[DADZZ64]

ok i thought i would ask you guys before i take it off right now i putting a 1974 455 together but need a timing cover iam wondering will my old timing cover on my 1964 389 interchange with my 1974 455 are they the same they look the same but iam not sure ...

[DADZZ64]

ok i thought i would ask you guys before i take it off right now i putting a 1974 455 together but need a timing cover iam wondering will my old timing cover on my 1964 389 interchange with my 1974 455 are they the same they look the same but iam not sure ...

[tom s]

if you use the 64 I think you need the 64 balancer also.Tom

[rompn63]

I have used an early timing cover (4 bolt water pump) on later blocks but I had to put a plug in the timing covers upper drivers side hole.

[DADZZ64]

So hey guys i looked at my 64 389 timing cover and i can see why i would have to use the 64 389 harmonic balancer also .. the 455 balancer is bigger and it would hit the timing peg on the 389 timing cover SO being that the 389 harmonic balancer is smaller then the 455 will it still work on my 455 if i use the 389 timing cover and 389 balancer ????????

[engineer]

yes it will work.

[DADZZ64]

Question for u all so iam using my 389 timing cover and harmonic balancer on my 455 but i was wondering it is smaller then the 455 balancer will i have a vibration problem because it is a smaller balancer then the 455 ? or should it be ok