Speedmaster PCE291.1074 Fits Ford FE 390 427 428 Sfi Approved Fluid Harmonic Balancer Dampner

the term internal balanced damper"refers to the lack of any built in weight or offset in the casting. When identifying your existing damper, (balancer) you must look on the backside."This is not"visible"if the damper is"mounted on the engine."If your damper has no offset in the casting or weight, then you have an internal, (neutral)"style damper. If you do see the offset in the casting or a weight, you have what is classified as an external damper. They are perfectly balanced, hence the term neutral.

• Reduced wear on the main bearings and timing gear, more stable valvetrain operation, and less chance of crank failure
• SFI Approved