There’s nothing new about reinforcing a stock V-8 engine’s internals to handle more power. Aftermarket forged crankshafts, rods, and pistons have been around forever. If you know exactly what to look ...

From the February 1970 issue of HOT ROD: Producing well over 1 hp per cubic inch, Ron Hoettels' home-brewed 283-based four-cylinder beat the legendary Chevy V-8 engine at its own game. Racing history ...

Each modification to a car's engine exposes a new weak point. Maybe it's insufficient injector flow or poor-breathing heads, or it's a crankshaft has the same approximate rigidity as a Twinkie.