He’s like a parent telling you something you don’t want to hear .....but you know they are right !

someone actually explain something really well thank you sir

When the man wears his glasses at the tip of his nose, he knows his stuff!! Glad he spent some time for this video! Thank you

THIS MAN IS A EXCELLENT INSTRUCTOR ..IF I WERE IN HIS CLASS I WOULD GET THE FRONT SEAT WOULDNT WANT TO MISS NOTHING..GREAT PRESENTATION ..I CAN TELL HE BEEN DOING THIS FOR ALONG TIME..

Ah, what id pay to spend a day wrenching with this guy. Thanks for the knowledge, from Canada.

Awesome video. It is so freaking hard to find someone who wants to build a motor for efficiency over a dollar and bragging rights that doesn't matter. You started to touch on the LS3/ L99. I would appreciate the hell out of it if you would make a video about that/them. Thanks for what you do! If it wasn't for people like you the car world wouldn't be the same today!

Just wanted to say thanks for sharing your knowledge. I’m coming from the sport bike world to Chevys and LS motors. This helps me figure out cams to look at.

Thank you for the great information. I completely agree with what you said. I've learned the hard way over the years and also seen many people make the mistake of over camming engines and end up unhappy with performance.

Thank you for sharing your experience and knowledge!

Best info I've heard so far, to purchase the right stuff!!👍 I'll be in this week with the grandson to help with his 5.7LS. We're in Foley, just a skip away, Thank you

Thanks for the video Bart. I'm stroking my LS1 to 383 and it is supercharged with a Harrop HTV1900. Currently has the stock cam in it (heads, valve springs, arp bolts, forged internals already but swapping some out). This video has been very helpful. I'm putting in a 224/230 .6 & .61 lift at 112 LSA. I'm not chasing power but low down torque and want to use a standard stall. I also want a little chop and the 112 LSA will give 3 degrees of overlap. Yes, I'll be losing boost but I'm not chasing max hp, just want that low down torque and a little chop. Also concerns about the blower running out of puff high in the rpm range, hence the cam size. Car is a WK Grange. Thanks from Australia!

Keep them coming. The numbers will come. We're watching all the knowledge

Awsome to hear an experienced engine builder with real world knowledge talk about something so complex and makes it easy to understand. Where was this video in my life? Lets blow this video up

if you just want the "chop Chop" use a 232/242 on a 108 lobe sep. it wont pull its way out of a wet paper bag, and it will get 9 mpg but it will give you Chop Chop. but i will not grind it for you.

Thank you sr. I followed you instructions and ran a 12.00 with a 6.0 in a 3000lb truck and it feels great.

great video, thank you for sharing all your knowledge. I am about to attempt this for the first time.

Bart did work on my 02 Mustang, I couldn't have been happier! He's a great guy to talk to! If you go to his shop, prepare to drool!! ~SGT. Hot Wheels.

Tha for taking the time out to learn us... 👍

Great video , thank you . Now back in the day PAW advertised a SBC cam that stated it WAS a 360/360 , always got a chuckle from that and you just reminded me ....thanks again

my first week starting ls swaps, I sold 4 in a week and thank-you for the info. With this, I'll be better able to make my customers happy.

Awesome vid! It's had to believe people are still trying to run big camshafts with a stock converter... The factory grinds are almost big enough to warrant a stall converter. Gotta love the torque of a mild cam in an LS on the street... Everything feels like the old 327-375hp these days...❤

I'm in New Zealand trying to choose a new ls1cam for my Holden Commodore and with the awesome information I've just received from you and this grouse video all I can say is sweet as cuzzy bro I've got a better understanding of what I need to do now tumeke cuz👍👍

The Guru broke it down for us. Really appreciate the science. Great vid

Great vid Bart! Wish I would've found it sooner. Maybe could've done better on the cam I chose. However, it seems good enough for now. Also really appreciated your services when I had you tune my El Camino. I'll definitely recommend your business to others!

I went to Hi-Tech back in 2004 to get their custom grind cam for my 2000 Camaro LS/MT. I had all bolt ons and was looking for a little more power. I installed the cam and took it to Hi-Tech to get it tuned. Car ran perfect , I sold the car back in 2013 - Hi-Tech knows these LS motors! Glad to see you guys making YT vids!

