All original until I blew a head gasket @ ~269,000 miles. I found it was cheaper to go JDM replacement...and thought I'd build a monster motor...BUT I got distracted. Turns out my original motor specs out like low mileage (maintenance and synthetic oil I guess)...so it sits in my garage...I've been robbing accessories/pieces for the past few years...but its "preserved/oiled" and covered in plastic.