In the case of an internally balanced motor, the lower rotating assembly inside the motor (pistons, rods, crank and so on) is balanced independent of any external parts. In an externally balanced motor, the converter and/or harmonicbalancer are required to ensure that the engine does spin out-of-balance.
internally
it is definitaley internally balanced
yes a 2.8 litre Chevy is internally balanced
no, it is externally balanced
All 350's are internally balanced.
all 1995 350s are internally balanced. still need harmonic balancer though
YES it is.
No. The 400 is externally balanced, the 350 is internally balanced.
No it will not work. It will bolt up but 454 is externally balanced and 305 is internally balanced.
No. The 454 is an externally balanced engine, the 350 is internally balanced.
It is internally balanced. The 400 small block is the only Chevy engine that is externally balanced.
They are both internally balanced, so it should work fine.