Thank you sir this video is helping me out alot im going to drop either a 5.3 or6.0 in my single cab silverado im going to use it everyday as a daily but every now and then ill race it and didnt want to buy a cam i wasnt going to be happy with and this video gave me a new view at cams

Thanks so much.... starting a new project and came across your video. To my surprise I know your work from "Tall Guy" hellcat... I'm in the midst of selecting a cam for my 2001 ls1 camaro. The info you presented will help a lot. Thanks again.

Great video, very informative. I’ll call ya when I’m ready. Thanks! 👍🏻

Great video,easy to follow. I wiil definitely be emailing and now subscribing. Thanks from Nigel in Australia 👍

I designed and built my own cylinder head with rotating tubes where I had to guess the values by myself. I ended up at about 250/250 with a 110 LSA @ 0.050" equivalent. It has about 4-5 inches of vacuum at 700 RPM idle. I was hoping it would work well at 6k+ rpm, but oddly enough the airflow is similar to stock between 4,000-7,000 rpm and a bit better below 4k. If I did it again, I would certainly go to something like 230/230 since it flows better than a poppet valve engine and so I can improve the idle.

Didn’t sound at all like rambling, just experience and knowledge. Great video Bart !

Thank you for the advice I've emailed you to see if I could get further on selecting the right cam. On my 09 silverdo great video..

Good job! I actually understand the theory behind this now! Well explained my friend! I used to say it back in v8 vega days... it's all in the heads! Its flow!

I stumbled on this video and it is the best tech info I have heard in years. Thank you!!

Excellent video! Helped me decide what I wanna do with my 08 z71 silverado

Bart is very generous & helpful. Thank you for the recipe on my 96vortec 5.7 I appreciate your expertise!!

At 16:34 you nailed it man I made an LS cam selection video based on what we learned on the dyno over the years, I am astounded at how close your numbers are to mine I knew most of this but it's nice to get some confirmation anyway I have been saying the exact same thing with good flowing heads a ton of overlap is not only not necessary it causes lousy performance good video

Finally good straight up advice from experience..Thanks.

This was the best information on cams ive ever seen well done my friend

I was confused on what cam to put in my c5, until I called you . Thank you for that cam setup. C5 is alive and kicking arse on the drag strip.

Well explained and helped me out in choosing the cam for my needs. Thank you !!!! A good video on ported heads like small valve, dimple port , 365 cfm, 409 cfm etc would be nice

excellent video sir! I understand cams so much better now

I put a big circle track cam in my car when I was in my teens, it sounded mean, had top end, but all but needed a push start, I had to slip the clutch alot to get it moving, that didn't last long, I don't remember the spec's, but it had over 300° dur, and 106 lsa, it was crap until about 4k and wanted to keep going above 7k, I think it was a 4500-8500 cam, I'd had to put 4.88:1 gears to run that thing it would still been crappy, I had a truck also, I could jerk the doors on a cobra mustang, on the highway, but it didn't have that low down tq, I made a guy with that cobra feel bad, after spending all that money, then get out run by a 5,000 lb truck, I totally respect your knowledge, I'm here because I don't know LS engines, and looking for a decent Street cam for a 4.8 in a s10, with a turbo, and about 10-15 psi, I'd like the boost to give it the top end, and allow the cam to keep the 1500-2500 rpm tq, I'll probably be running a small amount of stall, maybe 500 over stock, so not really a stall converter, with stock 4.3 auto gears, and probably run the v6 converter, now I'm thinking about it, I know the 4L60's aren't the best, but I'm not racing on the strip, maybe the occasional trip down the track, I want the most power I can get, with the best mileage also, 3k at 65 is not me, (anymore) gas is too high, thanks for the video

GOOD Stuff! Thank you!!! we have a 5.3 we are building right now

Happy to see your channel I love your work with tall guy

Great info. Very interesting and to the point.

I want to spend my money with this guy. Very transparent. Most guys just want your money and send you on your way instead of educating you to get the best bang for your buck.

LMAO - this shows up in my recommendations and 3 minutes in, I am thinking to myself I need to go to Wallace Racing and use their calculators again... Such a wonderful resource, just gotta make sure you know what those number mean and remember your conversion factors.

I just want that Chop-Chop.

4.8/5.3L if you want to keep stock stall and trans go with something around 205-216 intake 210-220 exhaust range. Barts 223/227 cam will need a stall converter, which is perfectly fine. However, on my daily driver and for towing I like the stock stall.

