Originally Posted by ullerw
by the way the other reason people do ls/vtec is u actually end up with more displacement than a b18c1, but im wondering if you could just put the crank and pistons from the ls motor into a b18c, would that achieve the same affect? an ls/vtec engine will net you 1834 cc's and a b18c1 comes with 1796 i believe.
the pistons arent the same size....so somthing would have to be changed in that respect...
and what makes lz/vtec more unreliable is the fact that it has a longer stroke... or so i've been told.. it's bottom end wasnt made to take the high revs required to achieve performance gains using VTEC... i'm kinda sick right now and not quite up to informing people... but i think i got that right
you'd be better off overboring the b18c1 to make up for the difference, and then adding higher comp pistons... you'd end up with somthing *prolly* more powerful than a c5... with a port job and larger injectors and fueling system in general that is (to increase airflow for the larger displacement as well as giving it enough fuel to feed)