i was wondering how it would cost to port and polish a ka24de motor with 200,000 miles on it? how much power would i gain from the port and polish? please let me know what i need to reach 400whhp? how much? parts? $

does anyone have a head for a ka24de motor?

 

with a na ka it is almost imposible to get 400 hp... read some of the threads on the subject... get a turbo kit and build the whole motor... port and polish wont gain you much in the way of power unless you have the parts to go with it... a semi built turbo motor will run you about 3500 bucks...