While the Small Block Chevy may be the most tunable and the Chrysler HEMI the most powerful, Ford’s Flathead V8 engine has been around for nearly a century and is the grandfather of every V8 ...

Some true old-school hot-rodders might mention the Ford Flathead ... there is one engine that is respected in every muscle circle, regardless of brand affiliation, and it's the Chrysler 426 ...

This 5.0-liter straight-6 flathead engine could be tuned ... as it was built for economy models, Chrysler’s Slant Six engine produced good low-end torque and was found in many large models.

The Chrysler HEMI is one of the most well-known ... which gave them an airflow advantage over early flathead engines since ...