Awesome video again Brian!! I have a question for the master please? For a 302 windsor rebuild with forged scat rods mahle forged pistons all studed block, 3/4 filled hard blok. Is .027" quench cylinder head to block, too tight for a street use 5000rpm slugger? I know 35 thousands would be sweet.. But is this just too risky?

I noticed on your chart that piston position(s) ATDC were farther down the bore than at the same crank degrees BTDC. Why is that? Great demonstration. Thanks

Plenty of big block drag race engines use a similar technique. All of the sharp edges on the piston dome are smoothed over, and a little notch carved out to index the spark plug.

Thanks Brian The know all know nothing brigade love to point out delusionary pitfalls A little bit of knowledge is dangerous

Thanks for this great video!

I already understood this very well but that demonstration was great.

Thanks Brian. Great explanation.

That valve desrouding thing you did to the piston is a very cool idea i will try to do that to my engine next time because in our 2 barrel application i think every little bit of detail matters and every little things help and once all those little things combined can gain quite a bit so again thank you for sharing your details

Mind blown again 😮. Thank you👍

Wow this a very detailed and I learned a lot from it. So thank you for sharing your information. I do got a question about compression ratio though I heard 2 sides of the coin now I don't know if this has to do with engine displayment like big vs small engine or 2 barrel application or whatever the case is. I hear that 14.5:1 compression if you go higher than that you won't gain much or nothing or much loose. But yet 410 sprint cars engine are well over 16:1 compression and make 950 to 1000hp. So what do I believe plus 360 sprint car engine I guess are 14.50:1. So I don't understand so I wonder what compression ratio you would target I run a 2 barrel 360 non wing spec sprint and gonna run 50cc chamber iron heads so wonder if I go 15:1 compression would that be ok. I wasn't sure. Another thing to you just scared me about my own engine since decking was mest up 1 bank is .032 clearance and other bank is .043 cleaning because they didn't check before decking. So I rev my engine over 8000rpm or try to lately it hasn't been doing that but luckily only 1 race left so I am afraid my piston is touching the head but I am wanting to take it apart and re do it Eric Weingartner didn't like the head anyway because of how mest up they were

Please stop wasting your time and energy arguing stupid keyboard warriors leaving comments... You are giving awesome information and share years of experience, don't worry about the dumbasses, they don't deserve any of your precious time. Thanks for your dedication educating us gearheads to help us build better engines. French Canadian here watching from the north shore of Lake Champlain, 5 miles of the border at the line separating Vermont from New York... ⚜️🇨🇦

Great illustration !

Even if the mods cost some cfm or HP the benefits of preignition resistance alone make it worth it to me. Aint gonna make no power with rods hanging out the block😂

This really drives the concepts home you’ve been articulating in the previous videos. Thank you for sharing this knowledge for free. I’m subscribed and I always like. Turned my fellow CT engine builder friend on to your channel.

Thanks for taking the time to set up that demo, it was nice to actually see how close the valve was getting at different positions! You may have saved a few guys from "kissing pistons".

I know thefeeling I'm a wood butcher

Good display by the way. As a visual learner it helps a lot to see what I am hearing.

Incredible content Brian. Thanks so much and congrats on a strong showing on the cam challenge! This is the stuff NO ONE ever shares.

Visually it looks like that part between the valve reliefs should be removed or heavily tapered to give the air at the back of the valve a path into the center of the chamber.

Have you assembled hemi race engines, Or only wedge type engines? Nice cross sectional presentation.

People like to act like they know what they’re talking about that’s how we came up with the saying “know it alls”. And I hate sheetrock and woodworking also. I’m on Long Island NY and had a foot of water in my house from Sandy and that sucked!! I had to cut 2’ up in every room. Good thing my house is a small 3 bedroom lol. Great videos and thank you!

Just wanted to say that these videos are appreciated. This demonstration was really helpful. I'm definitely a visual type of guy so I thank you for that. that being said, would you have made this video if people didn't doubt what you said? Either way, I'm glad ya did.

