Quote Originally Posted by 1siccEJ2
yes the walls are thinner as the stock bore is 3mm bigger than a normal b series, but that wouldnt matter if he's smart and gets good tuning afterwards . . . or if he tries to hit 182049890128048192849124 whp
if you bore out a 81mm stock b18 sleeve to 84mm it would not last. the sleeves are not any thinner than reliability allows. the sleeves on a b20 are just as thick as the sleeves on a b18...its not a b18 block bored out contrary to mis-informed ppls beliefs. they are 2 totally different blocks