I'd really like to see a video of you tuning an engine to make max power. I don't care if it's 90minutes I will watch.

@TyreFryer

4 жыл бұрын

Same

@themrjones

3 жыл бұрын

Yep

@calvinevans8305

3 жыл бұрын

The chassis Dyno shop people will come after his hide if he shared the dark arts of EFI wizardry with the masses.

@LandonRoy-cv9rt

3 жыл бұрын

Calvin Evans check out Sloppy Mechanics channel on KZread, he shows you which program to buy and step by step on changing ignition, fuel tables everything...and it works I bough HP Tuners and I’m not the best but I can make it work because of Matt at Sloppy

@pennypinchingracing7488

3 жыл бұрын

Agreed

awesome. I asked for this comparison mainly looking at the L92 heads on a 6.0 and richard makes a video. you truly help out so many people with these videos. I watched them all.

Bro you teach me everything! This is the best man channel on KZread!

Thankyou Mr Holdener!!!!!! That was some fantastic data, and lots of hard work!!!! Also Sir, thankyou for presenting hard factual data that is not skewed by big money advertising dollars like most magazines.

As always I really enjoy your videos. It really is hard not to learn something from them. Your comparisons are more realistically what I and some others want to know. Questions you answer for me are related to the old fashioned risk rewards thoughts. In short will the extra money I spent for a better head give me a realistic gain in power or am I looking at 5-15 horsepower for $200-400 set of heads. More if you are considering the trick flow heads. Thanks for the videos. Keep them coming and I’ll keep learning from you.

Love the videos. Cant wait to see what my 6.0L tsp tsunami cammed , cnc ported 799 heads with a cleaned up dorman ls2 does in my car! Hoping to have a fun weekend cruiser in my chevelle!

Nice you made this video i was asking about a few weeks ago. Thanks richard!

So helpful. Working on a 68 Chevelle 6.0L LS Swap and this is super helpful

Thank you for taking the time to do all of these test so we can actually see what numbers all these combos put down also I'm trying to build a 6.0 for pulling I would like massive torque down low I dont see a video of that its mainly horsepower

Both 706 & 799 are great when ported and bigger valves though... But great as always... Good info💪🏾💪🏾💪🏾

Ya it be neat to see really high flow rec port heads with a big cam and see what kinda high rpm power can be made. I was waiting for a hit on the bag to emphisise 'best bang' or more snap or somthin haha. Nice, keep it up👍

Doing a Silverado SS build. Perfect timing

Bring that Trickflow is always out of stock I am just going to have the factory LS3 heads worked over and calm it a day.Thank you for all of these videos.They are the best!❤️

I'm so glad I found your videos when searching about ls swap. Since I first started watch I've picked up a junkyard 2005 lq4 for 273$ today I picked up some 799 heads for 170 never dreamed it could be this cheap for power. I always thought you had to be rich to make big power

I wish I had a Time Machine, I would drop off a set of any LS heads off at Packard and Studebaker in 1950. Just to see if they would still be around today.

@gradoisx2348

4 жыл бұрын

you better drop off the casting dyes and prints and tooling to reproduce them too.

@davidtaros1297

3 жыл бұрын

UperhalgalgUperhalgalgklk

@chipperunder6887

3 жыл бұрын

@@gradoisx2348 Packard Could easily reverse engineer it

Hard to beat the price of OEM "LS3" heads vs aftermarket heads.

Hey Richard,I’ve seen this video before but didn’t remember it.This is a very good cylinder head comparison,can’t believe the 706 does so well on a 6.0!!I would like to know why GM decided to put the rec port on truck motors??Obviously have way lower torque below 3000 where they run 99 % while driving.Watched your latest last night blower verse’s turbo live.Good to talk about the newbies comments and doing your own research and not slamming them for uneducated questions and comments.Your channel is by far the best on engine testing and why this or that does better or not the best.Thanks so much 🙏🙏🙏🙏🤓

Awesome video I have the early 6.0 and that has the cast-iron heads on it trying to decide which head's to install. Thanks Richard

@ryanwagner5181

3 жыл бұрын

Im in the same situation what heads did u end up choosing?

