04-16-2007, 11:08 AM
My car supposedly has aftermarket heads, but I have been doubting it for some time now. There are no markings on the front of the heads indicating anything such as "AFR", "Edelbrock", etc. However I noticed on the front of the passenger side head some numbers. The top number was 1319UK(the U could possibly be a V), and directly below it was the numbers 587365. Any help would be greatly appreciated.