I've seen a thread here with the question "What is your favorite engine?" But not your 3 favorite engines.
Now, the question is, What are your 3 favorite engines of all time. And for those who can't narrow it down to 3, then choose 5. And the reason for your choices, if you want to.
I can narrow it down to 3 plus one "extra" and have posted photos for reference...
#1. 1967-1969 Dodge 440-Magnum 4-bbl. Big on cubes, plenty of torque yet very civilized- no problem sitting in traffic on a hot day. Also a rugged engine and responds well to mods.
#2. 1968-1970 Cadillac 472-4 bbl. High compression and a good cam generous lift and duration (more than some muscle cars, amazing as it seems) means plenty of power, actually had more rated torque (525 lbs-ft @ 3,000 rpm) than any '60s/'70s muscle car (the '70 Buick GS 455 Stage 1 came closest with 510 lbs-ft). Smooth-running, quiet and very reliable- internal engine problems are rare with a well taken care of example.
#3. 1968-1971 Mopar 426-Hemi. Not the best choice for street use, but the power it makes means I have to include it in my top 3. One of the most well-known engines ever built and the most successful drag racing and dragster engine.
Almost in the top 3: 1968-1970 Mopar 340. In many instances, ran better 1/4 mile times than cars like 396 Chevelles, 383 Road Runners and 390 Fairlanes (when in the lighter Mopars like Darts and Dusters). Relatively good fuel mileage for '60s muscle cars... 15 mpg was possible if you could control your right foot. And, like the 440, tough engines which respond well to mods.