Jim if these are the: 12554290...94-96...350..........Gen.II, "LT1", cast iron version, used
on "9C1" Police package, Impala SS,
Cadillac Fleetwood, Buick Roadmaster
reverse flow cooling
I have a nice stock reverse flow block & factory water pump that will fit these heads. It is vat cleaned and crack checked.
Adger Smith
Adger Smith Performance Engines
2802 W 7TH ST
Texarkana TX
903-794-7223 shop
903-824-4924 cell
adgersperf@aol.com E-mail
www.adgersperf.com web site(no mail)