This was how they were advertised.

for sale is a pair of PORTED mercedes c32 amg head also fits slk32 amg and Chrysler crossfire srt6

these heads have been ported and when done was also pressure tested skimmed polished. as you can see in two of the pictures from when it was done. they were on the car for around 3.5weeks and then decided to sell the car so took heads off.

they had been fully refurbished with new seals valves etc it cost me alot of money to get these heads done especially with them being ported.