How To Teardown, Rebuild, & Dyno A Small Block Chevy Engine 

My Dad even does Pats excited hand rubbing thing lol

If you ran city water from a tap and out a drain as apposed to recycling the dyno water like that the shops overhead goes way up, dyno session price goes up for customer etc... But some shops do have city water plumbed into the system for certain overheating/heat soak situation pump city water threw because it's MUCH colder temp than the tank water

ru-vid.com?q=https%3A%2F%2Fwww.PowerNationTV.com&v=kZPdbEZkW1g&redir_token=VPZtBYB1ZLg_EbyCF40cMWwbIWV8MTU2MjExNDM4MUAxNTYyMDI3OTgx&event=video_description

Stingy dyno

x2

I agree, that is pathetic. I've seen much higher numbers with dual plane less cam 'hydraulic roller' and smaller heads.

I’ve seen 550 from a engine with a performer RPM dual plane lol

I’ve seen 4000 hp from a straight six with just head and cams .... not impressed

funny

For real ive seen mildly built strokers make that kinda of power with gasket matched vortech heads for way less $$$$

I was about to comment the same

Look on the bright side after all the changes they finally made the number they thought they would originally if it was me I'd of just put 1.6 ratio rockers on it and called it a day

The comp port 195 heads flow over 300 cfm. Dart 215 flow 274 lol.

Thats what i was thinking, the dart 200s

Nate Lorimer then you don’t know what you’re doing, you center it with the thinnest pattern possible to keep from side loading the valve and wiping out the guides.

Then you got your pushrod length afu

@@dirtfan05 I do. I have seen all kinds of heads and have others agree. Center if on a wider pattern is location and angle of rocker stud. Narrower pattern is in the fulcrum area it needs to be. I do know what I am doing and can reference others that have said exactly as I said over on Speedtalk And no on the narrowest patern it is NOT awful. It is right where it needs to be

@@Onewheelordeal no. Narrowest pattern is where it needs to be for the fulcrum. What's all fucked up is when you want a centered pattern and it ends up wider due to valve and rocker stud geometry afu. Your looking at it wrong. The valve stem length, angle and rocker stud angle off a slight bit can move off center with the same pushrod. You still want narrowest pattern

www.google.com/amp/s/www.460ford.com/forum/37-engine-tech/153563-mocking-up-pushrods-centered-narrowest-sweep.html%3famp=1

yeahitskimmel you never been in a garage before?

Ron Townsend words are hard.

@@bigboreracing356 bugatti says hold my beer....304mph

@@bigboreracing356 just set it early August. Lasers detect road surface and adjust ride height of car for perfect height at that speed. There's couple videos on RU-vid about it. Something about couldn't make it official cause for official speed records you have to turn around and drive opposite direction and hit speed again but test track only ever been driven on in 1 way so pavement wore in 1 direction and would've tore up tires trying to go opposite direction.

Probably could have took 37 degrees at 10 to 1

Brett Lyde it’s a product supported video. It’s meant to make people buy these go fast parts lol It’s a commercial

Yes I realize that it's one big commercial with commercial breaks

yeah, horrible plan, totally skews the baseline.....

I thought the same. Either the dyno is conservative with output or that is extremely disappointing with that much money in parts. I think they threw wayy too much cam at it for the compression. Basically with the overlap about 7 to 1 is the result. Probably would have welcomed a supercharger with less ignition timing

@@bigboreracing356 i like and understand the video also, but that cam is way bigger than needed to make 500hp on it. ive seen and done it with less cam they have on her too

@@bigboreracing356 nah it wont just depends on the heads your running and rpm. that cam is plenty big for 500hp hell it had 260 duration if you cant get 500hp with that something else is wrong. the heads they have on this set up are not that good. E street heads. need RPM at least victor jr would of made it easy

@@bigboreracing356 It is basically the same camshaft because they changed from a Hyd to a solid , the only change would have been in the valve lift

@@bigboreracing356 shut up stupid

These are dart 215 heads not e street

the heads raelly cant flow it to do500. i put them into a calculator online from Wallace racing HP based on head flow @ 28 wanna know what it got for 383 inches? 487...crazy, right?! they need an AFR 195 eliminator street heads MINIMUM or a head that flows 270-280 CFM @.500 lift to do 500+HP

matt vorhees it’s a commercial for summit and other brands. It’s literally filmed to make people go out n buy go fast parts for their 350

3500 stall fixes that lol...

Didnt you hear it on the dyno??

@@rudde67ssm62 3500 stall 'sucks' to drive on the street.

@@rodpalm6398 no it doesnt...smh. quite the opposite

They didn't spin it past 6800 They said they werent trying to set the world on fire or else they would have made 500

mrhazel spinning it past 6800 wouldn’t matter as much if they had more compression there would be more power all over the place with those heads and especially up top

@@nathanwood1567 11.5 to 1 would not have matter either. Maybe it would have made ALMOST 500 but your not gonna get that much more power with another point in compression over the compression it has now And if you have a solid roller that doesn't spin past 7000 there really isn't a point of having one. A hydro roller will do that

You would shit yourself if you saw what actually happens in the industrial world.

