If i get an aftermarket intake manifold on my D16, will it and the other parts...header, intake, fuel injectors and all that crap...will all that stuff swap over to a B16A2 or do i just need to start all over again w/ new parts??

nope the intake manifold will not fit single cam head and dohc head dont match up

intake might be able to fit depending on what year/model it ws for and who it was made by, some cheap ones dont fit that good to begin with si it might fit jsut as well to the B16's TB location. who knows.

also I think injectors will but im pretty sure the stock injectors in the B series flow more than the stock ones in the D series.

nope all d and b series injectors flow the same, 240cc only prelude and maybe accords flow more

alright, didnt know that.

So you think that if i plan to get a B16 in my Civic that i should hold off on buying parts for the D16 that i have right now?

(i forgot to write this part on the last one)
How much does the average B16A2 engine cost?Should i buy a long block, short block and find my own heads w/ roller rockers and sweeter cam, or do i buy an engine that is ready to start...any advice???