Quote Originally Posted by efman
umm does'nt a 818a have 130 and a b18b have 140 ?
the power difference is so miniscule it's not even worth noting.
The B18A has about 140 and the B18B is closer to 145 like Mr. Kidd said.

The LS block IMO, is the best building block for a B series engine. You can do ANYTHING to it and still achieve decent gains/results because of it's moderate displacement. boost? all motor? supercharging? even (heaven forbid) nitrous? the LS is tough.