How to port and polish a 500hp Nissan SR20DET head part3..

Also parts 1/2..In this final vid on port and polishing the 500 horsepowered SR20DET PART 1 http://www.youtube.com/watch?v=FhhyOdFyAcE PART 2 http://www.youtube.com/watch?v=av8yTxTm9hE

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Nissan SR20-DET Block Resurfacing
John Edwards discusses some of the reasons why aluminum blocks require resurfacing and how it's done on the Sunnen HBS-1300 @ Costa Mesa R&D Automotive Machine 949.631.6376 www.engine-machining.com





How to Port and polish a 500hp Nissan SR20DET Head Part2
*****3 PARTS***** I show you a port job on a SR20DET S13 Nissan head,plus some good infomation for you on porting these heads and on tooling tips... PART 1 http://www.youtube.com/watch?v=FhhyOdFyAcE PART 3 http://www.youtube.com/watch?v=Rdc4HdO0ZXE





Cylinder Head 105 - Valve Job Basics
Valves not sealing? Valves not bent? This is how you fix that problem. In this video I outline the basic valve job procedure. Cleaning the valves, cleaning the seats, cleaning the combustion chamber and lapping the valves in to make a better seal. Here I cover the process start-to-finish. It's the same exact process for pretty much all non-rotary combustion engines. It takes patience and perseverance to do this job, but anyone can do it. Reference your service manual for measurements and service limits. Everything else that's not in your service manual is in this video. I apologize for not having broken busted crap to work with in this video. It's more beneficial to all of you when bad fortune falls on me because it gets well documented, and many people watching these videos are looking for answers. If you have bent valves, you will discover it quickly once you chuck one up in the drill. You'll see the face of the valve wobble around while it spins. You'll see evidence of this damage on the valve seat. If it's bad, you may see damage on the valve guides in the form of cracks or missing pieces where the valve guides protrude through the head ports. Give all that stuff a good visual inspection. ...and if you doubt yourself, never hesitate to get a second opinion or consult a machine shop. They will have access to expensive tools that you wont find in your average gearhead's garage.





How to port and polish a turbo exhaust housing
I'll fill this in later. The "book" I typed in this field before didn't save. Come back later if you want to read more about the theories behind porting and polishing.




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