You, my friend, are the entire reason I make videos; to help people learn and understand. Thank you for watching!

You are awesome to watch, I have always been interested in mechanics & cars but my choices in life took me down a different career path. Now over 40 I am still trying to learn many of the basics & I am so grateful someone like you takes the time out to help others learn - you really should have over a million subscribers! Thanks heaps from Down Under.

As a veteran....thank you for being a rider for the Sons of Liberty. You are doing a wonderful and very respectful thing....I admire you very much!

10 years later and your videos are still teaching people. Thank you! I was bless with buying a '14 Town and Country and its rocker arms failing. Trying to fully understand how an engine works. Your video was INCREDIBLY informative! Thanks again!

Good, detailed explanation... The visuals help out immensely... the foam head and the cutaway were impressive... thanks...

Pete I'm 58 and have recently become obsessed with mechanical stuff including the workings of vehicle engines. Lots of videos on the block but your video has been the absolute best explanation of how things work in the head of the block. The extra stuff on the casting was gold. Great work mate. Stew - Queensland Australia

Having one of my cylinder heads replaced and wanted information about it. This video was EXCELLENT...interesting the lost foam technique is used to make cylinder heads. Very clear and concise explanation. Thanks!

Thank you for a great description of the cylinder head and valve components.

I barely understand the teaching in our school. thanks for uploading this video I now understand. I might drop my subject and just keep on watching your videos. thanks a lot

You have by far the best youtube page. Motors are my thing and its nice to see a page that has clear hd videos and someone that actually knows what they're talking about making the videos

I always wondered how the valve stem keepers actually stayed on the valve stem, (without having to open an engine up), and you answered that perfectly, I knew it had something to do with the spring tension keeping them on, but you pointed out the taper, and the taper on the cap and my mystery was solved. : )

Nice explanation of the workings of a cylinder head. I have just had mine ported and now I know why!

What an incredible lesson, and all for free! Thanks so much!!

hello Pete! hope u having a great wknd, nice and sunny here in SoCal! B ) ok then, well even though I had previously performed this procedure, I didnt use the soap and water (good idea, thanks) so, i just performed it and confirmed. still leaking, over 50% and soap bubbles confirmed! don't know HOW machine shop performed the their test, but I'm clearly showing a massive leak at #1 cyl. didn't even bother checking the others! head is coming off, heading to shop monday with the video I took of it

I am glad you learned something. I am working on a video for blocks. The head is the only way in and out on all engines. V8's, straight 4's, V6's....every engine needs a way to get air in and exhaust gases out. Even 2-cycle engines need a cylinder head to hold the ignition source and exhaust port.

Thanks for the lesson! I’ve worked in machining (head) for 4 years and never knew the full anatomy of it.

Just wanted to tell you that you have great videos and it looks like you have a great time in your garage! Keep the videos coming!

You made my day...thank you. I am happy to help anyone willing to learn....thank you my friend!

Thank you for sharing this! I'm currently going to school for automotive technology and our professor shared this video with us. This video gave me a better picture of what is going on in the engine. It's very clear, insightful and very cool to watch. Thank you!

It is very helpful for me, i just started working in a cylinder head factory，thank you very much!

All your videos and your teachings are incredible. Thank you very much for the excellent information.

ahh finally i understand the difference between the valve seal and valve spring retainer! ! ! Thanks a lot :D

You are much too kind. I enjoy making videos that help people. If you are buying used parts, first look for any spot where it may have been dropped. Inspect the entire part for any visible cracks. Find out the return policy on any used part, if you can't return it, don't buy it. After buying it, have the head magnafluxed to check for cracks. It is worth the investment and you will be sure the heads you bought are solid. Good luck with your LS!

That is really cool for you to say and I really appreciate it. Thank you for watching...it is a blast just to hang out in the garage.

This was like the best seat at engineering class free of charge. Gracias.

Best explanation of how a Cylinder head works ever! This is pretty amazing. Gotta share it as much as i can.

Thanks Pete! I learned a lot. I look forward to watching more of your work

Highly detailed, amazing video. Thank you!

Fantastic video, great detail, very informative and educational. Thank you

thank you for this detailed video, really good explanation sir. I think this narrows down my list of issues I been having with a cylinder head that I just got back from the machine shop that is STILL leaking "moderately" through the intake after performing a leakdown test. basically the only thing actually sealing there are the intake valves if I'm not mistaken. I'm thinking if the cam, cam guides, or lifters are damaged/won out, that it can be enough wear, to not let the valves seat properly.

Nice vid. Informative and explained clearly. The lost foam part was very interesting too.

Thanks for the awesome video!

awesome video!!! I've been watching your vids over lunch the past few days and I have to say, you have a very clear way of describing things. A lot of people fall into the trap of taking for granted things that they know, and then fail to communicate. You make it very simple for the novice to understand because you don't leave out important details. SHAKE n' BAKE!!!

Cylinder head is bolted to the top of the machine body and becomes the top part of diesel engine. Its functions are as follows: 1,Close the top of the cylinder sleeve; form a sealed cylinder working space with piston and cylinder sleeve. 2,The cylinder sleeve is pressed in the correct position so that the piston operates normally. 3,Install all kinds of diesel engine accessories. such as injection valve, intake & exhaust valve,cylinder starting valve, indicator valve, safety valves and valve rocker arm device etc. 4,Arrange intake & exhaust, cooling channel. etc. In the small high-speed machine of cylinder sleeve is also decorated with swirl chamber or precombustion chamber, so the hole and channel in the cylinder sleeve is various and make its structure more complex shapes.

thnks Pete! I love my hobby! and Im always interested in hearing others experiences, trial and errors, as well as triumph over tricky issues!!! keep doing ur thang, ur videos have inspired me to start making my own. : )

Incredible explanation! Thanks man!

