Billet Flexplate SFI SBC/BBC 168-Tooth

The Billet Flexplate SFI SBC/BBC 168-Tooth from ProTorque is an essential drivetrain component for serious small-block and big-block Chevrolet engine builds. A flexplate bridges your crankshaft and torque converter in automatic transmission applications, absorbing vibration and accommodating slight misalignment while transmitting engine power smoothly to the transmission. Whether you're building a street machine, racing platform, or restoring a classic Chevy, selecting the correct flexplate specification is critical to transmission longevity and overall drivetrain reliability.

Manufactured from billet aluminum, this flexplate delivers superior strength and durability compared to cast alternatives, making it ideal for high-horsepower applications and aggressive driving conditions. The 168-tooth design ensures precise engagement with your torque converter, while the SFI certification (Specialty Equipment Market Association) confirms it meets safety standards for racing and performance environments. ProTorque's precision machining process guarantees balanced construction that minimizes harmonic vibration, reducing stress on your crankshaft flange and extending transmission component life. The billet construction also provides better fatigue resistance under repeated high-load cycles typical of track use and heavy throttle applications.

This flexplate is compatible with both SBC (Small-Block Chevrolet) and BBC (Big-Block Chevrolet) engines paired with automatic transmissions requiring a 168-tooth converter interface. Mechanics and engine builders select billet flexplates when planning forced-induction upgrades, nitrous oxide systems, or high-rpm naturally aspirated builds where factory components risk failure. Installation requires careful alignment with your crankshaft and torque converter to prevent runout issues; a dial indicator check is recommended after installation. At 8.33 lbs, this flexplate adds minimal rotating mass while providing the strength demanded by turbocharged, supercharged, or heavily modified powerplants.