Billet Rocker Cover Set Big Twin (66-84) Silver Harley

【S&S Cycle 90-4305 Billet Rocker Cover Set Big Twin (66-84) Silver Harley Engine Parts Plot】
■ Product Description S&S polished billet rocker covers for Shovelhead engines have a beautiful appearance, but the commitment is not just to the exterior. The sophisticated design offers many advantages compared to conventional cast rocker boxes. Machined from 6061-T-6511 aluminum billet on a state-of-the-art CNC machining center, these rocker boxes achieve high dimensional accuracy and stability. The top and bottom of the cover are sealed with O-ring type seals, eliminating concerns about leaks. The rocker shafts used in S&S rocker boxes have a design that is both strong and economical. Anyone who has replaced a Shovelhead rocker shaft will understand that this product saves time and cost when it comes to top-end rebuilds. ■ Compatible models Harley Davidson / Harley-Davidson Big Twin (66-84) ■ Specifications Color: Silver Material: Aluminum Finish (surface treatment): Polished ■ Notes * The image is for illustration purposes only. It includes products with different sizes and colors. Product designs and specifications may change without notice. Please understand.