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186 wise guys

Started by _vk_agent_orange_ , Jun 08 2011 09:48 AM

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39 replies to this topic

#26 _wix2250_

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Posted 12 June 2011 - 05:36 PM

Hi here is a picture of my head on my 202, got the motor off ebay it shows the machining on the small chamber head cheers Glen,

Posted Image

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#27 _Bomber Watson_

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Posted 12 June 2011 - 05:53 PM

Oh.

My.

God.

Where do i start with this thread??

Cheers.

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#28 greens nice

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Name:Kevin
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Car:EH Holden
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Posted 12 June 2011 - 07:44 PM

and wix2250, theyve done that just to drop the CR and reduce squish area in the meantime. the spark plug side needs to be releived/ un shrouded as that is where all the flow is coming from.

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#29 _vk_agent_orange_

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Posted 12 June 2011 - 08:15 PM

holly hell , thats some nice work to the chamber compared to standard how much does it lower the cr by?! did you do it your self?i could do something like that to the 149 could you take even more than that off?

sorry the thread has been side tracked a wee bit but getting ALOT of my questions answered!!

i guess you guys are familiar with Building the hot Holden six created by snarly john? that thing is my bible at the moment haha

cheers

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#30 _wix2250_

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Posted 12 June 2011 - 09:16 PM

holly hell , thats some nice work to the chamber compared to standard how much does it lower the cr by?! did you do it your self?i could do something like that to the 149 could you take even more than that off?

sorry the thread has been side tracked a wee bit but getting ALOT of my questions answered!!

i guess you guys are familiar with Building the hot Holden six created by snarly john? that thing is my bible at the moment haha

cheers

Hi I brought the motor off ebay with the maching already done. I got the motor complete its got a 179 HP block with a 202 red motor crank in it, the head must be a 161 or 149.

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#31 _Bomber Watson_

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Posted 12 June 2011 - 09:27 PM

How is that nice machine work in the combustion chamber???

Thats appalling...Whoever did that should be shot!!!

Mate if you have read the page by Snarley John and actually absorbed it you would realize similar....

Cheers.

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#32 FastEHHolden

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Posted 12 June 2011 - 09:57 PM

You'll find that Dave Bennett is responsible for the machining....can I get my machining done at your shop?

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#33 _Bomber Watson_

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Posted 12 June 2011 - 10:05 PM

I have a few YT heads and none have that kinda machining???

At the end of the day this was mass produced shit that performed with the least possible money spent, crap like that high comp proves he was in it for the money not the love....which i have nothing against. Business is business baby.

I dont have a machine shop when it comes to combustion chambers mate, im just a crazy mofo with a die grinder, cc ing equipment, basic knowledge of fluidynamics, half a brain, and im not out to make a quick buck.

Cheers.

Edited by Bomber Watson, 12 June 2011 - 10:07 PM.

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#34 Heath

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Posted 13 June 2011 - 01:46 AM

Woah never seen it done like that before!

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#35 _stretchlc_

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Posted 13 June 2011 - 11:03 AM

Hi here is a picture of my head on my 202, got the motor off ebay it shows the machining on the small chamber head cheers Glen,

Isnt this a factory chamber???......see chamber pics attatched
http://gallery.oldho...yl+Casting+ids/
part number.....7429477

Edited by stretchlc, 13 June 2011 - 11:06 AM.

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#36 FastEHHolden

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Posted 13 June 2011 - 11:40 AM

nope...the casting number is for a kidney shaped 161 head....both those heads have had the yella terra touch

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#37 _threeblindmice_

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Posted 13 June 2011 - 01:23 PM

Maybe an early Turbo modification ,done before YT went to the alloy turbo heads .

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#38 FastEHHolden

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Posted 13 June 2011 - 02:17 PM

I've got an alloy turbo head...they are different shapes....the cast and alloy turbo heads were the same shape as each other....available in 69 and 72 cc combustion chambers.

I used to own a yt head with the same shape as the one pictured....until I cracked it.

Edited by FastEHHolden, 13 June 2011 - 02:18 PM.

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#39 _vk_agent_orange_

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Posted 13 June 2011 - 02:29 PM

does any one have any tips for how to port the 149 for a good flow? or maybe some links to who does? i just dont wont to go to deep and screw something up

currently reading through the (building the hot Holden six ) i had printed , but it will take a while for the info to soak into whatever brain cells i have left Posted Image

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#40 _Matty_torana1978_

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Posted 03 August 2011 - 11:23 AM

186s are an awesome engine. I'd nearly take the 355 chev out of my torana and put the 186 back in lol. When it had a 186 and borg warner 5 speed in it, I ran the quarter at 15.9 sec @ 148 kph with a 3.55 diff ratio. After that we wound it out to see the top speed. It was 185 kph in 4th, shifted to 5th and got to 205 kph before we had to slow down.. All this happened in a full weight lx torana, 2 ppl and $1000 stereo system, twin 12 subs and multiple speakers. The setup was a run of the mill yella terra head, electronic dizzy, retuned 4 barrel rochester carb on top of a cain 4 barrel manifold with 1/2 inch 4 hole insulating spacer, ford xy gt shaker assembly (yeah on a holden 6 lol). The only 6 cylinder torana with one, it made ppl look to see an offset shaker scoop on a torana. A waggot 30 70 cam which with the setup gave a good powerband between 1800 to 6200 rpm. fully balanced, lightened flywheel. The drivability was amazing. Could cruise up hills in 5th gear and driven sedately could return 11 litres per 100 k economy. Sometimes I regret changing to the thirsty chev.