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strongest head 

 

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Which head?
EF 5%  5%  [ 1 ]
EF XR6 16%  16%  [ 3 ]
EL 16%  16%  [ 3 ]
EL XR6 11%  11%  [ 2 ]
AUI 11%  11%  [ 2 ]
AUII 21%  21%  [ 4 ]
AUIII 11%  11%  [ 2 ]
AU XR6 11%  11%  [ 2 ]
Total votes : 19

 

 

 
 Post subject: strongest head
Posted: Sun Jan 25, 2009 2:58 am 
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Looks like i'll have to replace my head in my AUI

From what i've heard the AUI's are poorly cast (as well as the EF's and EL's)

does anyone know much about which heads seem to do better than others and would be best suited to an AUI?

I was hoping to find a non-VCT xr6 tickford AUIII head, anyone know where i should look and how much to expect to pay?

 

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 Post subject: Re: strongest head
Posted: Sun Jan 25, 2009 8:26 am 
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quick question. Why do you need to replace the head? I'm under the impression that the only reason they need replaceing is if you've done heaps of ks or you've cooked it big time.

 

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 Post subject: Re: strongest head
Posted: Sun Jan 25, 2009 8:30 am 
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1st i have heard of the heads been weak
well dont use an e series head as then u will need a full e series valve train for it to work

my bet is to go for any au tickford ( ie xr6 hp head )

as this has the larger valves and cam

 

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 Post subject: Re: strongest head
Posted: Sun Jan 25, 2009 9:01 am 
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quick question. Why do you need to replace the head? I'm under the impression that the only reason they need replaceing is if you've done heaps of ks or you've cooked it big time.

 

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9/98 AU1 XR6hp-about to retire from the road and be reborn on the race track.
86 ZL mint grandpa spec with premo sound and 150000km
07 TTG 60000km stock as, mods to come.
97 el futura about to be MOCKed

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 Post subject: Re: strongest head
Posted: Sun Jan 25, 2009 9:41 am 
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the only heads ive heard had poor casting were the ea 3.9 heads...

except the 94ab (ef head) supposed to have the best flowing ports std..
and the std au got the same size valves as the xr tickford heads..
otherwise the rest are as good as each other...
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 Post subject: Re: strongest head
Posted: Sun Jan 25, 2009 2:03 pm 
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ebxr82nv wrote:
quick question. Why do you need to replace the head? I'm under the impression that the only reason they need replaceing is if you've done heaps of ks or you've cooked it big time.


i found oil and what appears to be casting sand in my coolant, after pulling the head off, there are no signs of gasket leaks indicating that its the block or the head.

 

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 Post subject: Re: strongest head
Posted: Sun Jan 25, 2009 8:48 pm 
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Take the head to a specialist and get them to check it. May save you some $

 

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86 ZL mint grandpa spec with premo sound and 150000km
07 TTG 60000km stock as, mods to come.
97 el futura about to be MOCKed

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 Post subject: Re: strongest head
Posted: Sun Jan 25, 2009 8:58 pm 
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casting sand is common as this is what blocks the ford rads all the time

as it is pretty damn hard to remove it all

as for the oil no idea

u sure it is engine oil?

 

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 Post subject: Re: strongest head
Posted: Sun Jan 25, 2009 9:39 pm 
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1st things 1st, go get the head pressure tested. smalled $$ outlay to determin IF your head is the issue, if it passes a pressure test, then you can look elsewhere, if it fails you know your looking for a new head.

When replacing parts test what you can, esp when it comes to larger components, they simply cost more $$.

If you have put a mild acid flush through the motor/head, you may well have flushed a pocket open, or a wall between galleries, but it may not have been in the head, could also just as easily be from the block as they are a cast item as well.

 

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 Post subject: Re: strongest head
Posted: Mon Feb 09, 2009 2:49 pm 
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i just replaced the whole engine for 600 bucks was a bit of work but worth it i think, i fitted a series three VCT head in.

Its heavy as now on fuel because its still the AUI computer but it should all be good when i fit an XR6 computer.

the guy at the wreckkers said you couldn't just swap computers is that true?

i want to fit my MS2 that i built but i'm about to start semester and i don't want to spend too much time on it

 

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PH 4480 racing extractors
lukey 2.5" sports exhaust
Chopper 19"x245 mags
pioneer deck, 6"x1.5" Splits (F) and 6" 3-way speakers (R)
Precision response 4x 100w amp and 1000w mono 10" sub
Got so much more to go!
tint, breaks and spoiler next!

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