Rockers Part 2

[@2010WRXLimited]

Steve you have the best channel around. I like the way there's no BS intro and outro with annoying music that nobody likes. You introduce yourself like a HUMAN just standing there and saying "Hi," and a little smile. And your content is informative also with no BS. What might be cool is to do a video or series on your history, maybe with other legend guests from your career. Keep it up!!

[@glenbrannon7224]

Thanks for all the technical information and videos, learn more from Steve than anyone else. Thanks Steve 😅

[@bigredracer7848]

162👍's up Steve M thanks again for all the awesome information and technology and innovation come from your shop I only pray I can win the lottery so I can come and buy some of those great products you are selling

[@JohnRoberts71]

Great content thanks for sharing, very informative

[@keefespencer1173]

Proline seems to have the whole Hemi engine figured out especially with the BIG Procharger Hemi set ups. Almost everyone in Street Outlaw's No Prep Kings is running them. I think 8 out of the top 10 in points right now is running a Procharged Hemi from Proline. There is a few cars in the 32 car field who run Noonan or Moran Hemi's but they are running either a HUGE single from Harts turbo or big twin turbos, two cars that I know of who run a 4.5BS Small Block Chevy and a couple BBC's, but all of them are running twin Pro Mod 98s. There is a couple 481X guys in there running twin turbos mostly Pro Mod 98s, two cars that I know of who run BBF one with twin turbos and one Procharged but for the most part the front runners are running Procharged Hemi's from Proline and most of them with the exception of maybe one that I know of but maybe more who run the TH400 trans only one in the top 10 who is running an air shifted Liberty 5speed through a Quick Drive with an all billet bolt together lock up converter and then you have your guys who run the 5.0 and 5.3BS 757cid and bigger all the way up to 959cid with 5-6 stages of Nitrous and I've been telling Tom Bailey this but I think he should build a car for NPK and run one of your BBC's with twin turbos because in NPK if you run a BBC you get a better weight break than anybody including the nitrous guys and Procharger guys and that is one of the main reasons everyone is going to the Hemi Procharger set ups just because you are only limited to exactly what the Procharger can put out opposed to making more HP with a turbo(s) and I've seen most of the Hemi Procharger guys make around 3600hp as to where you can make over 4000hp with either a 481X or a Hemi with turbos and the screw blown Hemi guys are the most restricted on NPK rules with them only being allowed to 95% so keep that in mind but there is still one screw blown car running in the top 10

[@AV-cc5wl]

This isn’t a NPK video champ, this is just a rocker arm info vid lol

[@soundslikebstome]

That is just TOO much information.

[@shakeydavesr]

Better too much, than not enough,,,,, just ask the wife;) It’s off topic, but still, it’s informative.

[@jjyoung909]

From a materials perspective, Titanium might be the next logical progression, or if you really have more money than you know what to do with, one of the more exotic High temp, high strength, Ultra light weight aerospace alloys.

[@TAFB1320]

Thanks for all the info, I’m currently building an LS “over time” and all these informational videos will have me spending money once with a better choice in parts

[@FTGMotorsports]

With all my experience I still pick up a tidbit or two when I listen to the master speak the explanation of why I have seen an intake roller lifter Issue with a broken exhaust rocker on a boosted engine was an eye-opener

[@mikef-gi2dg]

Whole new appreciation for rockers.

[@tonkatoytruck]

I have been watching your valve train video series and the question that keeps popping into my head is surelry there is a horsepower factor that helps to determine how much you should invest into your valve train.

[@mikef-gi2dg]

I looked at a bunch of Steve Built 1000hp engines of many makes, and I am amazed, by what it really takes to pull that off. Then I see videos, and stories of guys who take a junk yard, unknown LS engines, and boost them to *1000+ hp, in their drive way, and I say yeah right.This rocker are tech, will make me look much closer at my very mild street engines.

[@Ron-hz4js]

Such great information. Thanks. I’ll subscribe. I’m in the process of researching roller mech. Cam for a kb hemi. Street 508

[@generalsixty2133]

These videos are great! Stock LS rockers are known to be " a poor man's shaft rocker system. "

[@mightyfinejonboy]

love how i learn and see things in a new perspective when I watch your vids👌

[@ni_wink84]

I love manton, I have a set of their pushrods in my SBC, thank you AL for helping me out! And thanks to Steve for the info on why I needed bigger pushrods

[@jamesd2863]

According to the valvetrain expert at the Oem I work for, Many times with well lubricated roller tipped rockers the roller on the tip won’t roll at all, since at higher engine speed there isn’t enough time to spin it. This is the reason you don’t really see them even in the 840 hp hellcat engines from dodge. What do you think of this Steve?

[@pete540Z]

The issue with aluminum is there is no way to design an aluminum part with infinite fatigue life. For Steel, you can do that. That's the nature of the material. If the loads are low enough (no boost, moderate spring pressure, aluminum rockers can live on the street. But on my NA street motors, I prefer steel, like that comp roller rocker you show.

[@mr.c5217]

Going to run Shaft mounted T and D on my 427 LS Twin Turbo. Pray for me..😌

[@milojanis4901]

Damn fine choice going with T&D!! They're right there with Jesel on some applications. Jesels are WAY overpriced, in my opinion. Just because they're the best does NOT mean a couple of other brands aren't just as good, maybe even better. Danny Jesel started somewhere, just like everybody else. Nowhere is it written Jesel will ALWAYS be the best. Jesel got started when he overreved Ro McGonegals motor!!!

