go to nico forum, there is very little info on here for RB conversions into s-series, bear in mind it is a very simple swap and requires custom gearbox mount adapters only, the rest is a bolt in affair. The conversion into the S13 we use took about a week in a shed without the use of hoists etc.. i fitted a R32 lower rad support and castor brackets etc to make more room between radiator and engine as i really did not want to run thermos.... but i ended up getting a GREDDY read which is so damn big i had to run flex-a-lite fans any way.