Quote:

The scale reads 490 lbs for this big block.




Does that include the cart?

I forgot to mention that my 499# 499ci B engine had a fluidamper and heavy BCR girdle on it but OE stamped steel valve covers.

It sounds like the iron-head smallblock will save a few pounds but cost a lot of displacement, port area, valve size, etc. You might be better off with the BB and some ballast over the rear axle.