake duration because I wanted a really solid driving truck on the street.
And your telling us this because..........
No body cares bout ur ram ham this channel is bout LS engines brah so stick to ram ham channels. LS 💯 always!! Rams dodges suck ass
I appreciate all the work you put in.
Whats crazy is I did a 4in stroke to mine and even with the slightly bigger of the cams listed. That stroke caused the engine to make more tq than hp. I think the extra stroke combined with the restricted almost stock 706 heads shifted the max airflow to occur at under 5252rpm.
What are the numbers?
@@justinturdeau2383 it was on chassis Dyno in a 04 Tahoe with heavy tires and 4l60 so numbers aren't comparable and low. But still, it was 345 lb ft@4500rpm and 314 hp @5100rpm. Best part is I wanted towing and that's what I got. It has 300lb ft at 1700rpm and starts increasing slowly at 2k RPM until it plateaus from 4k-4500. So awesome towing power considering it's all right away.
Stock 04 Tahoe torque is 400 ft lbs @ 4,000 rpm. That worse than sucks!
@@DoyleShadduck You clearly don't understand hp numbers. This was at the tire without correction not some false stat gm gives out. GM inflates there numbers. stock on the dyno behind 4l60 is around 285-310ftlb at 4000 with a set of headers.
I've got a 5.3 I'm trying to run in a 3rd gen camaro. These videos have been awesome and so bad for me at the same time. It's great to see what can be done but I keep thinking more is going to be better. But I honestly think the truck norris cam is my best bet for overall in this car
I'm building my first LS based on your knowledge. Thank you!
Thank you for all the information Richard. It is almost like a premium automotive magazine before the internet killed them, but in encyclopedia form with all possible information on the subject.
Thank you for your time and effort to bring us this information
You're a life saver. Thanks for doing the work for us man. I'll know what to build now.
I would love to see a Dyno shoot-out of the 3.8 V6's Buick, Chevy, and Ford to see which one makes more power
Geez, that S4 Summit cam was pretty respectable on the bottom end against the stock cam. I wonder if the Katech-ported heads propped that up at all.
I can guarantee the heads alone were worth at least 20hp.
I'm running an LJMS 237/245 .610" 116 LSA on my SBE L33. No clearance issues using LS9 gaskets, shifts are at 8300.
I've been watching videos on 5.3's because I thought the 09 Sierra 1500 sle I bought from my dad had an LMG 5.3 (according to vin decoder). Come to find out my younger brother burned up the motor in 2019 and the only thing he could find quickly was a 6.0 that was supposed to go in an 09 Sierra1500 HD, but was a factory reject because of wrong angles on the cylinders. The machine shop my brother got it from buys these rejects and bores and sleeves them.
I've determined it's not flex fuel and has 862 heads. So I'm 99% sure my Sierra 1500 that I paid $5,000 for has a YL6 with less than 80,000 miles on it that had been sitting in a shop from 2010-2019. 😃
I wish the block casting numbers were in a more convenient location!
LY6, but yeah… sounds like you got a great deal!
RICHARD we need a late EFI ford 460 buildup to compare to the 454v496 video you posted the other day!!!!
In your cam shootouts, will you please start adding cams that are obviosly too big? Even the biggest cam here wasn't down on power compared to stock at 3000 rpm. Comments on idle vacuum would be helpful too. Love your content! Keep em coming.
He said that the biggest one in this test was probably the biggest you could run with stock piston to valve clearance.
Also, the 3000 rpm numbers on these graphs don't mean much, because that is the load in point. There is a major difference in the down low numbers of these cams, you just don't see it on these graphs
@@mikeday8826 and these low end numbers are important if it's a daily driver. I don't know why dyno operators don't start the pull down around 1500.
You know the LS is a beast when a stock cam with less. 050 than the gen 1 993 cam puts out over 350 hp!
@@robertwest3093 because a dyno can only measure about 3000-3500 of rpm range. So if they started the pull down at 1500 then it’d only test up to about 4500rpm~ well below the power peak(s).
Take a request ? Looking to see what a Howard’s cans rattler would do in a stock lq4 and a ls1.
Thank you for your Service, Sir.
Excellent work again
That's cool, let's keep posting cams we can't get and no longer available to purchase.
