IT depends on what u are looking for and have to spend. IMO there really is no "best" swap. go for waht u like, not what everyone else does. I like my sr20 and wouldnt have it any other way. some ppl dig rb20s, rb25s. some like ka-t. others go all out and swap in a rb26. I even seen a VG30dett in a 240sx. Its all in preference and what your money allows. either way u will have fun n haul ass.

suprised u didnt get flamed but this isnt the best place for 240 info. www.240sxforums.com helps a lot. dont hesitate to SEARCH first. or call dirtysouthdrifter.