I love what you do man,You gives a lot of data.New sub from Texas, Wish i could join you're team man:)

Thanks Richard for the info. Seems like im going with an LS2 since an LS3 is just expensive to get. Good to know that with these upgrades it will get me bewteen 400 to 500 HP which is where i want to be.

Been waiting for this video!!

I back you up 100% on how you say cams are cams they're not prejudice to rectangle or oval I'm a engine builder for many years with a shops full of just about any and every tool we can think of the measuring airflow to dyno you get the idea and I'm tired of these young kids thinking certain cams are for turbos certain cams are for heads they won't learn till they get older thanks Richard I'm sure a few people pay attention

Richard’s imitation of motor noise is so much cooler than the actual dyno test 😂

@richardholdener1727

2 жыл бұрын

WAIT TIL I GO FULL VTEC!

Can I just say one word? AWESOME 👏👍

I love watching his videos i learn so much💯

Great video! This makes me want to port the 243's on my 6.2 even more XD

Just built a 408CI out of a 6.0 liter with a 235 Trickflow cathedrals that are ported and port matched to a LSXRT truck intake manifold that also has all the runners ported. Motor made well over 600 hp on an engine dyno with a smaller cam and a fantastic torque curve.

@elfraz12

Жыл бұрын

Doing the same now. Need the best TF heads to produce 6 and some change HP/TQ

Your videos are great stuff. I would like to see a video of you walking through a marine/towrig set using a LS stroker.

I would love to see you test a set of RCR worked rectangular port heads as well as a set of ported Advanced induction 243’s please.

Thanks again Richard, can you show us the different limitations of valve springs stock/conical/beehive/dual springs on a few different camshafts please? At what rpm does valve float/bounce occur? Does the extra seat pressure reduce net hp noticeably?

Very nice. Thx for the video. I've got a nice general direction. Cam intake tune and headers . So maybe 2k ish build.

Closest to my build so far. PRC 317s and pistons for cr with a slightly bigger cam. Looking forward to sending it lol

Nice work!

Great as always!

I might try augmenting the cathedrals with long turn radius enlargement with some more duration on the stick, also turns small valves into big ones for no valve train mass increase.

Great info as always thanks Rich!

Can you do a video about remote turbos, Showing how exhaust/charge length effect boost and lag? Enjoy your videos!

Great vid! Hardest working man on KZread

@richardholdener1727

4 жыл бұрын

Appreciate it!

@karter9908

4 жыл бұрын

How about GM CNC heads on this test???

Even though I’m a month late to the party, lol, this was perfect. I’m literally pulling 243’s off my LS2 vette for some factory 823’s I had laying around.. Milled .020 with a .040 head gasket to bring compression to almost factory 10.9:1 with a cam swap 22x/23x on a 114.. hoping around 470 wheel in a M6 car. I literally had all the parts laying around which is why I’m doing this combination..

Love your videos! I’m preparing to build up my L76 in my 2008 G8 and your videos convinced me to go factory heads, rocker trunnions upgrade, sloppy stage 2 cam and FAST LSXR 102 intake with 102big mouth TB. I will add fluid damper harmonic balancer and Vigilante 2800 stall converter. I want 600 hp NA, but I know I won’t get there without losing a lot of low end torque and I don’t want that. Thanks for all your time spent making these videos!

@clueless4wat322

2 жыл бұрын

Did you ever end up doing it to your G8? I also have a G8 that I am saving up for the engine build and figuring out what would get me to or past 600 NA

@danboren6567

2 жыл бұрын

@@clueless4wat322 The engine is complete and I am having it installed now. I will have to wait and see what the chassis dyno tells me. I decided to make some changes to it so it looks stock under the hood. Also, I am building another LS3 for my daughters 89 Trans Am GTA and I will be going for more HP with it!

I would like to see some CNC ported/milled rec port heads or even some aftermarket rec ports.

Hey Richard. Thanks for the videos buddy, keep em coming! I love the way that comp cams 54-459-11 works in that 6.0. I have a full bolt ons, stock long block, 5.7 LS6 with 6 speed manual (2005 CTS-V) as a daily. Do you think that cam would work well in my car. I like a loopy idle and high rpm power. Thanks again Richard!!

