[Turk]

Only people I have heard building 427 Side Oilers for $12,000 or less is Southern Automotive.

As for a good iron block, without sleeves or cracks...be prepared to pay more than you would for a Shelby Aluminum block.

How does $7650 on ebay for a NOS FE block sound?
Where are you going to find Side Oiler blocks for $1000.00 to $2000.00?

TURK.
For a well built Side Oiler start thinking upwards of $20,000 and more.