Hi, your cut away is a real 2x4 upside the head. I think you should offer free 2 foot long 2x4s to anyone who thinks you are wrong- Maybe you should autograph the 2x4 too? 60? yrs ago, Smokey Yunick had a flow bench that included the entire engine. MAYBE?? he saw the same thing 60? yrs ago?? and lol I am sure you have never done any flow work with the piston like we see it in your model- lol R.E the cam challenge, I wonder if. maybe the difference between how you set up pistons etc AND the way Eric had HIS ENGINE set up influenced your cam spec choice ????- Like Rosana dana said, it is always something else..

I want to say this is the first time I seen the head split so I could see everything going on……. I think that was cool as sh!t!!! And damn that’s CLOSE…… probably could squeeze a dang hair in there. Awesome video

Great information Brian, I noticed that you didn't have the 045 clearance at TDC b but point well taken. Could n really see it at 10 degrees ATDC it is hard to get flow across the short side at low lifts

Food for thought! Very interesting! Thanks for sharing your knowledge!

Very good presentation, i learned something, hope the nay sayers did also !

Yes Brian, people’s are stupid! We cut open an old block & head decades ago, so you could actually see where everything was with the parts being used! The old guys told us, you want the piston to just knock the fuzz off 😝😝😝😝!

Oops!! Thats what my piston looks like in my gx200 clone engine! I assembled a ratio rod engine that +.008 pop-up and a .032 copper gasket using a forged alloy rod. I'm new and slowly learning, thank you for sharing your knowledge!

Are you only cutting the intake valve relief

Keep up the videos I'm learning something new every time, exp Especially that the only ones that doubt you are just Jealous and wish they was as good as you are.

Well explained, thank you 👍👍👍

HEY EVERYBODY SOMEBODY POINTED OUT MY FLAG IS BACKWARDS AND I JUST WANT YOU ALL TO KNOW THE REASON IT'S THAT WAY IS BECAUSE THAT DOOR HAS A GIANT WINDOW THAT FACES THE MAIN ROAD SO IT'S TURNED THAT WAY SO IT WON'T BE BACKWARDS TO THE PUBLIC. BUT I'M GLAD THERE ARE PEOPLE OUT THERE THAT KNOW THAT ABOUT OUR FLAG.

Very good video makes me laugh when knuckle heads question a master builder's advice I wish I saw this sooner

10K is quickly approaching. With content like THIS, it'll be in the rearview in short order. Take care.

Engine building gold!

Great information......thank you

This was very eye opening

It would seem that the increase in cylinder head flow from smoothing out and laying back that valve pocket canceled out any loss in compression ratio because you filled the cylinder with a little more air mixture

Of all the things the legion of OEM engineers took into account designing the engine this is probobly the place where fiddling with the dimensions has little to be gained. Changing from a 5.7 to a 6 inch rod in a SBC has to be the most pointless mod. If you are dead set on a 6 inch rod small block then go get a mopar.

I thought it was "stars before bars"

I bet the people making these comments are little kids, or have never even put an engine together.

I’ve been waiting for some more Salter Racing tips n tricks. Thank you again sir and god bless you and your family.

That was a good video. Nice hand crafting. Whether it's welded surfaces or engine building, sharp edges on metal are no good. It seems like that piston valve pocket created a wall around the valve head as it opened and laying it back removed that wall.

awesome stuff

Thank you for taking the time to make that very informative video. I am going to watch and digest it a couple times and I'm off to watch your other videos. I'm no novice, but I always listen carefully to someone with your experience and successes. I have a question though (and maybe I'll find the answer in a follow up video making me "that guy", but I gotta ask now before I forget). I thought the "chop" or whatever you wanna call it had to do almost exclusively with the intake valve closing timing. So at lower rpm the there isn't enough inertial energy in the incoming airflow to "pack" the cylinder causing a reversion back though the intake. I'm confused how does it cause a misfire as you stated?

get a better engine it won't be a problem

Very interesting !!!!!!!!

Do you need a high volume pump when you make those oiling changes?

Thanks, looking forward to see all the stuff in your suitcase