273 and 318 doner parts for 340 Build

I would say that you've already saved $500 on the Block. If it was me I'd sell all all that crap and spent $1,400 on a complete stroker kit bearings Rings light rods the whole nine yards and have gobs of power beyond your World Imagine Nation. By the time the Machine Shop gets done buying Pistons refurbishing rods and grinding your Crank and adding the cost of bearings, Ten Bucks says you have had enough money to buy a stroker kit...
But to answer your question I think all the stuff you using what you just fine.