I missed the beginning of this thread. I weighed my stroked 427 on a stock car electronic scale and it was 503#. This is a cast iron block 427 with 428 crank (452 ci), dove alum heads, canton steel
oil pan, Edelbrock water pump, lemans rods, complete FPP rocker arm setup, alum Weber intake, and alum Weber like throttle bodies. Complete engine less flywheel.
It would be nice if someone that installs a lot of engines in cobras, etc. would weigh each engine before install and let us know
Easy enough to weigh engine on stand and subtract the stand weight. Most cobra motors have alum intakes and a large number have alum heads. It would be nice to get a apples to apples comparison.