PRP Twin Cam Modification Timing Belt Kit - Nissan/Holden RB30Fitting a twin cam head to a RB30 block? Then you need PRP's solution to the dreaded timing problem on a twin cam RB30, the PRP RB30 Twin Cam Timing Belt Kit! Construct your own timing kit using the options we have provided, you can add our popular timing tensioner drilling kit which guides you and allows you to locate the perfect position for the tensioner, or maybe add our Series 1 to Series 2 RB30 block adaptor kit which allows you to passenger