will an 8" harmonic balancer fit on any 350 or does it need to be a specific one. I have a chance to pick up a new one off of a zz4 crate motor for 40 bux. mine is old and one of the screw holes is starting to strip out. and my 350 is a 1979 block with 4 bolt mains. here is a pic of it

Make sure the rubber ring is in good shape if you are reusing one. Helicoil the bad bolt hole.

But,.. you could almost get a new balancer for what the helicoil install will cost you.. (if you don't have one).

i am getting a new zz4 hb for 40 bux never used i just wanted to know if it will fit my application 1979 350

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alright thanks i just bought it

Brett

Make sure you have the right timing cover to go with it... it will hit the welded-on timing tab on the TC that comes stock on our cars. But, the timing tab that goes with the right TC for that balancer, will be in a place that's totally useless (buried under the PS pump) so you won't be able to use a timing light.