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Old 24-02-16, 19:36   #1
ChrisOk1
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Join Date: 22-02-16
Location: Sydney, Southern Sydney
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Difference between RB20 and RB26 head

Been looking for an RB26 head for while to do an RB26/30 conversion. I had a guy respond to an ad I put out and included pictures of the head he has. He says currently it has RB20 cam gears on it and no cover, which has me a bit sus. Is there any way of telling the difference between and RB20 and RB26 head visually?
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Old 25-02-16, 11:42   #2
bachig24u
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Join Date: 12-04-10
Location: NSW, Austral
Car: VL Calais
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The RB26 has 05U or 24U in the casting.
the exhaust stud pattern is LLRLLR or \\/\\/
The RB20/25 cam gear back plate won't fit a RB26, one of the holes are wrong and tricky to modify.
NON-VCT ex-in Cam gears are the same between 20/25/26.
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ECU Calibration Engineer - Tuner

Last edited by bachig24u; 25-02-16 at 11:48.
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