[DeTomaso] 4-bolt with open chamber heads?

[Larry Finch]

All,

eBay auction for a 38,000 miles 1973 Pantera engine. Buy-it-now $3500 or make offer.

http://tinyurl.com/lmp3u6r

Photos show a four bolt Cleveland block, and what sure look like open chamber heads.

I am no engine guru, but I thought 4-bolts were only OEM with closed chamber heads?

Incorrect?

Replacement block or heads?

Larry
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   All,
   eBay auction for a 38,000 miles 1973 Pantera engine. Buy-it-now $3500
   or make offer.
   http://tinyurl.com/lmp3u6r
   Photos show a four bolt Cleveland block, and what sure look like open
   chamber heads.
   I am no engine guru, but I thought 4-bolts were only OEM with closed
   chamber heads?
   Incorrect?
   Replacement block or heads?
   Larry