When we heard that Mopar Performance had introduced 4-inch-stroke replacement cranks for its small-block engine family, we took notice. When we found out these cast-steel gems can be snagged for under ...

We show you part one of building a high performance Mopar stroker motor. In this issue we look at putting a 413 crankshaft to get 432 cubs and 545 horses - Mopar Muscle Magazine ...

When it came time to give our trusty '91 Comanche a kick in the power department, we knew we didn't want to do an engine swap. The 4.0L was lacking in power, but it fit the truck well: anvil-reliable, ...

The 1971 Plymouth Duster 340 was a great example. With bright color options, heavy-duty drivetrain components and a stirring ...

The 383 wasn't created by Chevy, but the bow tie has adopted it, as have lots of muscle-car owners. The secret is its "just ...

We slammed the 4.7L inline-six stroker engine from Mopar Performance in our ’91 Comanche in a weekend (“Weekend Mopar 4.7L Stroker,” July ’11) and have been enjoying it ever since. Just enough time ...

Michigan-based Prefix is a performance parts company specialized in pretty much all things Mopar. One of their most interesting products is the Viper 9.0L Xtreme Engine package, a stroker kit that ...