What type of an engine could this be? It's a big block.
What is it worth?

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT

The owner says that it was in a boat since 1974 and ran for only less than 100 hours, but it was in a boat and is painted blue

Yeah or Neah?

 

Note: he has a number correction in the ad.

3963512 427 68-69 Passenger 385,425 HP
3963512 427 69 Chevelle,Camaro COPO (Central Office Production Order)
3963512 427 69 Corvette Late 69
3963512 454 70 Corvette,Passenger 360,390 HP
3963512 454 70 Chevelle LS-6 450 HP
3963512 454 70-71 Pass,Chevelle, Monte Carlo

3963512 454 71 Corvette 365,425 HP

 

The block has been decked at least once so any 'proof' that it was a Corvette engine is long gone.

 

That's right.. Thanks.

I just need the block. but $1500 may be a bit too much for a two bolt main block.