Chrysler 8-3/4 Inch, Engine Parts

Determining your engine's bore and stroke displacement, and more with our easy to use calculators

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

In this Tech Tip, John responds to a customer looking to upgrade the 8” stock differential in his Cougar to a 9” open diff.

Engine Cylinder Numbers

An engine guide that will help determine if an internal or external balanced flexplate is needed for your engine.

Speedway Motors Custom Length Driveshaft Kits make it easy to have a custom made driveshaft that's perfect for your application delivered right to your door!

Fuel injection is here to stay and we delve into the benefits of such retrofit systems for your classic muscle car or street rod in our EFI retrofit buyer's guide!