This was one of the generic GM 502 crate motors, ( I know.. I hate crate motors!). It came-in to be worked-over. So out went some of the crappy parts that come in those engines, such as the low budget stamped steel rockers, the weennie steel push rods, the weak / stock main and head bolts, the weenie little single roller timing assembly and all of that kind of junk these things come with, and in went a WAY better roller valve train with ultra light (transfer bar style) roller lifters, Crane Gold roller rockers, ARP main and head studs, a much better roller cam, we ported the small port heads that come on these engines, as well as the Victor Jr. intake manifold. Now it has 4340 speedway type Lunati Rods, ultra light JE blower pistons, Total Seal rings and lots of other little "goodies" like that in it now. It's all set-up to work with that monster D-2 Pro-Charger that sits off to the side with a 2" cog belt drive. No belt slippage problem anymore! Now it can make 4 digit horsepower in a very tame (and streetable) package. It ain't a generic 502 anymore, that's for sure!

These types of blowers are great for hiding under the hood of your car. As far as price goes, by the time you buy everything and make it complete, they cost about as much as a Roots type blower. They function the same too. In other words, the power making capabilities are about the same as each other.

You can expect something like this to run in the $13,000 - $14,000 area depanding on the variables.