it all depends on what year and apllication my 85 was the same according to napa
yes
YES it can, but the engine would vibrate and shake if it did.
The easiest way is to look at the Harmonic Balancer. The 305 has a wider thicker balancer than the 350. Pus the timing tab on a 305 is located ON the timing cover and the 350 is bolted on the with the cover bolts. Riky9
On the front of the timing chain cover, drivers side towards the top of the harmonic balancer.
There is a tool available from most auto parts stores for this purpose.
Any auto parts store should have or be able to get one, or try jegs.
Yes.
It is possible that the harmonic balancer has spun.check the rubber around the balancer for cracks or decay.If so replace balancer...
There is a mark on the timing chain cover behind the harmonic balancer(behind the crank pulley). The harmonic balancer also has a slot cut in it so that you can line the crank up with the mark on the timing cover. The mark on the timing cover should sit at the 2 o'clock position or the 12 o'clock position. My 96 Chevy 305 is at the 2 o'clock position.
Counterclockwise off. Clockwise on.
The balancer is made of 2 pieces That have a rubber piece in the center of them that hold the balancer together. If the balancer comes apart YES it will knock / make noise and the engine would vibrate/shake. You would be able to move 1 piece of the balancer with your hand if that was the case. Check it.
the harmonic balancer on the 350 is about 10 inches in diameter compared to a 305 it has about 8 inch diameter on the harmonic balancer