Folks can someone advise me regarding an engine swap i did from 5.0gi PEFS to a 5.7. Everything is the same exept the engine. The issue i am having is that the new 5.7 has a lot of vibration. To the point of tossing the serpentine belt off the crank pulley. The balancer is new 8 inch because the old one was doing the same thing after transfer. I thought it was the balancer but clearly i was wrong. The balancer for the old 5.0gi pefs is 3856924. The balancer is 8 inch in diameter. The question is is the balancer for the 5.0 the same as the 5.7? The current balance is installed correctly and bottomed out in crackshaft.
