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B&M Steel SFI Certified Flexplate - GM LS Engines

1997+ GM LS 4.8/5.3/6.0/6.2/7.0L, 168-Tooth, Internal Balanced

Part # 20340 Be the first to write a review

B&M Steel SFI Certified Flexplate - GM LS Engines

Estimated Ship Date: 06/12/2024
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Emissions

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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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 GM 1997-up 4.8L, 5.3L, 5.7L & 6.0L LS engines with 6-bolt crankshaft flange, including 2010-15 Camaro with the L99 engine. Features include high tensile strength steel construction to resist elongation and cracking, 10.75 and 11.06-inch converter mounting locations, 168 tooth ring gear with double-sided welds for added strength and comes with SFI 29.1 safety certification ensuring the ultimate in safety and performance. The assembly is finished with Zinc plating and 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. Note: Will not fit 1999-00 6.0L applications with 0.400 inch extended crank flange/flat flexplate or 1999-00 4.8L engines that originally came with a manual transmission. A flexplate spacer is required for retrofitting Non-LS era transmissions to LS engines.

Features:

  • 10.75, 11.06 Inch Bolt Pattern Convertor Mount
  • Includes SFI 29.1 Certification Sticker
  • Zinc Plated Chromate Finish
  • 168 Tooth Ring Gear
  • B&M Quality

About B&M

Shop B&M's official site for automatic shifters, transmissions and components that exceed all your performance enthusiast needs at Holley.com!

# of Teeth168
ApplicationChevrolet
BalanceInternal
Brand B&M
Converter Bolt Pattern10.75 in., 11.06 in.
Crankshaft Bolt Hole Count6
Dual PatternYes
Emission Code5
EngineGM Gen III/IV (LS)
IHRA LegalYes
NHRA LegalYes
Outside Diameter (in)14.13
Product TypeFlexplates
SFI ApprovedYes
SFI Certification29.1
SFI Certification StickerIncluded
Weight (lb)6
UPC019695203405
California Proposition 65 Chemical NameCadmium and cadmium compounds
California Proposition 65 RequiredYes
Part Number20340
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This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Fits GM LSx motors. Including 2010 and newer automatic Camaro with L99 engine and 1st through 4th generation Chevrolet Camaro and Pontiac Firebird. Also fits all GM LSx motors using an automatic transmission including Corvette, GTO, and G8
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