Speedmaster 168-Tooth Billet Black Oxide SFI Flexplate for Chevy SBC 350 BBC 454 – 2-Piece RMS Design

The Speedmaster 168-tooth billet black oxide flexplate (model 1-226-010) is a high-performance component engineered for Chevy small-block 350, big-block, and 454 engines running automatic transmissions. Built from billet steel with black oxide finish and a two-piece RMS (rotating mass system) construction, this flexplate combines durability with precision engineering for street, strip, and race applications.

Designed for compatibility with Chevy SBC 350, BBC, and 454 platforms, the 168-tooth count matches factory automatic transmission converters. The SFI certification ensures compliance with major racing and performance standards, making it ideal for builds requiring safety-rated components. The billet construction and black oxide coating deliver corrosion resistance and a professional appearance under the hood.

Key Features & Benefits

• 168-Tooth Design: Precise tooth count ensures proper engagement with automatic transmission converters across Chevy SBC, BBC, and 454 engines.
• Billet Black Oxide: High-strength billet steel construction with black oxide finish resists corrosion and oxidation.
• 2-Piece RMS Construction: Two-piece rotating mass system design optimizes balance and reduces vibration.
• SFI Certified: Meets SFI safety standards for racing and high-performance applications.
• Chevy Big & Small Block Compatible: Works with Chevy 350 SBC, BBC, and 454 engines with automatic transmissions.

Specifications

Ideal Applications

• Street and strip automatic-transmission Chevy engine builds
• Race-ready SBC, BBC, and 454 engine platforms requiring SFI-certified components
• High-performance Chevy hot rods and custom engine swaps
• Drag racing and autocross applications with automatic powerplants