Originally Posted by Sniper
EQ makes two Magnum heads. Standard (318A) and performance (318B).

Flow numbers

https://enginequest.com/enginequest/cylinder-heads/flow-numbers/

The heads themselves, bare.

https://www.ebay.com/itm/143965139173?hash=item2184fdb0e5:g:tA0AAOSw33tfBJF4



That is a chinese piece of crap, they no longer make the good ones. The quick easy surefire way to tell the difference is the flat end of the head on the good ones VS these look more like a stock one but they do not flow worth a crap and the casting quality is rougher than a stock one. Pay a local machine shop to do a valve job on your old ones, you'll be better off (ignore the cracks they don't affect anything).


I am not causing global warming, I am just trying to hold off a impending Ice Age!