Platinum Racing Products – Nissan RB26 N1 Billet Oil Pump Backing Plates (PRP-NRB26N1BOPBP)
Platinum Racing Products – Nissan RB30 S1 Block Converter (PRP-NRB30S1BC)
RB30 Series 1 block converter to S2, allows for passenger side tensioner landing so that you can utilise your series 1 block for twin cam head applications.
(Note kit includes 1 adapter plate and 1 Tensioner pulley post)
Note: 30mm is the most common where as the 28mm is a rarer sizing
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