When you put the Road Runner, Wile E. Coyote, and big-block Mopar power together, you get one of the most iconic muscle cars of all-time. Whether your Road Runner has a 340 ci small block, a legendary 426 Hemi, or even a Gen III Hemi, Holley has the parts and the knowledge to transform your hot rod into whatever you want it to be.

When adding a 5 or 6-speed transmission to your classic muscle car, we have the driveline conversion components you need. Whether it’s a shifter, transmission crossmember, or tunnel patch, we have the brands and components you need to upgrade and complete your driveline conversion. Most parts in this category assume you will be keeping the original engine. For engine and transmission combination swap parts, look to the Engine Swap Parts Category.