TN IS STILL IN PRODUCTION-BUT OBVIOUSLY YOU MISSED THE POINT OF THE DISCUSSION AND HOW THESE RESULTS CORRELATE TO EVERY CAM
@Richard Holdener Richard, love your videos but you're hard to follow. Descriptions are all caps, no model or part numbers posted. The stage 4 summit cam is no longer available, there is an alternative available that is close enough. A couple extra mins segmenting your videos and adding a true description with items/parts used in the video would go a long way.
thnx for the constant negative feedback, always appreciated, maybe these vids aren't really for you
@@richardholdener1727 Apologies if I had offended you.
Please please please do this for a Hemi, along with a comprehensive intake manifold test
Donate him a hemi the intake and all I'm sure hell do it those engines are expensive to buy from junkyard so are intakes and other parts ....
Thanks for the great video, compelling evidence and a great guide for selecting a camshaft
Im stuck between the BTR stage 2, the truck norris and the tick performance towmax stage 2 214/224 | .571"/.561" | LSA114+4. Truck is a daily driver that sees some off road and snow, plus pulls a bass boat.
Think stage 1 in your case. TN if you don’t mind burning extra fuel and and having an erratic idle.
I wish gen 4 hemis had this much aftermarket support
You should test Comp LST line Richard. People tend to think more aggressive ramps make more power. Thanks for content bro 👍
I have
Gr8 video, should do the same test with the ls3 engine
lots of ls3 cam vids up
I dont see much about a cam that improves off idle to 3000 where a truck will operate most often as a diesel operates ?
This is whats needed by a lot of people.
A cam that closed the gap vs a diesel.
Tick performance towmax stage2
@@The8ball365
I dont think that tow max max cam would come in as quick as a truck Norris or chapacabra cam since its on a 114 ls a vs the tighter ls a of the 2 i mentioned and wont have as much tq either due to building less psi of cyclinder pressure with the 114 ls a.
You should do a test with the same cam specs but different lsa
THAT VIDEO IS UP
Didn't see the hot rod cam HP and tq? Great video showing the good stuff. Iirc all gen 4 5.3 have the flat tops anyway so I'm trying to go that direction or at least grab the bottom end out of one
How much would it run in a dollar amount to modify a 2016 5.3L v8 1500 Silverado extended cab that has a k&m cold air intake, borla catback exhaust Y, Tuned, and a throttle response ob3 plug in, to make 425-550 hp? Not including installation/labor fees, simply just the parts to accommodate this much horsepower. Then, what exact parts/part #’s would you recommend to ultimately reach that number and could you provide me the links or options to find the best parts to reach that number of HP? Thank you, Richard.
Forgot to mention, AFM/DOD delete also installed.
Great teaching tool
I have to wonder if the average custom truck or hot rod owner could even notice some of the small incremental gains on these cams? Obviously, 100 HP is going to register on the seat-o-pants dyno. But, 10 or 20 horsepower is most likely not even detectable when out cruising on a Saturday night.
So basically when replacing a stock cam, it seems you need to at least throw in a stage II to see any significant improvement.
you will feel 20 hp
Hello Richard I appreciate the video curious how a summit 236/246 .612/.612 110 summit says this cam works and has good valve event characteristics and helps with 110 lsa but I’m worried about piston to valve clearance with 862. What’s your opinion should I run it?
If you install it, you should always check p-v on a cam that big
___ Ok ... I was at a friend's house yesterday and he is in the process of putting together a 5.3... long behold he had a camshaft kit there that he purchased from one of the Chinese apps.. crazy enough to say that the camshaft came in a BTR box. The camshaft pushrods valve springs with valve seals. All for under 200.
I would like to know if these camshafts are authentic. They looked identical to the one that I have. I have a BTR in one of my motors and this Cam that he has looks pretty much identical like mentioned even came in a BTR box.
