Nissan RB30 S1 Block ConverterRB30 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 Installation guide here > RB Block Pulley Conversion
Shopping security
Each payment you make on thelockerguy is secured with strict SSL encryption and PCI DSS data protection protocols