I can pick up a vortec 454 long block for $300, but the cylinder wall in one of the bores has a scratch from a bolt that when into the cylinder and screwed up the piston. Can the scratch be fixed through boring the cylinders or is it trashed?

I plan on building a 496. Here is the pic. It's obviously a Gen VI block with 4 bolt mains

http://i874.photobucket.com/albums/ab301/LoweRider89/IMG00146-20100313-1449.jpg

pic of the block

http://i874.photobucket.com/albums/ab301/LoweRider89/IMG00148-20100313-1451.jpg

Can probably be bored out, to what extent I don't know, just take it to a machine shop and ask.

If too damaged, sleeve that cyl. and bore the block.

why do you have 2 threads on same subject in 2 different sections?

http://www.nastyz28.com/forum/showthread.php?t=179880