Depends on the class...
EXTREME PRO STOCK 932 CU. IN. 2140 HP RACING ENGINE - Sonny's Racing Engines - Sonny's Racing Engines
Google some of Pat Musi's stuff and take a look at some of the mountain motor classes.
Obviously the parts are light but I'm using this as an example when people say a big block won't rev....or a long stroke won't pull rpms...