 These are all the tools we...  These are all the tools we used: A pneumatic die grinder, a carbide bit, a cartridge roll, a flap wheel and shank, lube, Dykem, digital calipers, a prop-up peg and a light table. |  This is what our Z6's intake...  This is what our Z6's intake port looks like in stock form. |  Ricky uses a wax-like solution...  Ricky uses a wax-like solution to lubricate the carbide bit before use. |
 This is the raw finish of...  This is the raw finish of the port after it has been opened up. |  Ortiz uses a flap wheel to...  Ortiz uses a flap wheel to give the port walls the correct matte finish. |  The texture of the port is...  The texture of the port is not polished to a mirror finish. The matte finish helps keep fuel from sticking to the port walls. |
 Ricky ports the bowl section...  Ricky ports the bowl section with a carbide bit first. He'll clean it up when he does the combustion chambers. |  The intake port finished....  The intake port finished. Isn't that a beautiful sight? |  The combustion chamber only...  The combustion chamber only looks dirty because of the metal shavings from the port job thus far. This is the shape of the chamber as it comes from the factory. |
 The carbide bit is used to...  The carbide bit is used to open up the bore and take material from above the valve |  This cartridge roll is about...  This cartridge roll is about 80 grit. It acts as an intermediary between the carbide bit and the flap wheel. |  Ortiz puts the finishing touch...  Ortiz puts the finishing touch on the chamber with a flap wheel. |
 This is what the bowl sections...  This is what the bowl sections look like before the flap wheel process. |  Ortiz uses a long shank and...  Ortiz uses a long shank and a flap wheel to clean up the bowl section of the port. |  The finished combustion chamber...  The finished combustion chamber has been opened up to 78mm, the valves have been deshrouded, and the casting flaws done away with. |
 The exhaust port is pretty...  The exhaust port is pretty good in stock form. Only minor changes need to be made. |  The carbide bit is used to...  The carbide bit is used to raise the roof of the exhaust port and open it up for an easy exit. |  After the carbide bit, the...  After the carbide bit, the surface is pretty rough and messy. |
 Ricky takes out his trusty...  Ricky takes out his trusty cartridge roll to clean up the mess. |  Now doesn't that look bet...  Now doesn't that look better? |  |