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rb26dett valve/port size.

Cubes

By Cubes,
in Engines & Forced Induction

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Cubes Grand Master

Cubes

Posted
Posted

Recently I've heard from a few people that the ports and valves are bigger on the rb26 head compared to the r33 rb25 head?!?

From the r32 RB26DETT head i've seen the valve sizes were ~35mm for the inlet and ~29.5mm for the exhaust.

From what I've seen the ports are the same size/design as the R33 rb25.

The only difference with the head is the different cam specs and the solid buckets.

Any 1 care to clear this up for me with first hand experience or knowledge?

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https://www.sau.com.au/forums/topic/42894-rb26dett-valveport-size/
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