Upgrade your Oldsmobile big-block with the Speedmaster DNA® Billet Black Oxide SFI Flexplate (PN 1-226-012). Engineered specifically for Oldsmobile 400, 425, and 455 engines with a 2-piece rear main seal, this flexplate features a precision-cut 166-tooth ring gear and meets SFI certification standards for added safety and peace of mind in performance and racing applications.
The billet construction combined with a durable black oxide finish delivers exceptional strength and corrosion resistance, making this flexplate a reliable choice for street performance and track use alike. Designed as a direct-fit replacement for compatible Oldsmobile big-block applications with a 2-piece RMS configuration, ensuring a straightforward installation process.