@dannymarcano9268

2 жыл бұрын

Yeah there giving me the ice to wheelie my car lol

I'd like to see the trick flow against some cheap Patriot heads 225cc 317 s with 72cc Chambers 2.05 valves at 28 lb of boost. It'd be interesting to see the difference. I think we may be surprised. May be able to run a little more timing with the big Chambers. Thanks again these comparisons are great

Man you have some good content, you deserve a raise in my books.

I have a lq9 and these parts on a shelf waiting for me. 821 heads milled .20 - .30 and ported Ls3 intake manifold and arp bolts

An interesting test would be to weld up the chambers on the LY6 and re-shape them. De-shroud the valves/bump comp etc.

Let me start by saying that your videos are awesome! Big LS enthusiast here. You should do a video about reusing tty fasteners! That would really get some mean spirited comments haha.

As always awesome video great information but id like to see say a set of AFR rec. port heads on the dyno vs the trick flow cathedral ports. Then a stock intake on the trick flows as we know the fast intake makes great power with cathedral ports but will cost u almost as much as a set of heads lol!! Also maybe use a fast intake on the AFR rec ports do a stock manifold and a fast on both sets of heads. O ya might just as well throw a set of ported GM rec ports for us guys that like to get the die grinder out lol!! Great work as always keep doing what ur doing best stuff on KZread. Thanks Josh Gessinger

Excellent Advice Richard I’m about to do a LS conversion on Porsche 928 with the 6.0 engine and you have so much knowledge to offer✅ I’m not looking for high hp just reliability,which I haven’t had sadly Can’t be those GM engines✅ Many thanks Frank

@richardholdener1727

2 жыл бұрын

love the 928s-with LS power it will be amazing

So a set of rec port heads would make a decent amount of power, especially with a bit of polishing!

Doing gods work as always!

I always found that a good set of heads are the way to go on a na motor . . Things have changed a lot in motor design . I really like to build a 6.0 motor . Maybe a boosted motor .

The 706 heads were impressive. I have a Silverado SS with a slightly smaller cam than you ran and 706 heads so it should be a fun truck when it’s done.

@luissonoma6255

3 жыл бұрын

What Cam did you go with? I have an LQ4 with 300k miles and a pair or 706 heads, not sure what cam would be nice yet affordable.

Hi Richard, Great video. Does this info apply to an L76 as well? Im looking at doing these upgrades, and that is the engine I have in my car. Thanks!

Very informative...I'm in the process of getting a 6.0

I would like to see the stock 317 heads as well. U usually are good about showing base numbers when you start a test.

Hi Richard love the info you gather and share. I'm a gm guy myself and have built 350 based small blocks for what seems like for ever.im currently exploring the realm of oldsmobile engines. I'd love to see you test the 350 400 and 455. My current olds is a W31 clone engine with a 308 cam and a set of 7a , little a, there are two7a heads distinguished by the size of the A height next to the 7. It's got a proform 4160 750 Holley and a set of headman super comp long tubes.im going to put a 6AL and wires on it from msd. It's a healthy little brute lol. I'd love to see what or how boost would effect the block integrity? I've heard olds have main webbing issues in certain years and oiling issues. I've watched your Pontiac and Buick vids love the enthusiasm btw. Please get a 68 to 72 olds engine and flog it for us olds folks

Could you test the BTR EQUALIZER intake I’m really curious on how it would perform on a boosted application

Please do a regular early LS1 found in Camaro's. They seem to get the least amount of love and want to see how well it could do with its stock heads followed by a few pairs of different castings and a CNC aftermarket casting to round it off.

Rich first off thx for your hard work and sharing your knowledge. Just bought a 05 gto kooks LT w 243 heads 6spd watching the graph I think 108 lsa for keeping it street is great. I want a nice chop in my 6.0 wut would you put in this nice gto? On lift int@exhaust I'll go with your decision. I've always had old pontiac stuff but this is my first Ls I've been converted! These motors are great 👍🏻look forward to hearing from you thx rich. From ala gulf coast.

Why is everytime i have a thought thinking of a combo or engine and wondering if there is a video and sure enough there always is (extremely in depth also) and if there isnt one there always seems to be one posted right after i look lol. Heavy bag holdener knows what i want!!!

