I'm getting ready to put a 350 short block together I purchased. I'm using as many parts as possible from my old 305 to save costs. My question is, can I reuse my old harmonic balancer from the 305 on the new 350 or is it advisable to purchase a new one. A new one is only 50 bucks but if I don't need to buy it, thats 50 bucks I can use somewhere else.

 

You can use the old one.

 

I used the 305 balancer with my 350 no problem.

 

Make sure you use the correct timming cover and balancer combo.
there are differences.

 

Thanks, for the responses. TTOP, what differences should I be aware of?

 

https://www.thirdgen.org/forums/tech...ment-85-a.html

 

Thanks for the info. I'll be sure to check to make sure I use the right one.

 

Will any aftermarket harmonic balancer work with a timing cover with the timing mark at the 2 o'clock position or do I need a specific one? If so, do you have a P/N for the one I would need?