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Discussion Starter #1
Is it possible to give an overview of al the stages and differences between all the cylinder heads GTT sells? Maybe also prices and working hours needed for installation....? And any idea of expected HP gains?
On the site I only find stage 1 and 2...

Many thx
 

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Stage 2 is the full on ported andf flowed head.

Stage 3 is rare and only a few examples, but is essentially the same as the Stage but with Ultrich valves.

Stage 4 is now again essentially the same as stage 2 but with Schrik valves.

cars with stage 2 heads and other bits have hit 270bhp. Stage 4 heads have not been massively dynoed yet.

Sure roland will give more info. But search on here for stage 4 head
 

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Gtt

Are you asking if someone is using the heads and what their coments are?? You can call GTT and they will advise on what they do, and the expected gains.

What are you looking for in a Head?? your performance envelope??

Just me...............................

Thumper
 
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