Yes, it was a blown head gasket. After mulling this over, I decided to buy two reconditioned heads from these guys: https://www.cylinder-heads.com/
$355/head
Complete and ready to install
5-year warranty
Surprisingly, it doesn't matter what condition your cores are in. No matter what, they will accept them and not charge you, according to the core return policy posted on their website.
$355/head
Complete and ready to install
5-year warranty
Surprisingly, it doesn't matter what condition your cores are in. No matter what, they will accept them and not charge you, according to the core return policy posted on their website.