Is it possible to play the bishop to c4 in all the Sicilian positions including ones where Black plays e6 without d6 like the Kan?

Sicilianer will take a tempo when d5 tracing your bishop 

Which variation are you talking about? English attack? Sozin? Maybe 1.e4 2.Nf3 and Bc4?

Since I like to play Bc4 against d6 sicilians I thought I could play it against all of them. Sometimes they will play e6 and d6 later on when I would prefer the bishop to be on c4.

I basically just want to be able to sac on e6 and d5 a lot. I only castle kingside against the sicilian so I only need to worry about pawn structure and things like that.

I also like to play Bc4 against ....d6 Sicilians, but I think it is a bad move against 2...e6.  When I play Bc4, I generally intend to play a restrained center with the d-pawn on d3.  I play Bc4 to get the bishop outside the pawn chain, and it often ends up on c2 to support the center.  This is basically a reversed English opening with a move in hand.

6. Bc4 also has problems against the Scheveningen. Black can forego a6 and instead move Na6-c5 (since Nbd7-c5 has the problem of the sacrifice). Now it should be hitting the Bb3 and e4. 

There's nothing funnier though and having more satisfaction for me (apart from a devastating attack maybe) than when a really strong player makes an unsound sacrifice and pays for it because of your strong accurate play.