E-31 head.....

[71datsun240z]

ok so i am assuming the e-31 head is the best head out there for z's right? well i popped my hood of my car to just take a look at the engine and i looked at the lower part of the head and theengine block it was a L24 i saw which was right and then the head was e-31 head and was already on my z?... was that stock or did someone else put that on? and the head cover is unpolished aluminum

[McZ]

Well, I guess it depends on who you talk to if it's THE best, but what's good about it is if you put it on a 280 block the compression goes up. Down side is the valves are smaller than later heads, but they can be changed. Since yours is a '71 the head is more than likely stock.

[71datsun240z]

so then if its stock then by shaveing the head would make it like the performance head correct? also is it worth working on to get it to be like that?

[Ivan]

I always thought the newer heads were better like the P90's and N42's. as they had better flow and bigger valves