I have a 1974 VW beetle that I have been told needs a new head. I am willing to do the work myself and have a repair manual but am unsure of what head I am suppose to be ordering. I know it is 1600 8mm studs w/case savers per engine AH130301. But that is not what I am seeing when I try to find one to order. Any help out there for this not so educated VW owner? Thanks.