B and M Automotive - Chevy Flexplate

The B and M Automotive Chevy Flexplate (Part Number: BMM20232) is engineered for 1970-1980 Chevrolet 400 Small Block engines with external balance and a two-piece rear main seal. Constructed from high tensile strength steel, it resists elongation and cracking, ensuring durability under high-performance conditions. The flexplate features a 168-tooth ring gear with double-sided welds for added strength and includes dual bolt patterns (10.75-inch and 11.5-inch) for versatile torque converter compatibility. It comes with SFI 29.1 safety certification, making it NHRA and IHRA legal for all classes. The zinc-plated chromate finish enhances corrosion resistance, making it ideal for both street applications and extreme-duty racing. Compatible with Powerglide, TH350, TH400, and TH700R4 automatic transmissions.