Excellent explanation and cut-away, thanks.

This is by far the best explanation I have ever seen. Thank you sooo much

Great video sir. Extremely informative and love the details provided via the sawed off head.

Wonderful explanation on cylinder heads

Thanks for the upload, this is the best I have ever heard.

Wow Thanks a lot sir, it was my first time doing my own do over of my cylinder head and my car runs like a wildfire. The video was a big help. AL the way from South Africa

This is so awesome. Great tutorial. I am teaching my son engine basics and this is so simple and thorough to understand. Please make more videos.

Awesome video! Learned a lot. Thank you very much!

This absolutly fascinating I always wondered what it was like inside.....thank you

Man, I dig your videos! Thank you so much for your instruction! This is invaluable information for a greenhorn such as myself!

I'm glad you like it. It really helps diagnosing problems if you understand how they work.

Thanks for these thoroughly explained videos Pete....excellent, simply excellent. Albert Einstein quotes: If you can't explain it simply, you don't understand it well enough". Surely you understand and can explain this complex engineering clearly. Great, great, great job! I will simply keep watching these videos. I am not a mechanic....just love watching how the engineering in machines work.

YOU HOPE I LEARNED SOMETHING! awesome explanation! this is the kind of stuff us newbies need! once again! awesome explanation!

I'm always here to help. Thank you for watching!

Dude you literally have like the best car KZfaq channel of all time. Itd be cool if you worked on things such as transmission and suspension though.

I'm new to your channel and I have watched a good bit of your videos. They have taught me so much of things I already thought I knew. They are very helpful and I'm sure I will continue watching them and I might be giving you a call soon.

Thank you very much! Very well explained. Waiting to see more videos like this. All the best to you!

Watching in 2019 & still useful! Thank you 😊

Thanks a lot Pete, for taking the effort of making these vids.

Straight to the point ! 🙏🙏🙏❤️ Much love !

very informative. thank you

Dude, you are awesome! I'm 3D-modeling an AC Cobra 427 for animation, including the technical stuff inside. you already helped me a damn lot! thanks sincerly, Dave

Simply amazing....and the manner how it is explained it clearly gives you a picture of how this works. I recently purchased a 2002 mazda and I'm having headaches....it started with radiator running hotter than normal. The mechanic looked at it and there was trans oil in the radiator and reservior. Changed the trans coolant, flushed trans, actually cleaned the valve body. I am still having the two issues which is shifting problems especially when starting to move the pickup, sort of lack of compression and then it speeds up. The radiator also runs hotter than normal. So I just scratch my head and my farm really needs the pickup to do some work. I fear the whole thing may be damaged.

Wow, not only are your youtube video's entertaining but very educational. Carry on the good work! :)

Another great video. All your videos are very informative.

Thanks William...I will check it out...thanks for sharing

Thank you for your videos men they are all great. I am in college and you are a great help to me. Thank you again and keep it up 😊

Great vids Peter. And nice projects.

That is really cool Austin....thank you very much. I try my best.

Dude. Very good explanation. Thank you

Thank you sir for a great detailed video!

This was incredibly helpful! Reading about this from my automotive book with minimal photos is difficult to really understand it all. This video gave me even more information than I was looking for. Also, did anybody notice the little buggie on the bottom right side of the screen that got his "15 seconds" of fame starting @11:07 lol?

Your explanation is so clear very easy understandAnd with the way have shown with Engine Model How I not learn something from you Thank you for sharing your knowledge.

Dude this is truly a perfect video thank you so much this solved all my questions

doctor: you have 15 min's left to live pete: 0:03

Excellent job. Thank you.

Very informative. And what a cool guy . great job

This was very informative. Thanks Pete

Thanks, that was very helpful!

That is awesome...let me know when you do so I can check them out!

very informative, i had known that the head was basically the cap to the engine, and the only way in and out as long as we are taking OHV, SOHC or DOHC, but i always wondered how they made the coolant passages, and the ports

really good stuff !!! u really made it easy to understand. thank u.

Another great, informative video, thanks!

FR500's, long tube headers with X pipe and a simple CAI.... I have Catbacks only, no mufflers. Turned 280 HP into 390... natural asssssspiration. Not much money, not much work. Awesome for a V8 GT

excellent video

Thank you very much for this video. very helpful

Bro your explanation is awesome 👍

Invaluable. Thank you so much

great info, thanks for taking the time to make this video man! cheers! great job!

ok, how you doing Pete! thanks for the quick reply, well it is a kia sephia 1.8L and I installed new rings, cylinders were in good shape, sent head to machine shop for repairs after engine overheated, checked block with straightedge, performed cylinder leakdown test after recieving head back from shop, no intake or exhauset manifolds installed yet when performing ldt, but can actually feel gust of air coming through intake valve!!!

Excellent video, thank you very much for uploading! You just got yourself a new subscriber!

you were a great help, thanks a lot

love your videos! Very informative! Subscribed :)

Great video, really interesting thanks

Lost foam is about 15 years old I would guess. Many parts are made like this for the cost and accuracy. Pretty neat process.

excellent video!!

Really helpful thankyou

Very helpful. Thanks

Great video, thanks

Getting valve collets off is a right ballache sometimes when the spring has pushed the retainer onto the collets, locking them into place. If anyone is having trouble removing them, try adjusting your spring compressor so it only moves a small amount but puts more pressure onto the valve retainer. *This cracks the collets loose.* Once the collets are cracked loose, you can then adjust your spring compressor to have more movement so you can remove the collets fully. Makes the job go a whole lot easier once the collets are cracked loose, just like removing wheel hub nuts.

very informative video. thumbs up

great video, very good info

fascinating, thank you for posting

amazing video，its really make me understand how cyclinder head work😁