Have a 427 Chevy on the dyno at the moment. It is a 1966 four bolt casting, originally from a Corvette according to the guy who owns it. Unfortunately, the original owner was so paranoid about someone stealing his 427 that he stamped his name and driver license number over the factory numbers and ruined the value of the block. These early Corvette blocks sell for up to $10,000 to a collector.

Since it isn't a numbers block anymore the current owner hot rodded it. Stroked it to 496, added Trick Flow heads and a solid street roller cam. It is a nice engine, makes 630 hp and 615 torque. Going in an El Camino. Should be a blast.