S58 teardown and build up for M Powerhouse! AND our new CNC port! 

Thanks a lot 😊

crazy right!?

thanks Goyo!! Smooches from afar

@@headgames 😍😘😘

thanks!

Send it!

Sorry you took the drive, but that could have been solved with an email or a phone call and then you wouldn't have wasted all that time.

We don't work on that head, sorry.

They already have cams and development is still ongoing.

​@headgames oh ok. Keep up the great work.

​@@headgamesWill you share comparisons and flow sheets between stock and your cnc ports? Also difference and increases in port velocity? Lastly has the swirl cut on the valve you showed replaced back cutting the valve stem above the face? Back cutting used to increase velocity significantly back in the day. I'm a former race engine builder just trying to learn about modern engine development techniques. I've been gone from the industry 25 years.

@@daltonhanleyjr4142 We don't share the cnc numbers, but we might show the gains in another video using a graph. Showing airspeed would be a big animal to tackle because it is such a technical piece. The valve shown in the video was an exhaust valve, and they don't get a back cut ever. Just intake. Welcome back after a few decades! Lots of the same principles apply to the new stuff except gasket matching. I think back when I did the BBC stuff at Musi's it kinda made sense but we still port matched the intake manifold to the head and not to a gasket. The new stuff, we don't usually touch the cross section at the flange.

​@headgames I understand about not sharing the CNC port numbers. I didn't realize that was an exhaust valve. They are very close in size to the intake valve. .Im curious about your port velocity. I think the young people need that presentation from you. It will help them realize flow bench numbers arent everything. Ive seen too much fundamental knowledge about competition engine building being lost, because everyone thinks dropping a big turbo on a stock LS , Coyote, or B/S 58 engines is all you need to do to go fast. If you are not making a 1000bhp, your car is a POS. These guys dont know how good they have it. Back in the day you really had to work extremely hard to achieve results that are easily achieved today. I come from NHRA Comp Eliminator background/class. So you know first hand about what we would do to find horsepower. I nerd out on this type of stuff. I love your channel keep up the great work. I won't bother you with any more questions today. Take care.

- we use a guide that has a stop OR we can measure the guide height with a caliper. They should be within .010 of each other. This is not a critical thing, you want them close but it doesn't have to be that close. - You can absolutely upgrade the spring kit with stock cams Glad you enjoy our videos! Thanks for watching!

to do the CNC port, bronze guides, valve job, mill and assembly is $2970+parts

we do not