Is there anything tricky or special I should know before swapping the cam from one cam tower to another? I may have damaged mine removing the bad bolt and have a spare. It should be just a swap over isnt it? Its an 84s motor U.S. version

 

Anyone ever just swap out a cam tower??

 

Haven't done it but it should be doable as just a swap as AFAIK there are no tolerance groups or anything like that for towers or cams.