Quote:
Originally Posted by Gerard C
I dont know 289 heads but have a good bloke using them. He reports they are becoming hard to source but convenient second hand ones are still available on the net for instance. Do you think allowing new heads will lead to a huge increase in power?
Interesting comment about Lotus heads, thanks.
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The trouble with any new head is not about allowing them, it's a need BUT the real trouble lies with the component and respect of the period specification. In essence anyone can cast new heads but give that to a clever man and you will see a whole new internal design that will benefit performance.
If you move some of the water cooling stuff and make space for the flow and porting to be perfect, of course there will be a performance increase but it will look just correct from the outside..!
Why is there waiting list on new engines from particular engine builders for a supposed "evolution" ? If all was correct, there wouldn't be such, you would just wait for a build.