The 427 stroker consists of a cast iron 427 block, 428 crank, Le Mans rods, aluminum intake and throttle bodies, aluminum dove heads, aluminum water pump, and steel Canton RR pan. It is picture below as weighed.
Ready for the results (measured with Longacre race car scales):
351 stroker = 467 lbs.
427 stroker = 503 lbs.
Not quite the 150 lbs or 2/3 the weight figures that get thrown around. I know the Dart block is heavier then the standard block (less then 25 lbs), but by the time you add a girdle to the stock block… The main differences are the Dart engine does not have the alternator, brackets and pulleys mounted (FE does). Dart engine does not have carb mounted, or plug wires (FE is complete). FE weight does not include stand, Dart does. Bottom line is that the Dart engine when completely configured and subtracting the stand weight will be less then 30 lbs lighter then the FE. Not much more then the Big Macs we have hanging over our belts
