will this pma work for all?

[71xs1]

I have a 71 XS1B and a 74 TX 650 engine i was going to put in the 71. My question is will the Hughs Built PMA work in both engines? I may have to use either engine someday.
If they will interchange would i need anything else to make the ignition trouble free? Thanks.

 

[gggGary]

Yup will swap to either engine. PMA for the charging system, Pamco is the go to ignition fix it also fits both engines.