Alright as of now I have/had a b20b with a Gsr head. It was to slow so I boosted it and while I was getting it tuned it started a slight knock. Crank has been slightly scared so I was considering sending that Bitch to golden eagle getting some sleeves and doing it up. My questions are should I just get a b18 crank? Because I don't plan on revving past 9k but I don't wanna have to worry about the b20 crank because I here bad things. So get a ls crank or just get mine turned? Second thing is if I do get a ls crank should I go with ls rods and 84mm bore pistons? Just need to know the best combination for the b20 block. Im not boosting again unless im sleeved so someone let me know what would be the best combo for this engine. It will be fully.... I mean fully built not pistons and rods I mean sleeves block gaurd all head work possible. I make the money to do so and I just got another vehicle so we are going all out. Oh and its still gonna have a/c power steering and cruise control ha!