MCEcomp

Hey all you holden 6 nuts.

What is the best cylinder head for a 208 holden 6 need to make 250-280HP will do whatever porting and machining it takes

thanks

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3370lb HG prem 10.013@134
358 chev N/A flat tappet cast heads

3554me

try this guy maybe

Welcome to JZED Holden 6 Performance

gas 84k

Had a freind just finish a 202 made 276 at 6200 with a yella terra alloy and tripple webbers.

skidmarx

geez, any pics? i love the look of a nice holden 6 and the sound is awesome

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100% pimp factor, long live the VK

BossHoggett

Find another engine mate.... honestly do your self a favour.
Red 6 Siamese's inlets are the best in mass flow but shite absolute.
blue and black are smaller ports to promote torque and have high port floors. but you cant go that far without going through the jacket.

Zoe's heads are state of the art stuff but at $3800 that i can recall ???
Unless your going 9000 Rpm or supercharged then ok.

The amount of time ive spent over the years rooten around on these heads. it aint worth it.

We got the shits eventually and we made our own too. But nothing like Joe's

Attached Images

head.JPG (53.0 KB, 36 views)

Smitty2

in my experience....

early cast 179...modified along the Yella Terra lines
with ellipsoid shrunk in spacers with polished exhaust ports and left as cast inlets and chamber work around the plugs and worked on by someone (like Ian Tate)who knows what they are doing (eg flowed as being worked on)
and
after being angle cut and re-drilled and de-bossed


many moons ago... I had one of those on a blue 202 +60
block and with mods like Triple Webers and HDT Prod series extractors...made 222rwhp @6800

hth

Smitty

allports

MCE and small chamber 9 port is the most flexible to use. If your lucky a 2.8lt (173) blue if you can find them. In our rails the old 9 porter still prevails.
If your talking $ then you cant go past a JZ head. I have his ph# if you need it. A good mate of mine.

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