69 gts 383 block

oldmopardude said

An A body block is worth considerably more than a regular 383 as the motor mount casting for the A body does not have the second mount pillar, and clearly has not ever had one. So, anyone familiar with an original A body car will see right away if the block did not come from an A body car. Also, All A body blocks have only one pillar, and are never stamped HP.

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Not sure I would say considerably more, certainly it is to the person who owns the car to where this block belongs, if it still exists. IMHO, to gouge that person would be kind of morally bankrupt... It is an a-body only block - true, but the regular 383 will also fit in any other body, including an a-body. One can also mill the left rearward engine mount off of a regular 383 to create the effect. The mounting tab was milled off at the factory with a small amount of the stub remaining. The milling marks are clear on the factory blocks. It wasn't a specially cast block but had an added step in its finishing process. Yes, it wouldn't be a "real" 383 a-body block, but it also isn't correct either way especially when and if VIN's are introduced into the equation.
It is in the other parts that it becomes (considerably) worth more, oil pan, dip stick and tube, exhaust manifolds these are very unique to the a-body only. The oil pan, stick and tube, are now being correctly repopped. There once very high value is now diminished. I can see both sides of the story though...