Detroit engines ,you like....not mopar...

Since no Mopar, Chevy, or SBF
351 Cleveland
429 and 460 Ford
326 and 389 Pontiac, machined combustion chambers
455 Buick Most underrated muscle motor
455 Olds, Best Friend had one in a Correct Craft Jet Boat
300 Ford straight six, Great gas mileage and would live forever