1970-1980 Chevrolet 400 Small Block, 168-Tooth for externally balanced engines.

Part Number: 20232

As performance levels increase, an O.E. style flexplate just won't cut it and a stronger option is a necessity to prevent transmission and/or converter failure. B&M has you covered with our high performance flexplate designed for 1955-1985 400ci small block chevy V8 engines (externally balanced) with two piece rear main seal. Features include high tensile strength steel construction to resist elongation and cracking, dual bolt pattern 10.75 or 11.5-inch converter mounting locations, 168 tooth ring gear with double-sided welds for added strength and comes with SFI 29.1 safety certification insuring the ultimate in safety and performance. The assembly is then Zinc plated and treated with a Chromate Conversion Coating for added corrosion resistance and durability. B&M SFI approved flexplates are ideal for extreme duty race applications as well as street cars, tow vehicles or other vehicles needing the added protection and toughness that B&M has been delivering since 1953. Compatible with Powerglide, TH350, TH400 and TH700R4 automatic transmissions.

Features and Benefits

• NHRA and IHRA Legal For All Classes
• Dual Pattern 10.75 and 11.5-Inch
• Includes SFI Certification Sticker
• Ideal For Street Applications
• Zinc Plated Chromate Finish
• To Extreme Duty Racing
• Proven B&M Quality

Fits 1955-1985 GM 400 cid small block engine. For externally balanced engines uses a 168 tooth ring gear. Has 10.75-inch and 11.5-inch bolt patterns. Compatible with Powerglide, TH350, TH400, and TH700R4 automation transmissions