SKU: HAY15-075
UPC: 084041150757
MPN: 15-075
The Flexplate SFI 166-Tooth Buick 403-455 67-76 is a heavy-duty flexplate designed for classic big-block Buick engines from 1967 to 1976. This component is essential for connecting your engine's crankshaft to an automatic transmission, effectively absorbing torque impulses and accommodating minor misalignments during power delivery.
Manufactured by HAYS, this flexplate features a 166-tooth count that aligns with the starter ring gear engagement pattern for Buick big-block engines. It is built to SFI 166 specifications, ensuring safety and durability for both street and competition applications. The design isolates vibrations and protects the transmission from shock loads, making it suitable for high-horsepower builds.
Builders restoring or modifying 1967–1976 Buick 403 and 455 engines will find this SFI-rated flexplate indispensable, especially when upgrading to modern transmissions or increasing engine output. Proper installation requires engine removal and transmission disassembly, ensuring a secure fit for optimal performance.
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