Not rambling at all. Makes a lot of sense. Good stuff. Thanks.

I’ve learned more from this guy than I have from mechanics from my hometown. Thank you.

Wow I followed this channel a long time ago because of Tallguy, now I stumble across your video today while I'm looking for tips building this ls for my Regal. Small racing world

Great video Bart. Thanks for sharing your knowledge . Rebuilding my 6.0 in my 06 Hummer. Do you have a cam idea for towing 4000 lbs and street? Have another set of heads ported for it and 1.8 ratio roller rockers .

Needing a recommendation for a cam to go into my 6.0 motor, from an '03 Silverado. Swapping it along w/ @ 4L80 trans into my '92 K1500. Moving into a very fast paced city driving situation, so basically 0-60 quickness is key. But I do a lot of interstate travel too. Just tired of getting dusted in town with my TBI... Great vids, they're very informative and appreciated !

Appreciate your time and wisdom. Thank you

Awesome video and awesome advice.

Just seeing this video now, love the amount of information I got from this video.

Great Video Bart I'm sure this Video is going to help a lot of people

yummy yummy knowledge. god i love it. i feel like i should be paying for all this info!!!!!!!!!! amazing video

After what feels like half a lifetime spent trying to find the real story on cam selection for my 6.2 LS3 this video was like a breath of fresh air. Thank you for sharing your wisdom! I have a daily driver that I want to take road racing on weekends. I want to maintain driveability, make more power, and lope a bit at idle. Do you have a recommendation for a streetable 6.2 LS3 Camaro?

Love Bart keep growing buddy 💙💙💙

Excellent video sir. Thank you

Thanks it sound like I have a good overall cam in my l98 camaro from years ago...thinking of pulling it out cause I’m doing a 01 camaro Ss ..so I’ll be checking for more backup info...

Amazing knowledge thank u I hope u do more like this

Very educational I'm a newbie and I'm researching how to build my 98 z28 camaro ls1.

The 233/253 @ 0.050 .646/.637 on a 112+4 in my LS3 Camaro would probably fall on the extreme/max effort end of your scale - but even with stock compression it performs well and has surprisingly good manners for 19* of overlap at 0.050. It's ahead on power and torque for 3200 on up, picked up 70hp at the wheels, and 6-7mph in the quarter mile (probably more if I could get more than 4.10 in the rear). Sure, dynamic compression took a pretty good hit with that much overlap, but eventually I'll get these heads milled and bring that back. Honestly, it's street manners aren't bad at all for what it is, I put about 5k miles a year on the car, and I'm smiling the whole time. I'm sure it's not news to you, but you never touched on tuning in your video. I don't think you can overstate how important that is to the way any camshaft is going to drive. A poor tune will make a mild cam drive like trash, and a good tune can take a rowdy piece and make it very reasonable to live with. I've nitpicked mine to death myself over the last few years, and the little things like injection timing and light load spark tuning makes all the difference in those bad manners areas. But great video - I think you stressed a key factor really well: be honest about what you really want to do with the vehicle, and make a choice based on usage, not what sounds cool. If you're not willing to put a converter and gears in it, and not willing to tolerate some misbehavior, stay away from big duration stuff!

I got a 5.3/t56 with sloppy stage 2 cam idle set at 900rpm and man she idles aggressive . Car moves side to side at idle I love it. Only paid $229 with pac springs and install was a breeze

That was good, thank you for your real world knowledge

hey everbody, if you want to reach me with questions either send me an email bart@hitechmotorsport.com or call me 763-712-9088. i answer every one as soon as i can. thanks bart.

You don’t choose a cam for an engine, you choose a cam for that engines end use. If you want a perfect cam, you’ll never find one. Every single grind has its own personality. Horsepower , Torque, or somewhere in the middle. You will make gains in some areas and lose in others. Thats the facts.

Wow. Amazing. I have a vvt 6.2 in my denali and i had a custom cam made by geoff skinner because i wanted the eps lobes. I love it but it has shit down low in my land yacht. But im thinking it wil be perfect in my 70 chevelle. Wish i knew as much about heads and cams as you do. Thanks for sharing the knowledge. Im wondering if i stroke my motor if it will help with the cams lack of efficiency down low.

