What do i need to do to supercharge a sb 400. it was rebuilt 6 years
ago but has had less than 1000 miles on it since. i want to put a 142
or 144 charger on it but i really don't want to tear the engine down
this year if i don't have to. i don't know the comp ratio but i
believe its all stock. most of the cataloges claim their superchargers
are pretty much bolt on but one speed shop said i need 8.5:1 ratio ,
new, bigger cam, forged pistons and 4 bolt mains...does this sound
right or can i get away with the stock engine as is. i can see doing
all that if i was going to a 6-71 or 8-71 charger but not a small
street charger. paxton chargers claim to be bolt on and go so what's
the difference...................
.........need some guidance

"redeye-racing" <redeye.racing (AT) hotmail (DOT) com> wrote

Depends on what the compression ratio is, what cam and the bearing for the
blower.

I have a 177 on a 406 with 10 to 1 compression, but it has a serious Comp
roller cam. Don't forget to plan for a lot of heat, in the radiator and
exhaust system.

http://www.superchevy.com/technical/..._blower_motor/

Al