What is the best head for modifying/porting?

Is there more meat (smaller coolant jackets?) in a round port or do you start with an oval port as the ports are already larger?
Do you carve up a "rare" GX head over a H89 over a round port?

I am looking to get a head fairly seriously tampered with in the future and if it can be done with a dirt cheap head rather than paying through the nose for a "performance" head like a GX or H89, then I would rather do that.

go to project build page 3 i thick ***heads (painful veiwing) Topic has Attachments [1][2][3] things i've done over 25 years.cheers

JTS head is the go.

I have looked at your work there bige but I have no idea from that carnage which is the better base to start from..

There has been some fairly serious sectioning happen there in the name of R&D..

all i can say is good luck, don't assume all same number casting are the same in ports.(every head is different). your opening a can of worms. cheers

Yeah I guess so, that's why I intend to get someone who knows what they are doing to do the work.
Just want to get the best base to start off so I don't get a "sorry mate, this head is sh1thouse, you should of really got xxx head" after I have spent $$$ (or more likely $$$$ ) on wasted porting work..
I realise with core shift etc that even the "same" heads are different internally but if I can get the "best" base i.e. smallest coolant cavities, most meat in port walls to start from, I am more likely to get a good result.

Contact SW motorsport and ask about a JTS head, they should be able to help.

http://www.swmotorsport.com.au/index. ... 108.html&lmd=39067.093299

He's asking what is the best candidate to begin modifying in terms of suitability in material/structural composition and costs.

Levey, your Jeff Taylor head (Andy's old one) was a modified H89 no? Dean's asking about a budget start I think not a big buck special from Jeff Taylor (although I should say he's really well priced and has a good reputation as a knowledgeable A-Series builder).

MAYBE ONE OF THESE I HAVE WILL WORK
A NICE GX VIRGIN AND THE ANSWER IS 'NO'

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Wow, there's a bitta bling! Nice. I thought that was the later Nissan Comp head for a second there! You filled the manifold coolant galleys nicely.