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best head for 202

Started by _qiksix_ , Nov 04 2012 05:01 PM

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32 replies to this topic

#1 _qiksix_

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Posted 04 November 2012 - 05:01 PM

Just thought i ask everyones opinion on what would be the best head for a naturally aspirated 202.

Yes i know there are the jzeds(too many $$$ for most of us) duggans etc(if you can find them) but what else is out there, i've even seen ford heads on some, comon guys throw some ideas.

Getting bored might need a new project.

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#2 _Bomber Watson_

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Posted 04 November 2012 - 05:08 PM

This is always a massive can of worms, and it seems its a case of horses for courses.

Basically, from what i gather, and generalizing a bit.

Drag racing, excluding jzed or duggan, you want a 9 port.

Hot street/drag you want a 12 port

Mild street you want a 12 port

Ford heads if you are handy with a mill and a lathe and feel like a frOck around.

Cheers

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#3 _Quagmire_

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Posted 04 November 2012 - 05:37 PM

just get a yt cheap and frockin easy

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#4 greens nice

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Posted 04 November 2012 - 07:05 PM

just get a yt cheap and frockin easy

but not as effective and in the end will cost you more than a jzed.

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#5 stealthxu1

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Posted 04 November 2012 - 07:07 PM

Check this one out on ebay Item number: 170936670237

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#6 _Bomber Watson_

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Posted 04 November 2012 - 07:10 PM

Love the way they never list a chamber size.

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#7 rodomo

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Posted 04 November 2012 - 09:04 PM

Check this one out on ebay Item number: 170936670237

http://www.ebay.com....1#ht_894wt_1186

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#8 _Quagmire_

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Posted 05 November 2012 - 07:20 PM

but not as effective and in the end will cost you more than a jzed.

only if your chasing mega horsepower....
and if your doing that the bottom end becomes the weak link

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#9 _Bomber Watson_

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Posted 05 November 2012 - 08:16 PM

An off the shelf YT is only really good for a mild build, and most the ones on ebay for 4-500 are #@$^%& and need a grand spent on them anyway.

Cheers.

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#10 greens nice

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Posted 05 November 2012 - 10:10 PM

only if your chasing mega horsepower....
and if your doing that the bottom end becomes the weak link

he did say he wanted the best head....
i would never use one again on an aspirated deal, if it had 20 psi in it that would be a different story.

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#11 _STRAIGHTLINEMICK_

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Posted 06 November 2012 - 07:13 PM

he did say he wanted the best head....
i would never use one again on an aspirated deal, if it had 20 psi in it that would be a different story.

Did u find a lack of low rpm torque?

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#12 _Quagmire_

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Posted 06 November 2012 - 07:21 PM

he did say he wanted the best head....

maybe check the yellow pages under escorts..... :stirpot:

well somebody was going to say it.... sooner or later

Edited by Quagmire, 06 November 2012 - 07:22 PM.

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#13 greens nice

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Posted 06 November 2012 - 07:35 PM

Did u find a lack of low rpm torque?

no idea this was on a drag race eng but they are all the yt alloy's are open chamber.
After it was ported, chambers welded, hardened seats and guides replaced, machined and filled with good stuff the jzed looks real cost effective.

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#14 rodomo

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Posted 06 November 2012 - 09:15 PM

Best budget head would be blue hi-comp bolt on.

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#15 _Ned Loh_

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Posted 07 November 2012 - 02:04 PM

Best budget head would be blue hi-comp bolt on.

IMHO

- best budget head. Black EFI.
- best base for moderate engine. Small chamber 12 port (or blue high comp as Rodomo calls it)
- best all out max hp is probably JZED, but I've not had anything to do with one.

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#16 _STRAIGHTLINEMICK_

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Posted 07 November 2012 - 08:38 PM

no idea this was on a drag race eng but they are all the yt alloy's are open chamber.
After it was ported, chambers welded, hardened seats and guides replaced, machined and filled with good stuff the jzed looks real cost effective.

Yep i agree ,a max effort alloy 12 port will cost at least 4 grand without rockers,getting close to JZ cost.

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#17 _qiksix_

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Posted 08 November 2012 - 09:52 PM

No way i'd be spending that much on a dirty old holden head, what's the cost break down. I thought 1600 for a 9 port was dear 15 year ago. Maybe a ford is worth looking into, i read something oldjohno wrote that he thought the holden head wasn't big enough to start with, can't remember where i read now.

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#18 _Bomber Watson_

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Posted 08 November 2012 - 09:54 PM

Looking into it :stirpot:

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#19 _qiksix_

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Posted 08 November 2012 - 10:22 PM

That's what i thinking too bomber, i'm an aspirated fan, don't know what it'd be like without a turbo. Did oldjohno ever get his done or further along.

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#20 _torbirdie_

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Posted 08 November 2012 - 11:42 PM

http://www.ebay.com....1#ht_894wt_1186

"It was removed off a running car"................ Rofl........by Usain unBOLT ?

Edited by torbirdie, 08 November 2012 - 11:52 PM.

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#21 _oldjohnno_

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Posted 09 November 2012 - 02:53 PM

That's what i thinking too bomber, i'm an aspirated fan, don't know what it'd be like without a turbo. Did oldjohno ever get his done or further along.

Still not finished. Building a couple of 12 port manifolds at the moment, once they're out of the way I'll try to get the other engine finished.

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#22 Dave6179

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Posted 09 November 2012 - 04:31 PM

Heres a thought... 9 port 173, VN valves and springs, good port job (I just bought a die grinder with steel and alloy bits) screw in studs, 1.6 roller rockers, bigger cam than I already have. Mmmmmm, grunt anyone???

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#23 _qiksix_

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Posted 09 November 2012 - 05:01 PM

Johno, does the std ford head flow better than a ported holden head, anywhere near a jzed? What sort of power do you think a ford headed holden could make.

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#24 greens nice

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Posted 09 November 2012 - 05:38 PM

what is the ET or HP figure you are aiming for?
i know of a 202 with a iron yt 12 port that just spun the rollers to 298rwhp on pump fuel with a flat tappet.

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#25 _Bomber Watson_

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Posted 09 November 2012 - 06:54 PM

Heres a thought... 9 port 173, VN valves and springs, good port job (I just bought a die grinder with steel and alloy bits) screw in studs, 1.6 roller rockers, bigger cam than I already have. Mmmmmm, grunt anyone???

Sounds like a good way to make very little HP.

Quick six, yeah mines mostly a joke and something to frOck around with when im bored, havnt actually done anything yet, nor do i have a car to put it in lol.

Kev, interested?