69 350 with no balancer bolt on crank?

[bigarmzz]

I have a good running 350/300 hp motor out of a 69 SS impala, I drove the car home a few years ago, (body was shot), it only has around 40,000 on it, and it drove great ( until I robbed the motor and transmission Out of it)

Its date coded for 11/68, But it has no crank bolt, no bolt holding the harmonic balance on, appears the balancer is a press fit..? Ive never seen a stock 350 have a pressed on balancer. Can i get some opinions here? What u all think?

I’m really wanting to use this motor but very reluctant because of the lack of the crank bolt