Hi after searching im going to post my first, if its found somewhere in here forgive me as Im not an expert at motor building and the lingo! I am going to pick up a B18a1 from the junk yard to to do a LS/vtec conversion on. I was wandering if there is a way to know the difference if its a long or short block? or did they only come one way? Thanks in advance!

 

Long block = Head, block, pistons, crank, oil pan, etc. Basically a complete motor

Short block = Block, pistons, crank, oil pan.

 

^^^what he said

or short block = bottom end
and long block = top and bottem end assembled

 

yep.. and if your going to do an ls/vtec setup than all you need is the ls short block, and you'll have to buy a vtec head separate

 

Thanks for responding all, thats what I needed to know!