186 / 202...?

[eff_see]

howdy.    ;D
 
can i put a blue 202 crank and rods into a 186 block?
 
i think i read somewhere that the 186 had a stroke of 3in and the 202 is like 3¼in or something...? custom pistons are a must anyways...
 
only reason i ask is that the blue rods and crank are SO much better than red parts - and i have a formula to make a genuine 450RWHP out of a turbo'd 202 using a (prepped) blue bottom end.
 
main reason i ask is that i don't have the budget for special rods and billet cranks.
 
if anyone else has any ideas then please post (maybe another combo...).
 
thanks