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| Seannyb |
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Im pretty sure my head gasket is up s**t creek.
which means if im going to take the prick off, why dont i port and polish while im at it. Apparently a few companies like Yella Terra do changeover heads. So why the hell not. Does anyone know where and how much a port and polish would set me back for my ed and would it be worth it? Also any other companies that do change over. cheers
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| Pulco |
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i just went through rebuilding a motor and chasing up info about the heads...
wat i got told was that u can get a p& p done...start at 400 bucks to about 1500... but they told me it wasnt really worth it as the 4lt head flows good...they recommended puttin bigger valves in it so i did that and a cam... jmm do change over heads for about 1200 its called the street fighter head or something...that price is exchange too
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| Seannyb |
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jesus, thats not cheap. I suppose jmm isnt cheap at the best of times tho.
Ive already done 4 bigger cams, altho theyre still pissy cams. The Ed xr6's have a ported head dont they or is it all in the valves? whats the go with bigger valves? How do they give more grunt? (complete noob when it comes to heads / valves) I was going to go ecu and headers, but now the heads gotta come off, i figure i might aswell do something to that while its off. Since im trying to go with the "If its broke, fix it with something better/faster."
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| Pulco |
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well it ended up costing me about 1200 for a complete head overhaul, bigger inlet and exhuast valves cam and springs
bigger valves just help with the flow, gets more in and more out
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| Seannyb |
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oh yeah like that.
Hmm, too much over budget. I read an article with jim mock before and its left me not knowing where the hell to go, should just go forced!!! 
Or set fire to the ed and buy something decent.
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| Molloy |
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Ive had my head done, revs much smoother and seems to enjoy 5000rpm+ compared to when it was stock.
_________________ SS Inductions CAI, K&N Filters, M-spec FMC, Turbosmart BOV, 8psi capa tune, X-force cat. |
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| Pulco |
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well depending on how many times u take ur car above 5k i guess then maybe it would be worth it...but for a car that normally just drives on the road i rarely visit 5kprm so i doubt its worth it
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| Molloy |
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Well its not just that, its also alot smoother everywhere else also.
_________________ SS Inductions CAI, K&N Filters, M-spec FMC, Turbosmart BOV, 8psi capa tune, X-force cat. |
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| Seannyb |
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I see alot of 5k, since i have manual i rev out alot, never to limiter, ive got to the point of being able to tell revs by speed, but i pretty much never see the other side of 5k.
Im pretty sure its gonna be out of my price range by the time i get the head taken off, should do it myself... Dunno where to go. Maybe ill wait till i stop getting fines and the car runs right. Still, ill enquire about this change over stuff anyways.
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| old_mate |
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I have been told from a very good source the 4.0L head flows heaps on the intake, exhaust benefits from a little work. Exhaust valves would be the ones to change too (as tickford did). shave a bit off for some more comp and you'll have a head as good as you'll ever need unless your being a n/a hero and revving to 7 grand.
the 1636 isnt a bad cam either. it would like some port work i imagine. one of the sydney cam gurus grinds a similar cam with a bit more exhaust. works really well
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| vibr8n |
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[quote="Seannyb"]I see alot of 5k, since i have manual i rev out alot, never to limiter, ive got to the point of being able to tell revs by speed, but i pretty much never see the other side of 5k.[quote]
If it's an ea n revving over 5k it would be going backwards. Ford 4ltrs aren't rice burners & don't love to rev. Especially the earlier models making max power at around 3500. If you want bigger ports n a smoother drive put an ef head on it, they have the biggest ports of any head ford ever put into an e series. Warning: CFI motors need cfi heads. If it's a cfi forget about power from the start unless you want to throw away your computer n bolt on a holley they will be lucky to drag off your average hyundai excel. The more you see of 5k the less you will see of your motor unles it's a race prepared head with bigger fuel pump, surge tank, injectors & cam it's an absolute waste of time p&p'ing your head. you need the flow up front to get the flow out of a head. A race prepared or jmm head tested on a flow bench to 1,000,000kw won't do you any good to a stock as a rock nugget, probably give it a heart attack n make it s**t itself if anything.
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| Southy |
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hey pulco what end result did you get? any 1/4mile times or dyno figures?
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| Pulco |
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i havent got it together yet or run it...lol...been busy and a little bit lazy
hopefully have it together and in the car by the end of the month
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| Pulco |
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old_mate wrote: I have been told from a very good source the 4.0L head flows heaps on the intake, exhaust benefits from a little work. Exhaust valves would be the ones to change too (as tickford did). shave a bit off for some more comp and you'll have a head as good as you'll ever need unless your being a n/a hero and revving to 7 grand.
the 1636 isnt a bad cam either. it would like some port work i imagine. one of the sydney cam gurus grinds a similar cam with a bit more exhaust. works really well exactly wat i got told...ive had both sides enlarged....
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