How to: Build a 9000-rpm SR20DET Head

How To: Build a 9000rpm SR20DET HeadBy: Taesoo Kim (ILikeMy240sx)

Hello everyone,

This is my biggest “HOW-TO” thread where I will show you how I prepare a “bulletproof” SR20DET cylinder head that you can rev to 9000 RPM+ if your bottom end can handle it.

I will show you how to disassemble a SR head properly, replace valve stem seals, upgrade valve springs + retainers, install aftermarket cams, install Tomei solid lifters and shim them properly, and how to assemble everything together properly.

All the work that I am doing to the head is with the head out of the motor. But you do pretty much the same thing except if you are doing this with it still attached to the block, you NEED to pressurize the cylinders so that the valves don’t drop.

List of parts that will be installed
1. Tomei Solid Lifters
2. Tomei 270/270 Solid Cams
3. Brian Crower Valve Springs
4. Brian Crower Ti Retainers
5. Fresh Valve Stem Seals

Ok here it goes…

Read the How to Build A 9000-rpm SR20DET Head