Yet another engine swapping question

I put the 403 breather on the engine. However, it wobbles instead of shaking :laugh: .

 

The deal I got on the 350 was good, so I couldn't pass it up. $175 for engine, trans, w/ accesories. Its a good running 56K 1970 Buick 350. I also pretty much have a Caprice cop car 3.42 posi when I want it. I think this combo will serve my daily driving needs well. The BB woulda been more fun, but in this case, practicality wins. Plus the 350 is a 9 to 1 compression engine and both of my 430s are the 10 to 1 engines. I need only to tow on occasion. I should be able to run cheap gas too. I did observe something for you while measuring the width of the V-6 compared to a BB. Looks like heater box clearance with a BB is good.