But will it hold up? Is the steel the same quality? The price was less than half of what I paid for mine.
we have tested a couple of those-specs were not correct, metallurgy was not correct, big NO for me
@richardholdener1727 wow Richard I wasn't even expecting you to answer me.. Thank you very very much. Happy New Year to you and your family. Wishing you the very best always. I'm happy to know that I didn't go to the cheap way then. Wait till I give him the news LOL. The crazy thing is it's in a BTR box. China is really doing people dirty
Great information
Man I’d love to see one of these tests on a k series or even better a b series Honda
they already have much better cams-but I have tested a lot of cams on B series
@@richardholdener1727 yes I thought a modern B series shootout more than an old school one you had already done ( still appreciate the old stuff )
Awesome thanks
What stock 5.3 makes 354hp and 380torque?? Stock ls1 5.7 corvette makes 350, 05 Tahoe 5.3 makes 295hp 330 torque
test method-stock ratings are with full exhaust, full air intake, stock temp and tune-we changed all of those
@@richardholdener1727 what’s the best cam on the market for a 5.3 in a 3700 lb car , 3.42 gear , 4L65E trans, headers, duals , stock converter , stock 2005 5.3
if the requirement is stock converter-the Truck Norris will be tough to beat
When picking a stall for the cam, the camshaft manufacturers state to use for an example a 3500 stall but the cam has an operating range of 2500-7000, could use use a 2500 or 3000 stall, maybe somewhere in between or are there still underlying issues?
I have a 01 rcsb truck with the Lm7 I’m full bolt on (long tubes, tbss intake manifold S&b intake) I also have injectors and a 340 E85 fuel pump. I wanted to know what cam you would go with to get the most horse power NA I also want one that would need a torque converter to make that jumó too
most peak?
Could you do some testing with tick performance cams?
Power up to 3500 rpm was not very different from the smallest to the largest cam. This is probably the truck intake manifold dominating the midrange with its runner length. Were all the tests run with the same type of manifold?
Can you test just shaving heads at 0.5 intervals? See what making a smaller chamber and higher compression will do??? Please
compression adds 3-4% of power per 1 full point
@@richardholdener1727 so from a 9.5.1 to a 9.6.1 is 3-4% Is that correct ? Have ton done any controlled tests with that, or is it a major pain to do such controlled testing?
@@taraszakordonskk57319.5 to 10.5 would be a 3~4% increase. Compression makes your motor more efficient, which is where the power increase comes from. You'll also see better fuel mileage, although if you go up too high you need higher octane fuel (if you run WOT).
Thank you for all the endless value you offer us, Richard!
Richard Holdener Will you do a lm7 engine Builds using 3.80 bore 6.128 rod length and 4 in stroke , 3.80 bore with 4 in stroke stock rod length , I want to know what the difference will be Using 706 heads truck norris cam ?
rod length won't change things
My trucks an everyday driver, 66 Chevy, work truck, haul wood, pull a 16' utility trailer.
I'm about to do an LS, probably 5.3.
Will the BTR Truck Norris do good on hauling firewood out of the woods, but haul Asspine at the top side? Add the eBay headers, maybe some 30-33lb injectors? It's a 3:73 rear.
It will help like the Texas Speed Chopacabra, but you can do a 383LS build, or do a LT1/LT4 (Gen 5)
I put a COMP Cams XFI RPM Cam in a in my neighbors 2005 Escalade, it felt like a substantial gain together with MagnaFlow 3" street series Cat-Back exhaust system and S1000 Diablo Sport AFM Module.
it has 228 Intake Duration at 050 inch Lift and 230 Exhaust Duration at 050 inch Lift.
Can you give us a good cam vid for Cali smog legal cams for an ls… that will give us some good power
I don't know of any
So i have a 5.3 vortec with 706 heads that im porting, but i was wondering what the biggest cam i can run is without cutting pistons bevause i wanna do stock pistons and gen 4 rods. Please lmk thank you! Will run pac 1219 valve springs depending on lift that i can do
lift has nothing to do with p-v clearance-that is all duration. why do you want the biggest cam?
Great video!
best cam to make the most hp on a stock 5.3? also doing injectors and will be on nitrous so didnt know what cams were meant to be naturally aspirated and which werent
get the biggest one that will fit-then be disappointed unless you are racing it
My new acquisition. Pure stock, ‘04 Cadillac CTSV, LS6, manual 6 speed. Can upgrade suggestion?
L78?
I want to see a gen4 block 5.3 with l96 cam and different cams
see the ultimate cam test video
Great video. What of those camshaft would fit in a turbo application, make the most power?
the one that makes the most na power
I'm guessing you were running the factory springs/pushrods with each cam?
cams required springs
I know you’ve done stuff with the Red Hot cam before. Can you do a video with a 5.3 and a Red Hot cam?
that vid is up-the Hot Rod is a better choice
Have you done multiple cam swaps on a sbf 302/351? I've looked and haven't seen one.
