G'day chris gu. Welcome to the site, enjoy your stay. Sorry can't help you about the motor though there are more than likey a few people in here that could.
mate i had a friend here in wa that wanted to replace his, he found it cheaper and easier to do an engine transplant to a 5.7 litre holden v8, better fuel economy, more power, more torque, and a better note out the exhaust