A truck Norris is a ridiculously small cam for a 408, the low end gains that would be useless considering the fact that a 6.7L stroker is already going to make gobs of torque and defeats the point of why you would even build a 408 in the first place. It would do basically the same thing as it would in a 6.2

I had big chopping small blocks way back when. Daily driven cam of 246 @ .050" with 3500 stall on wrinkle walls as my sole means of transportation. But now I'm the opposite. I want stock idle but 6500 rpm hp 😂

That is awesome!

that torque reading is a converter spike-that cam would make more hp and than torque when tested on an engine dyno or with a manual transmission-but still good combo

@richardholdener1727 That's what I kinda figured. It definitely has a very broad power band as it sits. I'll be interested to see what it will do with the new grind.

it will make less power down low than the Truck Norris

many other smaller heads (the 245s were overkill)

What about 317s? I can have a set milled for CR, but would they flow enough?

Think that could work well, would use more rocker if it allowed too

for what rpm range?

see the 700-hp 454 build with the 4.25 stroke

@@richardholdener1727 thanks Richard

you can daily a 408 just like any other displacement-just more fuel cost

For a 5.3L yes, for a 6L - go a little larger. I have TSP cam about the same size as the TN in an LQ4 with 862 heads and supporting mods. It's OK, but not impressed.

Do it man but I have a recommendation. If you get a lq4, bump compression to 10:1 at least. I have a lq4 that I put flat top pistons in, with the truck norris cam. Stock intake, stock 317 heads. I love the way it performs. I have a built 4l60 that I'm using the 4.3/4.8 converter because it has a little more stall 1600-1800 vs 1400-1600

@@rdnck891 Absolutely. Compression is so often overlooked for torque, which is all I'm after.

TURBOS DECIDE THE ULTIMATE POWER-THE TN CAM WILL WORK

alum ls

pick the Hot Rod

NO-THE BIGGER CAMS WILL BE WORSE

yes

LS motors generally run the same length pushrods for all cylinders

Is tuning more difficult when running a Cross Ram intake?

@@brudevold62 shit it's pretty difficult in general to get them 100% right....especially with the factory ecu that most of us deal with. He's on a dyno using a aftermarket ecu. Most people never see the benefit of the cam.

VELOCITY SPIKE?

At the 4:1 collector some companies like ARH put a spike in between the 4 collector tubes. Looks pretty cool I wondered if it made a difference as well.

What that guy said ☝️

for what displacement and compression and octane?

@richardholdener1727 For the 6.0L VVT L96 on stock internals with 89 octane pump gas. I'm looking to keep the VVT and already have intake and shorty headers, but I'm interested in valvetrain mods and a tune. Would higher compression and higher octane help low-end torque or hurt it? I know these are already low compression to begin with. I am trying to avoid increasing the RPM range and shifting power up. But I want overall best performance for a street application with Towing and offroad use in mind.

YES-BUT IT MIGHT BE A TOUCH SMALL FOR THAT MOTOR-BETTER TO CHOOSE THE 219 CAM I HAVE AVAILABLE

btr red hot or maybe even bigger

@richardholdener1727 thanks brother

SCAT-but lots of good ones out there like Summit Pro LS

I have a Low Buck Truck ($179) that would work well on that

Perfect, where can I purchase?

no

it should make more than that-does it have headers

@Richard Holdener 1.75" shorty headers into dual 3" stainless exhaust. The local shop has a mainline dyno that reads about 20% lower then the other shops in the area.

That would probably do pretty well. I'd probably go solid roller myself but with those lobes maybe 225 @ 0.050, 275 @ 0.020 / 230, 282 on that 108 with 62.5 overlap, 1.8 rockers as you said should work alright with those 245 heads to 7200 rpm so long as the springs are good. If it was mine I'd probably run it a little farther out in rpm too, so perhaps lil more duration that brings overlap around 70, maybe 280/292 @0.020. Just my opinion but if you want more torque then build a big block for less/$ or run a turbo/supercharger setup and spread that lobe separation out a couple/few degrees.

I used 108 lca, thought that was what you said. Close enough, little tighter probably better than a little on the wide side.

That makes no sense at all. If you've watched many of Richards videos, you'd know that there is no "right" cam for an engine - they all work in every LS setup. The difference is where the torque band is - the larger the displacement, the lower the torque comes in (and consequently peaks). Saying that a cam is "too small" is silly - it depends on what you're looking for. In this video, he was discussing a more low end grunt Torque Monster setup - which as he said at the beginning, displacement is the best answer. I think you have a predetermined idea of what a 408 is for - but as with anything in the car enthusiast life, it's flexible in how you adapt it. I'm looking forward to building something like this (basic overbore with a 4.00" stroker rotating assembly) and I drool at the thought of a TBSS intake and the Truck Norris cam. Stock 799 heads, maybe light porting - should be a stupid grin inducing monster with silly torque everywhere. :) It'll definitely motivate my 6k lb AWD Escalade with some authority. No, it wont' be fast - but it will be fun. :)

@@Broadpaw_Fox it sounds like you'll have something to really enjoy. Even a 400hp mild sbc is fun. As far as cams there are tendencies but depending on what you are looking for you can get close. And I'd lean towards saying there are "right cams". If you're racing, have data and use an rpm histogram and scatter plot then you can see at what rpm and for how long you spend time and work towards making average power where it counts. The average view isn't gonna have i2 Pro... and do that. But I will say one cam I'm not a fan of is that BBC on a mile wide 114 LCA 😅 (for a traditional valve angle big block, especially as the cubes go up and it stays na) still love the channel and appreciate the content. And yes he described grunt and also described he'd use different parts. With those 245s I'd build around the min csa. To me if I'm building a street engine I'd want the most cubes and best heads I could afford and build around that (assuming I'm not gonna be in the stratosphere for parts because I chose something crazy like a 9° head), ya know stick with decent parts with reasonable piston speed... find it hard to beat a BBC if you're going na average hp/$. Plus they sound really good.

@@Broadpaw_Fox try to get your hands on factory LS3 heads and intake that will help with power everywhere more than the 799 heads and TBSS intake

500 lb-ft is very easy out of a 408

@@richardholdener1727 but is it reliable in a truck application DD with occasional towing

HAD TO PULL IT DOWN

@@richardholdener1727 That's to bad, this is a great video though

6.7

truck norris

@@richardholdener1727 Thank you!