Or did I miss something that is really holding you back from doing that?
I vote this too... grip and rip it. Dont over think it.
I am dropping in a 70 340 hp x heads stock rebuid..came in a parts car...oil looks clean i am just going to change water pump, thermostat some gaskets and go...hopefully.
1966 Dart GT
...down to only 1 mopar for the first time in 15 years!