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drift86levin
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brisvegas
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August 2004
stupid cross breed 4ag bottom end/4ac head Mon, 25 October 2004 09:56 Go to next message
hey..i have a spare complete good 4age bottom end early bigport 3 rib block..and my mate has a perfect 4ac head..now over a few beers we though..yeh this might work...so i'm asking...will it? the valve cut outs in the pistons..will they be alright with a 4ac haed ??
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FKN16V
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Re: stupid cross breed 4ag bottom end/4ac head Mon, 25 October 2004 12:10 Go to previous messageGo to next message
The search button is your friend!
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Rex_Kelway
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Re: stupid cross breed 4ag bottom end/4ac head Mon, 25 October 2004 12:32 Go to previous messageGo to next message
Dear lord.

Sure it could be done, but its like putting volkswagon suspension in an EVO 8.
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ae86drift
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Re: stupid cross breed 4ag bottom end/4ac head Mon, 25 October 2004 12:34 Go to previous messageGo to next message
Rex_Kelway wrote on Mon, 25 October 2004 22:32

Dear lord.

Sure it could be done, but its like putting volkswagon suspension in an EVO 8.


hahahaha

swing arm or irs?
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shinybluesteel
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Re: stupid cross breed 4ag bottom end/4ac head Mon, 25 October 2004 12:42 Go to previous messageGo to next message
that would take the term "active yaw control" to a whole new level
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mrshin
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Re: stupid cross breed 4ag bottom end/4ac head Mon, 25 October 2004 12:50 Go to previous messageGo to next message
There's no such thing as a perfect 4AC head Evil or Very Mad
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truenosedan
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Re: stupid cross breed 4ag bottom end/4ac head Mon, 25 October 2004 12:52 Go to previous messageGo to next message
active JAW control as my jaw just dropped at this thread...
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Shraka
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Re: stupid cross breed 4ag bottom end/4ac head Tue, 26 October 2004 02:28 Go to previous messageGo to next message
This thread is funny.

I hear a 4A-GE head is non-interference, so even without the cutouts you should be fine. However I have no idea what the 4A-C head is... appart from rubbish. IT'S NOT EVEN FREEKIN' CROSSFLOW!!!!!
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Bobski
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Re: stupid cross breed 4ag bottom end/4ac head Tue, 26 October 2004 02:46 Go to previous messageGo to next message
mate....just do it....have a few more beers and it wont seem liek a bad idea at all.....do it and shove a 350holley on top and u never know...u could be exploring something no one ever has before.....could be a monster engine Laughing

"ALIVE, ITS ALIVE!!!!!!!!!!!" hehe

Adam
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Shraka
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Re: stupid cross breed 4ag bottom end/4ac head Tue, 26 October 2004 03:07 Go to previous messageGo to next message
Bobski wrote on Tue, 26 October 2004 12:46


"ALIVE, ITS ALIVE!!!!!!!!!!!" hehe

Yeah "IT'S ALIVE!!!! Wait it's only putting out 5kw... oh wait it's dead."
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dcleyne
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November 2003
Re: stupid cross breed 4ag bottom end/4ac head Tue, 26 October 2004 03:13 Go to previous messageGo to next message
Quote:

Yeah "IT'S ALIVE!!!! Wait it's only putting out 5kw... oh wait it's dead."


Sounds like a stock 4A-C
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drift86levin
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Re: stupid cross breed 4ag bottom end/4ac head Tue, 26 October 2004 04:26 Go to previous messageGo to next message
i am just waiting to see something stupid like 200 and above psi on a compression test Razz i don't think the starter would turn it Confused
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IRA11Y
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Re: stupid cross breed 4ag bottom end/4ac head Wed, 27 October 2004 05:48 Go to previous messageGo to next message
I think i covered exactly what you need to do this in a thread about oh 3 years ago.. do a search, then when your about to say.. " i searched but found nothing" search again.
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drift86levin
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Re: stupid cross breed 4ag bottom end/4ac head Thu, 28 October 2004 03:29 Go to previous messageGo to next message
IRALLY - thats a very nice post you put up on that thread..BUT it doesn't come close to answering my question..i'll just try it..i have both sitting beside eachother..i am putting a stock 4ac head on a stock bigport bottom end..my question is..would it raise or lower the comp??
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IRA11Y
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Re: stupid cross breed 4ag bottom end/4ac head Thu, 28 October 2004 05:17 Go to previous message
do a search on twincam16 as well

Quote:

would it raise or lower the comp


well if youve got the two engines side by side its really easy to see what compression youll have... frankly the compression is the least of your problems.

let me know if you get over about 53RWKW .. so far thats the best ive got out of a stock 4AC but thats with a completely stock head no portmatching or anything else and the engine had about 150K kms on it.

Ive estimated you could get over 60RWKw out of the C head but thats with a lot of money spent.

[Updated on: Thu, 28 October 2004 05:28]

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