what are you guys talking about?!

b series bottom ends are all very strong.

not boost it without sleeves?! are you serious? you do realize the best way to keep a motor from blowing up is tuning, not ultra super duper sleeves. you know because they are open deck designs the top of the cylinder walls is where they are at their weakest when boosting. so if you use a block guard you'd really help yourself out.


getting into large lbs of boost, yeah get some sleeves.

b16a and b18b's are both great choices, one gives you a different feel than the other, neither one is better than the other. it comes down to personal preference.