Yes, it should bolt straight in, the loom might need some modifications depending on what model you have.
Depends on the size of the engine and what part you are using, but in most cases yes.
No, the engine will not fit. The engine of 1999 is designed to be compatible with the car's other parts, but if you were to put a 1998 engine into a 1999 car it would not work properly.
Yes, darn near any engine can fit into any car with the right fabrications. Sadly, it would take a TON of modifications to have this done. The B13 SER engine code is a SR20DE, which was never offered in a B12. I believe it has been done, but again, lots of modification. Go to srforum.com for all the info on that SR20 engine, what it comes in, what it can be put in, and if it can be put in. Good luck.
Yes
no. your engine fits 1995-1999
Coolant recovery tank
Normally you can just put in the car in Google and get the engine size, Wiki also does have all the cars in the world each year and the engine size they come with, but if these still don't help, there should be a panel on the engine that tells you how much cc or how big the engine is. If it reads 1789cc its most likely a 1.8L which is pretty much what every sentra has. But the only other two options are 2.0L and 2.4L. I'm guessing that I would say that the Sentra GXE is a 2.0L because it was a higher model then th XE or the basic package.
no.because the transmission and everything else will not match
Yes you can put a RB 26 in a sentra, It's gonna cost you about $10,000 in Fabrication plus engine and electrical, for the right price you can do anything, the domestic boy have been putting V8s in Chevy luminas, ford focus and a few others I've seen over the years.
Yes it can . . simply put. You can even drop a civic engine in it
Yes, a 1999 Ford Taurus Sho Engine will fit in a 2007 Ford Taurus.
DexcoolDexcool