Richard, I know this is an older video but still waiting for you to go back and do the LS6. Camshaft, since the last test you did on it seized up inside the 5.3 and you felt it was an accurate on power gain. That was quite a while back. Any idea of when you going to retest the ls6 camshaft in a 5.3? Patiently waiting for that.
The LS6 was more than likely accurately represented-it does very similar to LS2 and LS3-nothing magic there
Hi Richard I’m building a Gen 4 5.3 so with flat top pistons and I have 799 heads milled 20 over with 660 lift springs and stock valves with BTR 7.400” pushrods and ls7 lifters. can I run the BTR hot rod cam without piston to valve problems?
Awesome! I'm still stuck on choosing a bigger cam the vehicle is a 2007 chevrolet silverado 5.3. I currently have a BTR stage 2 truck cam 212/218 .553"/.553" 111 LSA with .560" springs and PRC 220cc cast heads, 4.11 gears, 3400 triple disk converter, 1 7/8" LT headers, the truck makes 370 RWHP I was looking for a cam to push it closer to 400 do you think the MADD MAXX cam would be a good option? Or change to a high-lift cam?
seems like a big power number for an auto and that small of a cam
I agree, it was surprising to me. It was done on a Dynocom it made 369.3 hp at 5,550 rpm and 367.9 Torque at 4,700 rpm I also have a LS3 ported throttle body and my truck intake manifold ported. I'm definitely thinking about the stage 4 summit cam now.
I don’t think that dyno is very honest.
Richard, have you done any tests with LS cams that advertise a lower starting Rpm band, like the Comp 54-424-11? The operating range is 1400-6700. Curious, as my rock crawler doesn’t typically hit those high rpm numbers.
there is no cam that makes good power gains from 1400 rpm to 6700 rpm-that is marketing
@@richardholdener1727 well, that’s unfortunate. 🤣. I’m running that cam I mentioned, pulls good and will still rev out if needed. It has similar specs as couple of cams you ran in this test.
not my first rodeo-how do you think your 212/218 cam with 550 lift compares to the 212/218 cam with 550 lift that was used in the video? It will do what that cam did
@@richardholdener1727 i definitely think it very comparable, although I hand ported the stock heads and run an LS6 intake….which I know is not good for low end power, but wanted it to keep my hood line lower and it looks better than truck intake 🤣.
it really does look better than the truck and (like the truck)actually works very well down low
You Happen to have a ms4 cam laying around over there. We have ran that cam in multiple stock 5.3’s and seem to work very well pretty rowdy cam. 239/242 .649"/.600" 111.5 LSA. Would be curious to see how that cam would do against others
I don't
What intake have you guys ran with that ms4 that works the best?
Question for all .I have a 4.8 bored out to 5.7 LS1 bore size with LS1 pistons .what affect will the big bore have on it the torque and HP .it's all together .comes out to a 5.1 liter
a bigger motor will make more power-just like a 5.3l makes more than a 4.8l
@@richardholdener1727 what I'm getting at will there be any advantage of having a bigger bore and 4.8 stroke .rather than bigger stroke of a 5.3 and similar cubic inches .
there will be no gain from the bigger bore until you get very high in the power level and can take advantage of additional airflow that might be possible from the change in bore size, that might not happen until you reach 600 hp or so
What between what kinda horse power ?
As always, appreciate your hard work and valuable data. Cheers
Hey Richard can you run a test on the aquadale speed shop hog ass cam?!
not familiar with that one
I was wondering if you could add idle vacuum for us that are looking for a street-able cam? Brake Vacuum boosterable.
use the smaller cams
Hi Richard, I'm an Automotive Instructor for Job Corps and I teach tuning. I have an extreme amount of dyno training but for the IM240 program from Colorado/California. It seems to me that lobe ramp rate, location of opening / closing on the degree wheel and LSA have greatest effect on Vacuum at low rpms as I know you know. We are an emissions state and many people want to use their Vacuum boosters without going Hydroboost. In Washington State, we are allowed to modify but HP and Torque numbers can only help so far. I've been watching the videos looking for vacuum on your control panel screen during your dyno runs but trying to see them at idle is tough because the video is typically about above 2K rpms. Great videos BTW. Keep up the great work and videos! My students love them.
