Heys guys, Im planning to do a head gasket on my ea soon and i was just wondering what experiences people have had in regards to machinging of the head....do a lot or a little, i have manual, exctrators, exhaust...should a little head work give me a noticable power gain??? and what is the averege price or abouts for headwork both standard and for extra work???
Cheers
wouldn't putting a 4 litre head on a 3.9 lower the compression an in fact adversly effect performance? I guess the larger ports etc would offset this but wouldn't better gains be had from getting work done to the 3.9 head instead if you weer using the 3.9 litre block???
no, rymers it would be buggar all diference, if ur on a budget, go a cleaned up ef head, if you have some cash, pm me ill sort out an au head for ya. :wink:
apparently EA heads are the worst of the e-series. Why not get a later model head and work that? I've had my EA head worked by SVO for 800 bux. It will give you a power gain but to get the most out of it you really need a cam. Just get a Wade regrind for 150 bux or whatever they are and chuck that in at the same time.
Does the ef head bolt staright on??? I need to do a head gasket also, wat gaskets would be best?? AU? top of line EA? Is there any other mods that need be in order to fit an ef head.....im on a budget and i just want a little bit more pull not an all out machine!!!
Yeah the EF head bolts straight on, I've put one on my 3.9L. I used an EF/EL had gasket, and you'll also need an EF/EL rocker cover too, otherwise it'll leak badly.
there would be a slight drop in CR but the extra port flow will offset that then add some grunt, so its deffinatly worth while. run it with the au metal head gasket and there should be as big a drop in the CR
ef heads are every where, reco'd ones are about 500 odd buck.
Not huge grunt....just a little bit more flow, but not ridiculous!!! Just to get her breathing a bit better!!! Where can i pick up one of thoses gaskets???
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