Need a stroker kit for my 340

go here
http://www.scatcrankshafts.com/Download_Catalog2.asp
click on the word chrysler

on page 3 of the pdf you will see chrysler small block rotating assemblies
i would go with one of the ones under the category "340 MAIN 4340 FORGED COMPETITION ROTATING ASSEMBLIES" not any of the cast assemblies

this one is the highest compression:
416 4-340-4000-6123-2123 2-ICR6123-2124 4.000" 6.123" FORGED 4.070 FLAT 12.1 11.3 10.8 1-48013-1 1-48013 1-48013BI

1-48013 full kit $1,433.95 at summit (your machine shop balances)
comes with pistons rings rods bearings etc