My fav is #2 permatex(the thick brown goo in the toothpaste tube), it stays pliable, a light thin EVEN coat around the intake ports and the water ports on BOTH sides of the tin gasket & no paper gaskets which are available seperately for that tin gasket. 77 shop manual shows 45 ft lbs & I couldn't find the pattern anywhere even in the Senatore BB book. RTV will work just need the specific "color" that will resist gasoline and coolant on the intake ports & the coolant ports.