Ouch.......
Tom that's because the best truck block you have....I squeaked a 12.21 out of it.Dean notes: "Tony said the 65 truck block i bought in Texas is one of the nicest used blocks he has ever seen..."
That's probably due to all the crappy blocks I've been bringing to Day Automotive over the years .
He's got one of mine right now needing two sleeves (but otherwise it's a standard bore QA block from 1963).
Good luck with your multiple builds!
TomK