About Performance Machine Performance Machine has machined American V-twin brakes, wheels and controls in California since 1970. Its calipers, rotors and matched controls are a benchmark for riders upgrading braking performance and appearance on the same pass. Give your Harley-Davidson a distinctive hot rod appearance with the Performance Machine Scallop Billet Engine Covers. These covers replace stock components with finely machined billet aluminum, featuring the iconic PM logo and a timeless scalloped design. Why riders pick this Billet aluminum construction for premium quality Distinctive scallop design with PM logo Comprehensive set including all major engine covers Includes hardware and gaskets for direct replacement The Scallop line from Performance Machine offers a complete aesthetic upgrade for your V-twin's engine. Each cover is crafted to perfection, providing a custom touch that stands out whether you're cruising down the boulevard or showing off at a rally. It's the attention to detail that truly transforms your ride.Precision Machined for Custom Style Constructed from high-quality billet aluminum for strength and a premium feel Iconic scalloped design with integrated Performance Machine logo for a custom hot rod look Includes a comprehensive set of covers: rocker box, cam, clutch, ignition, derby, inspection, and transmission Supplied with all necessary hardware and gaskets for a direct, hassle-free replacement of OE covers Elevate Your Engine's PresenceThese engine covers are more than just cosmetic; they're a statement of style and quality. Designed as direct replacements, installation is straightforward, allowing you to quickly enhance the visual impact of your Harley Touring, Softail, or Dyna. Pair them with other Performance Machine components for a fully coordinated custom build. Specifications Brand: Performance Machine Manufacturer Part #: 0177-2020-BMP Weight: 3.2 lb Category: Engine Components / Engine Covers Common questions Will these covers fit my specific Harley-Davidson model and year? These are OE-replacement covers for a wide range of Harley-Davidson models. Please use our Shop by Bike feature or consult the manufacturer's fitment guide to confirm compatibility with your exact model year and engine type. What is included in the full set of engine covers? The set includes rocker box, cam, clutch, ignition, derby, inspection, and transmission covers, along with all necessary hardware and gaskets for installation. Are these covers difficult to install? Installation involves removing the stock covers and replacing them with the Performance Machine Scallop covers. Basic mechanical knowledge and tools are required. Refer to your service manual for torque specifications and proper procedures. Ordering from Vtwinbikers Brand new, sourced through authorized US distribution — never used, never grey-market. Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order. Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride. {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://vtwinbikers.com"},{"@type":"ListItem","position":2,"name":"Engine Covers","item":"https://vtwinbikers.com/collections/all"},{"@type":"ListItem","position":3,"name":"Performance Machine","item":"https://vtwinbikers.com/collections/performance-machine"},{"@type":"ListItem","position":4,"name":"Performance Machine Scallop Billet Engine Covers - Harley Touring, Softail, Dyna","item":"https://vtwinbikers.com/products/performance-machine-engine-covers-harley-davidson"}]} {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Will these covers fit my specific Harley-Davidson model and year?","acceptedAnswer":{"@type":"Answer","text":"These are OE-replacement covers for a wide range of Harley-Davidson models. Please use our Shop by Bike feature or consult the manufacturer's fitment guide to confirm compatibility with your exact model year and engine type."}},{"@type":"Question","name":"What is included in the full set of engine covers?","acceptedAnswer":{"@type":"Answer","text":"The set includes rocker box, cam, clutch, ignition, derby, inspection, and transmission covers, along with all necessary hardware and gaskets for installation."}},{"@type":"Question","name":"Are these covers difficult to install?","acceptedAnswer":{"@type":"Answer","text":"Installation involves removing the stock covers and replacing them with the Performance Machine Scallop covers. Basic mechanical knowledge and tools are required. Refer to your service manual for torque specifications and proper procedures."}}]}