balance ?

I've had one of these engines in a daily for the last 25years and never had any problems with the crank or bearings and it's had a very hard life, countless quarter mile runs, aussie burnout comps, long state to state drives. I had a mate build it on a budget back when stroker cranks were exotic and pricey, infact I'd never seen any for sale here in Australia at the time so it was a cheap alternative to a performance engine, even cheaper than sourcing a 360 here, hard to believe yes but the 360 wasn't here in big numbers but the 318 was..