Wow my ly6 heads are better then I thought! Thanks a lot brother! 👍🏻 Loving your channel man! Gonna have to dig through here and see if you have any NA cam comparisons for ly6 truck upgrade 😎

@richardholdener1727

4 жыл бұрын

i did truck cams on a 6.0l

@rustysausage69

4 жыл бұрын

hellyeah they are, those are the best LS heads to have besides the LS7 heads

Hell yeah I'm in the process of getting stuff together for a budgetish 6.0 perfect timing Richard you are the man

@nathangibson5987

4 жыл бұрын

Same lol this channel is awesome

@QuicKurtZX14R

4 жыл бұрын

Same here, just got a Sloppy SS2 cam , already have rec port heads.

@masoncampos7043

4 жыл бұрын

As am I! Lq4 have 317's and 799 heads. Not sure which way to go

@richardholdener1727

4 жыл бұрын

799

@brandonpanozzo86

4 жыл бұрын

@@richardholdener1727 I'm doing arp everything forged pistons and 12-1 compression ly6 what's your opinion it's in a 2000 rcsb sierra so I want torque lol and e85

I was running 1.52 sixty foot/mid to high 10's with a 4.100 stroke .030 over GTO ls2 block 418CID. GMPP ported(cheep) ls3 heads same cam you have. It liked 7100 rpm. 11.7 compression. Cam was 235/250 114 specked for 93oct. Stock ls3 intake/big mouth 92 Tb(cheep). Very inexpensive build for the power. Was reliable as well with Moral short travel lifters. 98 T/A 4L60 4:10 Moser 9" 3600 Yank. A good test would have been mid length runners in a Fast 102 w/102 Tb.

Man o man that 6.0 with 706s and a little turbo in a 3rd gen nova and 3.25 gears would be a great street machine and Daily, probably get great mpg too

Love your videos. How about doing a video where the high performance application is for more than just racing? Like if you want it for optimizing work tasks for a work truck.

@rustysausage69

3 жыл бұрын

If you want to make power in the same powerband as a stock truck (1000-5500rpm) then the move is to call your preferred camshaft grinder (COMP, BTR, etc) and ask for cam that allows you to use stock torque converter. As far as rest of the motor goes, a 6.0 with 4.8/5.3 heads and a truck intake manifold would be the way to go to make the most low end torque you can below 4000rpm without significantly changing the powerband.

I just wiped the cam in my gen 1 small block .600/.625 was able to go up in lift due to duration and going to 110 ls instead of the 108 . reassembling now it's in a street rod .I hope it's what the tech guy at Herbert performance told me it would be.ill let ya know in a few days when I get to make a few digs

Great video

Would you do a segment on the camaro ss L99. Not an ls3 conversion. Maybe look at keeping the vvt deleting the AFM. Finding vvt friendly camshafts and adding a centrifugal supercharger and turbocharger?

I’d like to see you do a comparison between a set of Texas speed stage 2.5 706/862 heads and a set of stock 799/243s

A set of cnc cathedral ports and application specific cam from TSP sounds like a winning combo to me.

@rustysausage69

4 жыл бұрын

CNC anything is winning

Just got some 823 heads for my 6.0. I'm gonna check piston to valve clearance to see what I have. Then I'm gonna mill them.

You need to take a look at the ProMaxx ls heads and maybe even test them.

I would love to see a comparison of TFS Rec port heads vs GM Performance CNC LS3 heads (part# 88958758) on a 6.0l or even a 408 stroker using the same 459 Cam. I want to see if those TFS heads are worth the big difference in price. I'm sure many people are wondering the same thing. Please try to perform this comparison! Thanks @Richard Holdener!

Hey great content...so I am doing my first LS based swap putting L77 in my Rs200 Altezza.Have you ever done a vid on this engine and how to get 500whp on it...so far I only have a 100 shot nos kit and stock engine .

It would be cool to see a 706 cnc ported head with a valve job go up against these trickflows or other big names.

Hey Rich. Have you ever built a Marine LS based engine looking for the best way to Marine a LQ4. Best combination to go with without water reversion.