[@milojanis4901]

Star, you are absolutely spot on. Aluminum definitely has a shorter cycle life than steel. Problem is nobody knows how much shorter. 25,000 miles? 50,000 miles? 40,000 miles? You can be 200 miles from home, and it runs like a clock.....until it doesn't, and it blows!!! Wrecker time, or start walkin'!!!😢😢

[@deniseschaller7744]

So with the roller rocker is rocking back and forth. What makes it go around is it at a slight angle. The roller rocker tip

[@Indonesia01ian]

Hi everyone. I am newly interest with automotive Do you have sugestion for me to learn more about make a huge power for the engine? Is it possible to use software or we have to research it by experimental engine ( timing, compression,fuel and so on) Actually I am a mechanical engineering student. I really love to learn Thanks

[@keefespencer1173]

It makes alot of sense what you said about the LS stock style rockers wearing out the valve guides and I've always shook my head when I see these guys out here just doing a trunion upgrade on a turbo engine where they are going to be making 1k-1200hp they aren't thinking or worrying about the valve guides or the top of the valve stems getting worn out at all SMH

[@mr.c5217]

always trying to cut cost and in the long run will cost them more.

[@milojanis4901]

​@@mr.c5217 Yup....Cheap work ain't good, and good work ain't cheap.....

[@approachingtarget.4503]

Manton I beam, hemi H beam.. Its hard for me to imagine what kinds of cylinder pressures require such pcs. Even diesels dont have this much problem with opening the valves. Are we talking 80lbs + of boost? The issues ive seen are from valves pinched in the valve guides. Leaving space between the valve tip and roller. Smashing down when they brake.

[@totensiebush]

I believe some LS guys swap the OE needle bearing for a bronze bushing... do you consider it a roller at that point?

[@AndyET]

Roller rocker has always (in my book) been in reference to the tip being a roller rocker. Swapping the trunnion bearings out for a bush doesn’t change this fact.

[@the4flatgarage]

Which rocker arm does not use roller bearings? How do you get roller bearings out of the equation? They make a big mess if they splatter.

[@Fatboypeet]

Thumbs up for the high heel Confucianism

[@stanleymasterson1135]

Nice thing about having OHC engines... the only rockers you focus on are Led Zeppelin etc

[@jeffhopper3526]

Maybe call that SMX rocker a "Raptor Claw" design. Looks like one.

[@ldnwholesale8552]

A couple of things. A 'normal' stud mount rocker is causing both drag and mushrooming the valve head. And as you said wearing out the valve guides as well. A stud mount roller rocker resolves 90% of both drag and wear. PLUS it will give a little more lift and duration with the same ratio. I once did this on SBC. Lift was aprox 25 thou more. Because you are getting true dimension V theoretical. I forget the added duration but it was more. Any one changing from a tin rocker to a roller should be aware of this. The normal stud mount rocker is ok for people running a solid flat tappet and even a solid roller up to about 7500. The individual shaft mounts are better and less likely to fail. BUT you need more expensive modern trick heads. Though I have seen Sprintcar engines running at 8500 with normal stud mount rockers with no dramas. Last, valve train geometry is imperative. Breaking rockers and or studs? Geometry is wrong. When checking zero lash the valves and use bearing blue on the valve tip. They will start towards one side of the valve and sweep over centre towards the other side. If close to the edge,more so at max lift you need to adress the problem. Or it will break things. Lash caps will bandaid the situation, not really fix it. Though in these days of 7mm valve stems they will be required whatever. Whenever checking all of this use zero lash, that extra lift catches problems. Once clearance lifts are taken away just a little more room valve to piston and on some engine deck as well.

[@buildit3924]

👍👍👍👍

[@puppygadget3189]

Thanks Steve- You the man !

[@Snake.br549]

Used to have a old 396 Chevelle with 427 open chamber heads pretty good size cam run like a raped ape won a lot of street races ever so often it would break a rocker arm but it would also light the tires up all the way past 60 miles an hour in second wirh manual valve body 400 turbo

[@stanleymasterson1135]

At least Steve never has to worry about making the Devel engine. 8 years later and the company is no closer to production.... ridiculous

[@danielsmith-ze3wy]

Thanks for info

[@thomasward4505]

You did not say when a steel rocker arm was necessary over an aluminum one. Was it an RPM number or a valve spring pressure number or a cycle life number?

[@bcbloc02]

Aluminum will fatigue eventually regardless of load. Steel can last a life time if the loads are low enough.

[@faststang89]

You have a lot more deflection with aluminum rockers as well.

[@trophbrwntrouthunter]

Apparently Steve’s been stepped on a couple time by chick in stilettos… rofl

[@600wheel]

Hey Steve I’ve got a pretty out there question but have you ever seen anybody try fluting valves kind of the same idea visually as a fluted rifle barrel but on the top side face of the valve not the part that faces the piston but I guess the backside to increase airflow it wouldn’t have to be straight you might swirl it I don’t know it might be a really stupid idea but I’m just curious and if you end up using it and getting richer I at least want a motor a very good motor with a very good blower made by Ford also a transmission and I want it installed in my car and a small percentage of the sales would be nice also

[@donmathias1705]

I am.sorry but your initial.analysis of the first simple rocker is not quite correct. If the shape of the grind of the rocker tip is correct it should not produce any lateral movement. This is because it should behave in exactly the same way as a hear tooth. As the tooth advances the contact patch moves from.. tip to root. The other tooth goes from.root to tip. On the rocker it should simply walk across the valve stem and back again without causing any physical.side thrust. If the valve length is not correct it will generate a side thrust. People do not know how to going the rockers to account for the valve position. They are light and effective if done properly.

[@Fatt-billy.racing]

I run t&d chromoly on my sbc 434 i was breaking the aluminum

[@mr.c5217]

You running boost? Solid roller?

[@Bradley_Clark]

thumbed

[@mightyfinejonboy]

love how i learn and see things in a new perspective when I watch your vids👌