I like taking the stock forged steel cranks and have them offset ground to 3.91 or 3.90, (whatever stroke you can get out of them) with BB Chevy rod size and B motor main size, works good in both 400 and 383 The 400 blocks have thicker main webs than the 440 and 383 do
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
The 400 blocks have thicker main webs than the 440 and 383 do 
