[tekuhn]

I'm not sure how I feel about this information. I thought I was buying a RA-IV SR block. It has the correct RA-IV block part number with an A added, yet it's clear it was intended for replacement of a RA-III with 4-bolt main caps. There is no difference in the block, only the pistons that were fitted to it. Does this information diminish the value of the block somewhat? Is a "B" block worth more than an "A" block if they were in identical condition? Could someone restoring a '70 RA-IV vehicle use this block and it be considered correct? With what I now know, I would have to say no.

I realize this is all subjective, and I didn't buy the block as an investment. I bought it to pair with a set of 614 heads for a '70 Judge I was building. After I bought the WY RA-V crate engine for the Judge, I stopped any plans to build the RA-IV. I no longer have the Judge or the RA-V engine.