202 conrods

[back yard bogey]

gday. just got a vh with a blue 202. a genuine one little old lady owner car with less than 79000km - & quite a few carpark dents. the galv inside the ashtray is something to see; it's glary. but i'm wanting to make the old 1964 design engine more efficient & so the first thing i want to do is fit conrods that are as long as possible. would anyone know conrod length, journel & pin diameters, piston compression height & the deck height of the block? i've heard of bmw rods with vw pistons but that's the extent of it so far. if anyone could help that would be excellent. cheers