im thinking bout trading a bare 455 olds block and a set of heads for cam bearings and a cam and lifters you guys think its worth it?

Not sure the make but its 300 dur and i think it was 535 lift

No. For one I'd have to know the person very well and then I still don't like putting used engine parts in a engine I plan on keeping and using in a harsh marine application unless I seen what it came out of and how and why it was taken out. I'd rather spend the money first then the double time and money fixing it later.     Roy.