Profiled Front Motor Plates If you are building a new car, this is a great way to go. Understand that if you are replacing an existing motor plate, the notched locations may not match what you have (unless your original build was with a Pro-werks profiled Motor Plate). These Pro-werks Profiled Front Motor Plates are shaped and ready to install, complete with the drilled bolt holes for chassis mounts. The frame rail notches are sized at 1-3/8" diameter to accept floating saddle mounts or direct mounts, measuring 19-1/2" centers on frame rail notches. Compatible with Pro-werks profiled mid-plates. Accurately CNC Machined is always Better Your browser does not support our video. All of the Pro-werks Motor Plates are precision CNC machined from premium 6061-T6 aluminum to exact tolerances for optimum fit and finish. The accuracy obtained from CNC machining is superior to die stamping, laser or water jet cutting methods that have grown to be popular by other manufacturers. Proper engine alignment can only be achieved with accurate locating of the engine to the drive train. This is an area that should not be compromised. The nations top pros count on us - so should you. Yes, we do Custom Do you need unique features; a different thickness or special lightening? (Drawing is of a Mid Plate - Chevy combined with BB Mopar) Special features and multiple-application hole patterns can be accommodated. Different plate thickness may also be available upon request.