Would love to se a 5.3LS with L83 LT head swap and the BTR LT HEAD SWAP 230 CAM
Hi 👋 👋 👋 👋 👋 Richard hay I wondering if all those camshafts would work the 4.3 1998 Gmc sonoma or the 2014 LUV3 4.3 what do you think.
different motor
@Richard Holdener hi 👋 Richard hay I know you where doing 5.3 V8 I'm hoping maybe you could try those same cams 4.3 V6 and the LV3 4.3 V6 I just thought they could benefit from 1 of those cams anyway thanks for listening.
Are you ever gonna test any Texas Speed cams?
I have
I got a 99 Silverado extendo with everything stock, what first mods should I do to get more power?
CAM, SPRINGS, TUNE
Patiently waiting for Chrysler 2.5 2.2 content😅
Let's see this kind of test with a 5.7 Hemi.
Can we get an ultimate 6.2 cam video?
please see the 6.2l vids
@@richardholdener1727 you right! I forgot you did that! Thanx for all you do
Hey Richard run a 5.3 on nitro methane vs 93 dyno
@richardholdener interested in the truck norris cam for my 04 tahoe z71 with the l59 engine. What torque converter you think will go good with that cam? Daily driver i like dogging it at stop signs sitting on 33x12.5 x22s
2500 or less
Hey Rich... What's the max bore 5.3 cast iron ,and have you heard of a 4.0 stroke 5.3 383 cube 5.3 looking to fix my 07 Tahoe. Thanks. I'll keep watching
most go 3.902
Hey I found it... Thanks for doing what you do.!!!
Did the L33 also have 2.0” intake valves? I believe the LM7 has 1.89” intakes
the l33 has 799/243 heads which have larger valves
if you used the same heads,manifold,exhaust,etc.... and did the same cam, say the stage 4 cam, what kind of hp difference could you expect from just changing the 5.3 to 6.0 everything else the same? im guessing about 1.25 hp per cubic inch.
please see the 6.2L (L92) stage 4 cam test video
Looks like for me driving on the street NA a cam change isnt worth the trouble of changing it lol
Chop chop
Depends on your application.... roll racing and ringing out rpm... top end power is valuable..... I shift my bolt on stock cam ls3 at 6500 but it wants more
@@Ws6Ms and I got 1 for a durability upgrade and a torque increase for a 293.
Interesting that the TN and BTR stage 2 cam have the same lift and intake duration, but the tighter LSA equated to more peak hp and tq, and started making power ~1700rpm sooner.
In fact, the TN cam made more hp and tq than the next 218/224 on a 110 cam.
I wonder why more LS cams don't have tighter LSA's?
no one knows…aka tighter lsa has been shown and tested to death to make more torque and hp than whats mostly sold
What I've gathered is it seems that tight
Sort of. On a cam if you shorten duration with same lift you increase stress on parts and the spring requirement goes up. So yes - that might be what he did - but there is always a draw back.@@KNS_Racing
Whats the part number for the last cam and can you run it on stock pistons and valves?
summit stage 4
Can we do the same for the 6.0
Best 8 cams
I copied your 6.0 btr stage 4 came
But now it's time for a new project... I love btr but what else is out there
65 impala coupe ss
Going big rims
Looking to cruise
Burn rubber and be snappy at the light when the pedal is applied 😅
THESE AREN'T THE BEST 8 CAMS-JUST CAMS TO SHOW YOU THE SPREAD-WORKS THE SAME ON A 6.0L
What would you recommend for a 99 5.3 cam. 33 inch tires I want to run a 3400 stall converter.
what power level and what is the rest of the combo
@@richardholdener1727 I was hoping you could tell me 😂 engine is completely stock as of right now
What's the cam that gives the best power in low range ?
see the results in the video
Is there a big difference with these cams when using EFI vs. Carb'd?
the power differences offered by the cams are the same with either efi or carb
@@richardholdener1727 Ah, so it boils down to how bad you want to play with wiring.
I am wondering if you have tested the Summit 8713R1 LS cam in a 5.3 with 243 heads?
no sir
Any thoughts on the cam motion junkyard dog camshaft, 238/254 .621/.604 115 in a SBE LM7
very big in a 5.3L-if it fits p-v, it should make good power
@@richardholdener1727 piston to valve clearance is my main concern. I'll just stick with the original plan & buy aftermarket pistons
Hey Richard any chance you'll get a Chevy 3.6L v6 on the dyno? Love to see if there's much more left in them when the camaro is 335hp stock!