It shows a pre-1995 inline 6 which may be the M103, close enough to the M130 in terms of weight as they both have an iron block.
And 63-71 may be the production year of the Pagoda, but its engine family started well before that on the 220 ponton, and went on living well after that on the w114 and even w123 chassis. So I guess the info is close enough when it comes to draw approximate weight estimates for these engines, as requested by OP.