Modified, Saginaw 4-Speed Parts

Learn how to swap out an LS engine with a modern fuel injected engine into a hot rod for added horsepower, fuel economy, or throttle response. View a list of parts and helpful tips to complete the installation.

This old sedan was untouchable in the early 60's.

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.

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!

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!

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.

After years of dominance with the legendary 4x sedan, "Speedy" Bill Smith and his hotshot driver Lloyd Beckman upgraded to this sleek new offset roadster for the '64 season.

Devyn Peterson is an Auto Tech in the Speedway Motors Customer Experience center. He's also a racer, starting out in karts when he was just 5 years old. He moved up to a Modified when he was 13 and hasn't looked back!

This is more than the story of a vintage sprint car. It's also the story of how a dynamic duo of "Speedy" Bill Smith and Jan Opperman toppled giants at the 1976 Hulman Classic.

In this article, Frank Galusha talks about the challenges and successes he's experienced surviving Speed Week.