5. Chrysler 392 V8 Hemi
In a relentless quest for performance, Chrysler introduced an even bigger, more powerful Hemi for 1957. The new 6.4-liter engine came with 392 CID of displacement with 325 to 345 HP in standard form. Although the new block was bigger and the engine components were different, the characteristic Hemi head was still there.
For high-performance applications in the exclusive Chrysler 300 D coupes and convertibles, the 392 V8 delivered 375 HP. There was even an experimental fuel-injected version that produced 390 HP that they installed in just 16 cars. In those days, fuel injection was a revolutionary technology, but it wasn’t dependable.
All early Chrysler Hemi engines displayed amazing tuning potential, so they used them in drag and stock car races all over America. However, the 392 was the favorite since it had a stronger block that could withstand higher horsepower and forced induction.