Can someone explain to me what is the difference? from one of the sponsors look at this:

http://www.osakajdmmotors.com/long_blocks/index.html

then look at this:

http://www.osakajdmmotors.com/engines/index.html

both have GSR motors and one is a longblock... what is the difference?

answer that then the other question is what is a long block basically... i'm clueless. wanna learn