head gaskets chrysler 383 raw water cooled.

[anthony dantona]

I have rebuilt a 1971 tri-cabin with chrysler 383. . the past owner changed the heads not to long ago. left head on port engine rusted trough on #1 cylinder. have new head and gasket past owner supplied. engines are raw water cooled and he gave me a fel pro gasket 17059 . it appears that 2 cooling pors are blocked with the gasket. is this the correct gasket or is there 2 seperate gaskets for fresh and raw water cooling. if so I should pull the other heads and replace. any thoughts