Back in the early ’90s, when Chrysler realized that it would need a new truck motor to replace its 318/360 Magnum engines to meet the coming emissions standards, the company considered two pushrod engines along with one SOHC design and concluded that a pushrod motor with a pair of Hemi heads that really breathed would make a great truck engine and could still be used in its cars. This is how the 5.7L Gen III Hemi was born in 2003.
I have not worked on everyday, common engines for years. Everyone who comes into my shop is a hobby-level special car enthusiast. I build all types of performance American brand engines. A huge part of my business has become building and rebuilding engines for classic cars, which it turns out, there is an adequate market for engine builders.