I have a series 1 205 GTI XU9J1 engine and I'm looking to put a DKZ stock head from a 90 405 XU9JAZ engine.
I found a post by Peter T., saying this was a good combination and would have around 10.5:1 .
I dropped the head into a local machine shop ( not a pug guy ) to skim and 3 angle cut. He seemed to think that sort of compression ratio was not good for head gasket life and recomended a decompression plate to drop it closer to 9.2:1.
The car will be a daily driver and I'm looking for low to mid range torque, any info much appreciated.