4k engines and heads

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4k engines and heads

Postby bacon » Wed Jun 11, 2008 4:49 pm

Hey what type of head should a put on a 4k engine, i have a 4k head but want to know what will be better on it cheers. 8)
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Re: 4k engines and heads

Postby tsoob » Wed Jun 11, 2008 5:48 pm

bacon wrote:Hey what type of head should a put on a 4k engine, i have a 4k head but want to know what will be better on it cheers. 8)


bro its a 4k my mate did everything to one and all it did is drink more gas, a turbo one would be cool for WTF factor
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Re: 4k engines and heads

Postby YeMs » Wed Jun 11, 2008 5:55 pm

tsoob wrote:
bacon wrote:Hey what type of head should a put on a 4k engine, i have a 4k head but want to know what will be better on it cheers. 8)


bro its a 4k my mate did everything to one and all it did is drink more gas, a turbo one would be cool for WTF factor


lol, yeh but it gets to the point were effort required, and output gained are way up the piss.

put a 3kb head on if you can find 1. other wise the 4k head will b fine.
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Postby GTTpower » Wed Jun 11, 2008 6:06 pm

If you can get a jap import 4K-U, there the best of the 4K's (except the 4K-E)
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Postby bacon » Wed Jun 11, 2008 7:43 pm

so are 4k and 3k heads the same?
where do u get 3kb heads from cheers.
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Postby Bling » Wed Jun 11, 2008 7:45 pm

trademe, and as has been said above, why bother :lol: you probably won't notice any difference no matter what you do unless you spend $$$$$$$$$$$$$
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Postby Lloyd » Wed Jun 11, 2008 7:53 pm

bacon wrote:so are 4k and 3k heads the same?
where do u get 3kb heads from cheers.


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Postby bacon » Wed Jun 11, 2008 8:05 pm

BZG|Bling wrote:trademe, and as has been said above, why bother :lol: you probably won't notice any difference no matter what you do unless you spend $$$$$$$$$$$$$



what do i do to it then if i spend $$$$$$$$$$$$$$$
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Postby matt dunn » Wed Jun 11, 2008 8:17 pm

bacon wrote:
what do i do to it then if i spend $$$$$$$$$$$$$$$


Spend 5x the price of a 4AGE conversion, and get 1/2 the power, and driveability,

Oh, but you will get twice the fuel comsumtion though.

If you really wanted to spend big dollars, probably something like
short skirt pistons, lightweight rods, large cam, and headwork by someone who knows what they are doing?
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Postby Dell'Orto » Wed Jun 11, 2008 11:48 pm

Use the 4K head, 3KB is a waste of time (lets have huge ports and standard size valves, hurray) and a 4K-U head on a stock 4K would end up with 16:1 compression (methanolicious!)
Just plane a few thou off it to bring compression to 10:1, it'll go better. Still nothing flash, but will be better than stock.
Really depends on how much money you want to spend, you can get them to make over 130hp if you want.
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Postby scope » Thu Jun 12, 2008 9:53 am

put in a 5k and play with it, definite power differences
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Postby AE86less » Thu Jun 12, 2008 11:56 am

Buy this! 7K plus a van/minibus for $250!

[url]
http://www.trademe.co.nz/Trade-Me-Motor ... 659536.htm[/url]

Edit: I see you are in Chch and this is in Gisbourne..

Edit 2 :idea: : Doit anyway!
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Postby Dell'Orto » Thu Jun 12, 2008 6:26 pm

Thats a 2Y, not a 7K ;)
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Postby Lloyd » Thu Jun 12, 2008 6:28 pm

I concur
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Postby rollaholic » Thu Jun 12, 2008 7:26 pm

its still a sweet van though!
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Postby AE86less » Thu Jun 12, 2008 8:37 pm

Dell'Orto wrote:Thats a 2Y, not a 7K ;)


Damnit :x
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Postby DXROLLA » Tue Jun 17, 2008 6:09 pm

When i had my 4k in my dx, i ported and polished head refaced valves, F29 cam from kelfords, all new bearings, re-bored with oversized pistons, lighten flywheel, planed head (14:1), just used a 32/36 webber carb, sounded mean as did good skids lol but wasnt overly fast, cost me around 3g i think.
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Postby Bling » Tue Jun 17, 2008 9:46 pm

bacon wrote:what do i do to it then if i spend $$$$$$$$$$$$$$$


transplant a better motor in.

a blacktop would be nice, but not the easiest of conversions. 4ages are used a lot though, so most parts will be easily available, just might be costly, but at least it will go well when done.

all depends how serious you want to get.

My current dream is 1uz in my corona project :lol: will start saving $$$ one day.
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Postby Dell'Orto » Tue Jun 17, 2008 10:56 pm

bacon wrote:what do i do to it then if i spend $$$$$$$$$$$$$$$


Forged slipper pistons, forged rods, forged maincaps, dry sump, titanium pushrods, roller rockers + lifters, 15:1 compression, twin 40mm carbs/quad throttles, run on methanol and rev to 10,000rpm. Not to mention balance the living bejesus out of everything that spins and spend thousands on the head.
Would sound incredible, and cam dependant would make assloads of power and have to be rebuilt every 4 hours.
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Postby Lloyd » Tue Jun 17, 2008 11:51 pm

Doesn't take that much to make them rev a bit. 10k is a bit of work though lol
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