Great video lots of good information

Thank you for your knowledge

this is very helpful because i have a 5.3 in 1974 and i want a cam that doesn't require a stall or change the rocker arms

Thanks Bart, that was a great and informative video!! Really enjoyed how you simplified and explained how cams actually work!

Great info, thank you for sharing!

Such an awesome video you made and such a great job explaining. I have an Escalade 2005 with a 6.0 Vortec. I'm so lost trying to figure out a good cam to increase torque and hp with the right parts around a new cam. I plan to use this to tow my toys but I still want more all around power and speed. I have looked at so many configs and found one person who compared several cams in a LQ9. I'm very interested to hear your opinion on a 585 lift 228/230 duration and 112 LSA. Unfortunately I didn't get the list of other parts to make this complete but the curves looked nice. I would like to hear your opinion for a build around this cam and what you would do.

Wow, great info!

Wow, expertise. Hard to find. Ill call you to order my cam. Thank you.

I went with what they recommend 231 243 duration @ 116 + 6 degrees.. 9 psi magi supercharger w/ stock heads 488 gears.And performed awesome. On the next bill going to order heads and cam as recommended , big dia. Header ...response was Instantaneous. I’ll always go with recommendations of cam heads after talking to the pros , BUT they have to listen to YOU and YOU have to listen to them

Excellent video your knowledge will be building a 5.3 real soon your 475 to 500 horsepower is the range I really want to get

For me I try to make the most average power in the rpm range the engine is designed for, hence why its extremely important to be honest with yourself about what you are going to do with vehicle

Good info! About three years after this video the hot LS truck cam is the Truck Norris which has a really narrow LSA (~108). This guy likes wide LSA’s after thousands of dyno runs! What gives?!? I know that a torquey street engine can be had with a little compression, smaller ports for higher velocity and a narrow LSA. I have a BBC set up that way and it’s nasty as a porta potty on a hot day!

Great job. Good info.

Some very good information here! 🦅🇺🇸🦅

Great informative post I learned alot thanks

Jesus brought me to this channel!!! About to rebuild my 2006 GMC Sierra CrewCab w/5.3L, and it’s an everyday truck, that occasionally pulls a trailer full of landscaping materials. I don’t need a Sloppy Stage II cam, for sure. Thank you for real world application information🙏🏽💯✊🏽

Great video Bart! I wish I had this when I chose my cam. Can you do one of these in relation to superchargers?

Hate to correct you, but more overlap does not mean less cylinder pressure for the same duration cams. When you tighten the LC you are advancing the intake lobe which closes the valve sooner. Hence higher psi cranking pressure. Most oval track cars run 104 to 105 LC to help accelerate out of the corner. When I worked at Camonics years ago we found 105 to 106 made the highest peak power but the worst idle. 113 to 116 made less peak power but the best idle. Engines that are FI typically run wider LCs due to idle issues with low vacuum. This is naturally aspirated as turbos and blown cars favor 116 LC to keep from blowing the charge out the exhaust port. Your video is somewhat correct but you fail to talk about other items such as exhaust type, compression ratios, etc. which also factors into this.

Great video. Love it.

I like what you’re saying it’s actually better to go with a smaller camshaft to get a bigger performance and track ability. Especially when it’s a daily driver. I’ll be watching.

First of all, Thanks for sharing your knowledge free of charge that's uncommon these days. Question : are the horse power and torque numbers you gave for your recommended cam for the 5.3 (truck) with no other modifications other than maybe after market exhaust??? I want to add performance to my 2003 GMC Sierra while being able to daily drive . Any help appreciated!

Great information, Thanks

Awesome information sir. I have a question I have a stock 4.8 what cam should I go with.

Great video.. What can would you recommend for a 4.8 with long tubes, to make good power for street cruising

Great video .

Thanks dad I needed a lily toe peep talk while I’m trying to spec out this 6.0 👍🏿

I love you everything you said about the LS1 LS 2 camshafts and all the tech inspects but I didn't hear nothing about the LS3 . I thought you were going to talk about the LS3 also which is the best motor they made in the LS series

What an good spec cam for an 383 ls1 stroker with trickflow 220 heads with 2.055 intake valves and 1.57 exhaust valves and fast 102 intake and Tb , I had an 240/250 cam speced and the car felt like an dog , and only trapped 117mph in the 1/4 mile