Originally Posted by
botters
200 is a thicker block that was made stiffer for the strains of the 4x4 having a diff bolted to the sump, the rs 500 had a 200 block allthough this had smaller core plugs which give it slightly more strength

rs500 has 205 block,different casting material with small core plug
Last edited by escort700bhp; Jul 30, 2011 at 10:35 AM.