Homemade 4 Valve 7.2 Liter Engine Cylinder Head Update 1/27/2024

[@Metalcrafter]

Thanks, Greg. I'm so glad you're taking the time to document what Pete and Kevin are doing. Every episode is extremely interesting.

[@GregQuirin]

Your Welcome!

[@rockyrivermushrooms529]

Old school gear heads

[@maxp9046]

Best engine channel on KZbin. It's very refreshing to see smart people work compared to another cookie cutter LS swap

[@GregQuirin]

Thank you!

[@marklowe330]

These two guys are just off the charts, radically smart. Love these videos. As a machinist, I truly appreciate their work.

[@melvinhowie7273]

Man these are truly some of the best videos I’ve ever seen.

[@bobanppvc]

This is perfect example of old school thinking.New builders are too much into details.Here we see 2 guys that are working with what they have and always finish task.

[@johngato737]

Can’t get enough of these guys.

[@arneminderman3770]

Smart as hell!!

[@kobusdutoitbosman6240]

You’ve got maestros in action here Really wonderful to see feel blessed Keep Going pse🥂 👊🔥 🪖

[@Trilogy-entertainment]

Try showing other youtubers this page coz this is insane...needs to be way bigger really...keep it going with the awesome knowledge thanks

[@GregQuirin]

Thank you! I’m not sure how to grow the channel. I’m not a full time KZbinr I post videos when I have time. I think there is potential for lots of growth. I have to figure it all out. Thanks Greg

[@stevewelborn8744]

It is mind blowing what these 2 guys can do.

[@revoltsystems]

Love visiting these guys, its an amazing shop and they have forgotten more about engines than most of us will ever know. Keep up the great and inspiring work!

[@LimestoneCoastCustoms]

Great stuff again! Thanks for the update Greg! 👍

[@lanceneuman9528]

Thanks

[@9521jan]

The more i watch Pete and Kevin, the more i want to visit one of the events and meet you all in person. The amount of work and dedication they have put into these creations is incredibly inspiring. Thank you Greg for these videos. I look forward every week into an update. Currently my favorite videos in the internet. Its 100% legit and them being so willing to share all these crazy projects is fun to watch.

[@MJPilote]

Awesome content as always! Really a pleasure to be able to follow how Kevin and Pete make the engines and what not.

[@MrMrBigro]

Men this is really awesome

[@daleolson3506]

Amazing

[@oldandboosted]

That cantilever rear suspension is fascinating!

[@kcraig51]

This is what real engineers look like. The so called "engineers" where I work can't even sharpen a drill bit!

[@Baribrotzer]

This is the kind of thing that Harry Miller or Fred Offenhauser could do, and did a hundred years ago. Pete and Kevin have fancier tools, but the job is similar. Engineers tend to be more specialized these days, don't need to do this kind of ground-up work, and usually don't.

[@marttimattila9561]

Ammount of work in details is amazing. Two guyis is better than one because it dosend always "kick in"

[@juliantullier5610]

great content, thanks for sharing

[@mrwolsy3696]

Magnified scale irl heads.

[@MrRuymachado]

Great job Greg you are getting better and better

[@dunbarautomotive]

Just amazing 👏

[@xozindustries7451]

Such amazing work they are doing, I’m excited to hear it run. I would have thought the ends of the heads would be taller to incorporate the cam caps in to increase valve train stability.

[@gasngowithsnow]

These guys are amazing 👏!!!

[@lasskinn474]

thanks again for making these vids!

[@fourfortyroadrunner6701]

Well your cam lecture next to the Great Big Loud Chattery Lathe was a fail, LOLOL. I am so awed by whatever these guys do.

[@GregQuirin]

We just let cameras roll, 100% organic content! 🤠

[@bimocular4312]

Please get a young apprentice or two to pass all this on to! I love old guys with passion and skills like these blokes

[@cooptroop5]

Cool stuff!👍

[@dondotterer24]

Have you looked into David Vizards poly quad 4 valve modifications?

[@cam3002]

I was think exactly the same. DV is a lot smarter then me so assuming it is a good idea. But maybe these guys don't care about the lower RPM torque increase?

[@jetcitynorthstar]

This is my favorite kind of content. I've always heard cams use a very specific kind of iron, is it difficult to source?

[@knutbus]

What material is the shaft they make the camshaft from?😊

[@stacy6014]

I think he said 8620? in a previous video

[@chrisTiFur76]

Amazing work, what machine do they use for the cnc operation?

[@bobroberts2371]

They have a basic CNC in the shop they are working in the vid to prototype / prove out programs. There is a Haas VF mill in another building ( check the prior or maybe 2 vids back )

[@anridemirdjian5011]

@Greg Quirin Hi, It will be interesting to find out how heavy this V12 is. Given its build all out from forged 6061(?) aluminum with sleeve liners, seems like it will be on the heavy side. Not sure if they scaled this engine ?

[@seancollins9745]

for land speed racing, weight is not a issue, aerodynamic drag is a far bigger issue.

[@jamesnash1180]

GM FORD CRRYSLER NEED YOU FELLAS. BAD

[@kevinbraun6272]

We’re to old!

[@bcbloc02]

Having turned a bunch of long 8620 cam blanks myself I know how tedious a job that is.

[@jareknowak8712]

👍

[@brianbloom1799]

So These Heads are a Hemi Design Cylinder Head is that right, Whats the Compression on this Motor.

[@manitoublack]

where can you get these valves?

[@kevinbraun6272]

Ebay

[@stephencurry8552]

The Merc V-12 is "Legit Street cars." Also should be mentioned. The guy making those videos worked for Mercedes. And he has yet to get that car working properly 3-years and counting.

[@BerlinghoffRasmussen]

Are these heads as durable as cast heads? Are they only designed for a few runs?

[@bobroberts2371]

Have a look at how Steve Morris does heads for his SMX engines. They are machined from a solid block with pockets / cover plates / cross drillings for water flow. Blocks are made from a solid block too

[@kevinbraun6272]

Our heads on the model A, 3 liter, and V1200 were all machined from solid billet with cover plates and cooling holes drilled. We decided to machine them in pieces to make them lighter and improve the cooling.

[@bobroberts2371]

Cylinder heads. Have a look at how Steve Morris does heads for his SMX engines. They are machined from a solid block with pockets / cover plates / cross drillings for water flow. Blocks are made from a solid block too.

[@kevinbraun6272]

Our heads on the model A, 3 liter, and V1200 were all machined from solid billet with cover plates and cooling holes drilled. We decided to machine them in pieces to make them lighter and improve the cooling.

[@seantheberge5456]

I would imagine they are aware of billet machining processes... Steve isnt the first one to do it.