Does this seem a little too cheap?

[SWYZ721]

Ok, now I haven't done too much research on a 351 build-up, but doesn't this seem a little cheap?

Why would it be so cheap?

http://www.treperformance.com/Block/Ford357w.html

 

[bjl95mustang]

They don't say what year block. I have seen 351 engines that are for sale for about $100-200 and they just need to be rebuilt. So your probably paying $800-1000 for labor and machining.