Sorry Richard, old thread here I know. 706 heads on a LQ9 is like 11.5:1 compression. Isn't that a little high for a daily driven truck? Would love to have seen the 799s on a LQ9 with a TBSS intake & BTR Stg 2 truck cam.

Love it. Thank you

Nice work

I have been building this build for a couple years. It is the best build for a 6.0 add lighter valves and better valve train components on ported and polished heads and you get 600 every time. About the same price as a new ls3.

I bought a fully rebuilt 6.0L with Rec port heads already on it and a ls3 intake so I’m going to upgrade the valve springs and throw the 469 cam in it but man I really want those 225 heads and the fast intake for the extra power.

@flatbrokemodsquad4241

2 жыл бұрын

He never seems to try a set of ported or aftermarket 823 (LS3) heads to test against the aftermarket cathedral heads. My 823 heads had a little porting done and increased flow 50 cfm on exhaust and 40 cfm on intake. I'd like to see the comparison. Kinda like when (anybody) does a comparison of a 351 windsor and a 351 Cleveland, they always use aftermarket heads on the windsor (because it would fail miserably against the Cleveland stock for stock). I want to see fully stock except for cam/spring upgrade on both and then same with a cylinder head upgrade with whatever they want for windsor and CHI head for Cleveland.

Great video. Funny you touched on all except the 317 heads lol. I am sending them out to get ported. Should I not use those heads? Looking to make as much power from idle to 6000-6500. Are they not a good option at all?

@richardholdener1727

4 жыл бұрын

they make less than all of these because of the compression loss and poor chamber design

Had 706s with a truck cam, going rec port and stg3 LS cam this time. You better be right holdener!!!

@richardholdener1727

4 жыл бұрын

the dyno does not lie

Lol dang rich helping me make decisions on my build ! 👍🏼

I don't think the ported req port would gain much if anything but if you grade later with some more size and cam little head work won't hurt anyone

I had a set of ported 243's that outflow factory rec port heads on my bench. Combine that will a .010 mill, and they'll scream in my C6 with a stock bottom end LS2.

makes me want to build up my silverado ss engine now

I'd like to see an lq4 with a truck norris cam with a trailblazer ss intake.

Got some 706 heads for my gen 4 6.0. Can’t wait to port them and get them on the truck! Just trying to figure out what a good tow cam would be then it’s game on

@mirabalmedia

3 жыл бұрын

BTR stage two truck cam will be a good tow cam with those 706

I would love to see in AMC 360 video

It would be cool to see a vvt comparison

can you make a video where you put one of these engines in a pickup and test the performance and mpg?

Man honestly some of these factory heads with some port work is hard to beat right now I’m running a set of profilers and I love them I’m also running methanol some not sure what gas would run but on the dyno mine made 2357 and had some left but I have a tkm427 with twin precision 88s I was thinking about going to just one turbo but man the power she makes is awesome.

@richardholdener1727

2 жыл бұрын

that's a lot

HEY Richard Holdener! In a previous video you mentioned an average drivetrain loss is 100 rwhp. Are there any transmissions that suck less hp from rwhp. I have a 4l80e do you think I am loosing 100 rwhp would that be your guess? I know it's impossible to test that on an engine dyno but I figured you would be the one to ask. Thanks man

This is good info, thank you

I just drove my buddy's 2005 GMC Sierra 1500HD with a 6.0 the other day and I complemented him on how well the truck drove and made power, thinking it was a 4.8 or a 5.3, but it was a well behaved easy driving truck in bone stock form.

@BERPSU1

4 жыл бұрын

All 1500HD's used the 6.0/4L80E combo. There was no other engine/trans options. Most were 3.73 geared.

Have you done any testing with the towmax cams? I’m debating on getting one for my truck I tow with a lot.

I think a 706 head with a high velocity porting job and fully radiused seats and shaved a little for a compression boost would be a great "factory" setup I think you cam choice 231/239 would be optimal...

@jamescaban7710

3 жыл бұрын

@The Truth about Africa hurts lmao right

@jamescaban7710

3 жыл бұрын

@The Truth about Africa hurts let me restate my self for you my brother is a low coefficiency of friction porting job lol...lol

I built this exact build of the rec port heads with the comp 469 cam on a 6.0L to put in my c5 corvette I’m thinking she will haul ass after