86 replies to this topic

[SA EH]

Hey guys, I know this has been brushed over once or twice but i couldn't find any pics or details, so i started digging... 

 

Even before i started any head work on my project, I made a phonecall in response to an add in an outdated magazine to a bloke who was casting up alloy 9 ports. At the time there were only a couple of alloy methanol heads (no water jackets) and cast iron versions available along with the uncertainty of any future castings. 

 

Anyway, thought i'd give Ian Moodie another call.

Turns out another batch were made and some are still available.

Yes they are costly, no they're not a Jzed, but if you're considering a yella terra, check it out. 

 

The design features over the standard 9 port make it perfect for high horsepower applications.

Quoting Ian here... "spring pads are thicker to allow for taller spring heights and roller cams , ( 1.700 can be achieved no problem) , manifold faces are wider on inlet and exhaust faces and the lump in number 5 exhaust port removed , Tappet cover area is 4mm higher to allow for rocker clearance . Now for the HORSE POWER bits , A closed chamber has been used to get the best squish and make the chamber active , it has been modified to allow larger valves to BREATH , the guides are offset to the centre of the chamber for bore clearance and air flow , 1mm on the exhaust 1.5 mm on the intake valve . The ports are cast larger than factory size ( no need for extra porting ) . The short side of the throat area is thicker and throats are larger than standard . The ports flow more air in the high valve lifts than a factory head allowing for use of roller cams or larger rocker ratios to be used . XU1 part numbers and cast dates are used".

 

One great advantage is the ability to fit larger valves without having to carry out bore notching or offsetting the cylinder head on the block. You can probably carry out additional porting to suit your needs and if you break through to a water jacket (which you won't because the throats are thicker), just grab your alloy welder & fix it up. Anything thats already on your 9 port can bolt straight up, and its heaps lighter! Word is that there's some folks going as far as 1.9" on the intake valve!

They are a great head for NA horsepower with some group nc racers using them to their fullest.

If i knew how much i was going to invest in my head at the time, this option starts looking cheap!

If you have any queries, the man is happy to chat. (Ian Moodie 0448 003 548) - think he's in QLD.

No, i didn't get paid for this... here's a few pics

 

 CYLINDER HEAD (3).JPG   467.1K   26 downloads

 

 CYLINDER HEAD (4).JPG   453.36K   17 downloads

 

 

 

 CYLINDER HEAD (5).JPG   471.74K   16 downloads

 

 CYLINDER HEAD (7).JPG   476.3K   20 downloads

 CYLINDER HEAD (8).JPG   492.22K   13 downloads

 

 various 2012 162.JPG   469.18K   13 downloads

[SA EH]

 various 2012 163.JPG   392.46K   39 downloads

 

 various 2012 168.JPG   432.4K   30 downloads

 various 2012 169.JPG   415K   41 downloads

[N/A-PWR]

Very Nice Jonesy,

Now we need to heavily port her,

 although she does look bigger in the port from here.

I like the cut out, so we can see the insides

Edited by TORYPOWER, 01 June 2014 - 11:14 AM.

[SA EH]

XU1 part numbers?
For people to make their XU1's original?!?!

Yeah, nah, sorry no flow figures bomber.

[SA EH]

I have flow figures...

1.74 intake valve
1.48 exhaust valve
Tested at 28"

Intake @ .500 - 185.98cfm
@ .550 - 193.50cfm
@ .600 - 198.88cfm

Exhaust @ .500 - 151.98cfm
@ .550 - 156.06cfm
@ .600 - 159.12cfm

[turboman]

do some research on ian moodie,then you will realise he is not just somebody who decided to cast up some heads

[LJ RB30]

I thought the same when they first came out but to me if anyone thinks they look original then I might put my "Willow XU1 converted to an S" up for sale ! :-)

On the port side it looks like a red head!

On the spark plug side it looks like a blue head !

Hmmm wonder what I could get for Willow?

Calling Ritcho! Hahahaha

[SA EH]

For an as delivered head, it flows just as much as mine does after spending thousands on valves & port work... so yeah, id have one, also to say I've got an alloy 9 port.

[SA EH]

do some research on ian moodie,then you will realise he is not just somebody who decided to cast up some heads

This^^^
He is a great guy with many years of experience behind him and more than willing to share that knowledge with you. He has certainly changed my perspective on the holden 6 in a couple of phonecalls.

[SA EH]

I've got nothing here to say that it's not what you get when you pay the money...

[orangeLJ]

I'm curious as to what kind of dollars they want?

[biga064]

$3600 bare head !!

[SA EH]

Yeah I can see that Rod.
I'd say it was a test unit cut away to check shape & thickness, but that's a guess...