The six-pack engine had the same lift and duration cam as the high performance 440 engine.
The 446 pack rods are actually the same as the standard 440 rods.
The six-pack engine had 490 foot-pounds of torque, equal to the 426 Hemi engine.
The peak torque of the six-pack engine was at a lower RPM, making it a killer engine on the street.
Despite plans to continue the six barrel and sixpack engines in 1972, very few were actually built.