SoCal- s52 head

[e30_OneLove]

I really need an s52 head to finish my project.
Im wondering, can i use a m52 head or do the valve size change??

[MclubSport]

Sorry... My english is not so good. You want ALL head or just engine cover engraved " M power " ? I have for sale a kit aftermarket with engine cover engraved " M power ". Brand new.