BM 20237 Flexplate, 153 Tooth for 55-85 Internal Balance Small Block Chevy

SKU: 20237
Fits 1955 to 1985 GM small block V8 engines except the 400 cid engine. Uses a 153 tooth ring gear. Has 10.75 inch bolt pattern. Compatible with Powerglide, TH350, TH400, and TH700R4 automatic transmissions.
Price: $101.19
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Verify This Part Fits Your Vehicle

The B&M Racing SFI approved Flexplates are ideal for extreme duty race applications as well as street cars. These flexplates are SFI 29.1 approved, and legal for use in both NHRA and IHRA sanctioning bodies.

  • Ideal For Street Applications
  • Includes SFI Certification Sticker
  • NHRA and IHRA Legal For All Classes
  • To Extreme Duty Racing
Outside Diameter (in)12.84Tooth count153
Weight (lb)5.50Crankshift Bolt Hole Count6
SFI Certification StickerIncludedBalanceInternal
Dual PatternYesIHRA LegalYes
NHRA LegalYesSFI ApprovedYes
 California Proposition 65 Information

WARNING: This product can expose you to chemicals including Cadmium and cadmium compounds which are known to the State of California to cause cancer and birth defects, or other reproductive harm (For more information go to


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