Modified Buick 231 Parts

In this budget build, a GM rear end is upgraded in order to hold 400+ HP. See how spherical bushings are replaced in a used 8.5” GM 10 bolt rear end.

This 1960 Buick blurs the line between car and fine art.

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!

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!

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 about the power behind the G-body platform and the steps to upgrade a 7.5" bolt rear end to a 8.5" to withstand high horsepower. See how to change the differential fluid and install new gaskets.

Tim explains the process of adjusting Buick Finned Drums to fit Speedway's self-energizing backing plate assembly.

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 year, the Speedway Motors SEMA booth will host Ron Ernsberger's radical Willys built by the Tin Man's Garage. It's a Hemi-powered hot rod with some classic street rod elegance thrown in, and there's much more going on here than meets the eye...

Decode, ID, and upgrade your GM 12-bolt rear end. Learn axle specs, gear ratios, and best performance parts upgrades.