value of parts

340 complete cores are $1200-2500, 340 manifolds are selling for $600-850, 8-3/4 pigs really depend on case number, sure grip, and ratio, anywhere from $50-750. Fresh 360 short block $1000-2000. 4-speed trans depends on year and what they look like inside, $100-1000. Valiant could be $1000-5000. These are retail values, of course you need to determine what you would pay which should be 40-50% of retail...