im doing a 2ltr zvh conversion and i have a choice of bits to use, the block and crank are from a black top zetec and i have standard pistons and rods from that engine, i also have a set of low comp pistons from a silver top with no rods

the black top rods are 19mm shaft and the silver top ones are 22mm,
if i get a set of standard silver top con rods can i use them in the black top engine as ive read that the rods are different lengths