Modified Engine Service

There's a new spec engine option for the 2025 IMCA Modified season. Here's what you need to know.

Learn all about what is a 604 crate motor and what it takes to run this small block Chevy in your race or street car.

How proportioning valves work, fixed vs adjustable valves explained, and how to reset a prop valve.

Speedway Motors announced today the introduction of a new IMCA Modified Spec Racing Engine as they kick off the 2025 race season along with discounts Jan. 27-Feb. 2 to help their customers get ready for race season.

Learn a few tips on how to properly mount Modified bodies and some products that will help get your race car body fabrication job done!

Do I need break-in oil for my engine and why. When should I not use an engine break-in oil? What do I look for when choosing a break-in oil?

In order to be competitive and win, it's important to find the right set up that works for you and your car. Here's some general reminders to remember during set up!

Take a look at a few of the rare and wonderful Chevy engines in the Museum of American Speed!

Heath P. tells his story on how the passion for 'hot rodding' was instilled in him by his grandfather. From driving tractors on their family farm to becoming a Ford family, you are in for a good read.

This article demonstrates how to install a complete Winters quick change kit with additional parts including birdcages, brackets, and calipers for a modified race car.