Oh dear God! 318 stroker

Hello I'm new here and this might be the end of me for even bringing this up but...... after a long search on the web I have not found what I'm looking for. I have a LA 318 that is sentimental to me so it is what it is. I am looking to stroke it 340-349 Cid. No more no less. I see a lot of stroker kits to get 390 but it's not what I'm looking for. I understand that this is a dumb thing to hash through but any help would be much appreciated!
@Johnny Mac could likely give you some serious sage advice! Blue print has many motors here in FABO. While he is certainly not the only quality vendor on here he is one of the good uns!