The Speedmaster DNA® Billet SFI Flexplate (PN 1-226-004) is engineered specifically for Oldsmobile 400, 425, and 455 engines equipped with a 2-piece rear main seal. Featuring a 166-tooth ring gear, this flexplate is built to SFI specifications, making it an ideal choice for performance builds and race applications where safety certification is required.
Constructed from billet material for superior strength and durability over stock replacements, this flexplate delivers reliable power transfer between your engine and transmission. Whether you're building a street/strip cruiser or a dedicated race car around the classic Oldsmobile big-block, the Speedmaster 1-226-004 offers the quality and compliance you need for confidence at the track.
MPN1-226-004
UPC840136500964
