I have weigh several stock 440, 426W,383 and 400 with stock bores and not hot tanked production blocks and they all weighed between 213 Lbs. and 225 Lbs. The three new unmachined cast iron World blocks weigh right at 320 Lbs. regardless of the bore size
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
The three new unmachined cast iron World blocks weigh right at 320 Lbs. regardless of the bore size 
