[Excaliber]

The Boss 302, as I understand it, used the 351W heads. In order to take advantage of the much larger ports (like a tunnel port would have) the engine had to run at very high rpm, 7,000 or so. The kind of rpm, often seen during a road race, led to a LOT of failures of the engines.

You know I could see buying this strictly for a "conversation piece", like a piece of art. The price at $1,500 is not out of line. Fascinating!

Edit:
Ron61 reminded me it was the 351 Cleveland heads not the 351 Windsor heads the Boss ran.