Hollow sounding knock form 383
Well i will try to make this short I took over my brothers project truck. 1997 sonoma it has a 383 stroker kit that was purchased from speedway. He never had it running right due to five accel shorty plugs being bad.
I installed aluminum heads on the motor and noticed that #4 and 5 cyl were not firing tops of the pistons were clean like new. he drove it like this for about a month. Today my buddy heard a hollw knocking sound comming from the engine. The motor has a bad vibration so i disconnected the convertor to eliminate the trans. But dam the bad luck its comming from the motor.
Well i will be pulling the motor this weekend any ideas on what i should be looking for. The knock is slow so i dont think its a rod, and its has good oil pressure. Im thnking maby the crank any help on this matter would be greatly appreciated thanks.