Came from the earth goes back to it.

They're not spinning it that hard

I agree, but the max flow of the pro 1 215's is only 274 cfm. Some afr 210's would seriously wake it up.

Yea, those heads out the box are prolly holding it back, bigtime Some port work or btter ported heads would put it over 500 easy.

@@biggregsparks8364 274cfm should support 550+HP.

@@72troy455 with the whole combo well thought out. My ported gen 2 lt1 stock castings flow 284 at .650 lift.

@STREET RACER go home you’re drunk. No one gives a shit about your third gen hamies.

www.summitracing.com/parts/pro-66849?seid=srese1&gclid=CjwKCAjw36DpBRAYEiwAmVVDMBqTjIq4bH3ad3Uat-oihZlLP_k97v8xzDL8xQIayv1o5_y3B301yxoCKY8QAvD_BwE

Um.. probably just another bronze distributor gear lol everything they name by brand is most likely a sponsor

An 850 wouldn't have got that much more It's probably in the valvtrain or ignition. They only had 33 degrees I would have thought 36

rotary engines dont make 1000hp without a dose of nitrous or turbo/super charging. are you comparing naturally aspirated to naturally aspirated? what are stock rotaries? 250~ hp? the difference is the chevy actually makes torque.You could turbocharge a smallblock chevy to 2500hp. also,dont go by this channel for serious chevy horsepower lol. they didnt optomise anything.

@@a4000t yeah i know rotas need turbos, just like the worlds fastest v8s need blowers. it still just blows my mind how big v8s are and how many moving parts they need. here in aus even 6 cylinders and 4 cylinders pump out huge power. with 6s running 5 second passes now, rotas knocking on the door of fives, one second behind the worlds fastest top fuelers, i am suprised people even bother with 8s anymore. i know people like what they like, i just cant get over how massive these v8s are and how much space they take up, then they are placed in heavy vehicles! it just goes against motorsport principles, power to weight etc. but thats just me!

@@davidhusband5022 The v8's are big to make up for lack of turbo charging etc LOL. The amount of moving parts in a piston engine is friction. Realize you can build a typical 632 chevy,with a simple carb,street compression and no turbos etc and it will make a 1000+hp and at least 800ft lbs of torque.Small blocks do 650HP pretty easy too and treated right they last forever. its relatively simple to do.again no naturally aspirated 4's,rotaries,etc can do this,its cost effective for the backyard mechanic.Time marches on and these dinosaurs show their age but there is still no mistaking the sound of a good v8. You can do anything u like to a rotary and they sound horrible,hurt the fillings in my teeth when they wind up. Of course sound is subjective and some think they sound good..go figure :) put one of these rotaries in a heavy vehicle and see how it goes, since they make little torque,there is a reason they are always in 1500lb coke can cars.

Actually its equal to a 2.6 piston engine cause of two chambers with a charge at once.

What a dumb comment....you are comparing to completely different engines. Rotary engines are a piece of junk that you need to spin at high RPM to make any power, plus adding a turbo. See how long that rotary lasts compared to this V8 that doesn't need to spin that high to make decent torque, and HP. By the way, this engine is not huge, it's merely a stroked 350 chevy....

The dart 215 heads suck. My hand ported gen 2 lt1 heads flow over 10 cfm more.

@@biggregsparks8364 I agree, some better flowin heads would make a huge difference.

bennettBennett alot of people build 383 strokers, then put whatever aftermarket head they can afford without knowing the lift flow numbers. Not all 383 strokers are the same. Stock headed 383's are around 325-375 flywheel, all the way to over 700 horse for a drag race only setup.

@@biggregsparks8364 I see dirttrack 383s with modified vortec heads making 530-540hp. 350s over 510hp with ported vortec heads. Seen a 357ci drag engine with ported 215 iron eagles make 580+hp with a solid flattappet cam. 13.5-1 compression.

@@72troy455 to make over 600 n/a takes a 320 cfm cylinder head with 7000 rpm cam

They did

Yeah the re runs

They are the non cnc 274 cfm heads.

@@biggregsparks8364 274 cfm should be enough to get it done ,something was going on there

@@kenray6008 my gen 2 lt1 factory castings ported out to 284 cfm at .650 lift, and has less port cc. The non cnc dart 23 degree heads aren't that great. My calculator says it would take roughly 308 cfm of head to get it to 550 horses.

@@biggregsparks8364 you know that motor should be done more on each dyno pull than what they claim

@@kenray6008 maybe, but is losing about 8 percent of power from 10 to 1 compression and small .540 lift cam and crappy heads. Change them 3, then over 500 horsepower no problem.

Lolwut? Your ET will definately go down lol yea you will notice 40hp! 8 to 10? Probably not

Its a great show for someone who has to much money and not enough sense or if host a tv show and get all them goodies for free lol

@@walterstanfield3662 plenty of guys who have it to spend. Just think it's gotten too far into informercial for summit

They put a better plan for better oil scavenging at high rpm to make more power.

@@biggregsparks8364 I know that. I'm saying when they Dyno the motor the first time it's got a black pan like the one they put on. When they test motor apart it has a basic pan an is orange