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B&m

B&M 168-Tooth Flexplate 20340 Flexplate, 168-Tooth, SFI 29-1, Chevy, Each

SKU: BMM20340

Flexplates

B&m

B&M 168-Tooth Flexplate 20340 Flexplate, 168-Tooth, SFI 29-1, Chevy, Each

SKU: BMM20340

Flexplates
A$424.84
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

IMPORTANT NOTICE: This will not fit 1999-2000 6.0L applications with 0.400 in. extended crank flange and came with a flat flexplate. This will not fit 1999-2000 4.8L applications that originally came with a manual transmission. Flexplate spacer is required for retrofitting Non LS era transmissions to LS engines.

B&M flexplates are tough enough to handle severe applications and are ideal for 6,000+ rpm usage. They have precision-stamped centers and a rust-resistant, gold iridited finish. Some units are SFI-approved and are NHRA/IHRA-legal for all classes.

Part Type

Flexplate SFI C/M GM LS Engine (Except Truck)

Data: v4.2 - Upd: 2026-10-13 18:40:54

Specifications

Product Attributes - Brand
B&M
Product Attributes - Manufacturer's Part Number
20340
Product Attributes - Part Type
Flexplates
Product Attributes - Product Line
B&M Flexplates
Product Attributes - UPC
019695203405
Product Attributes - Ring Gear Tooth Quantity
168-tooth
Product Attributes - Flexplate Diameter (in.)
14.00
Product Attributes - Rear Main Seal Style
1-piece
Product Attributes - Engine Balance
Internal
Product Attributes - Flexplate Material
Steel
Product Attributes - SFI Rating
SFI 29.1
Product Attributes - Marine Use
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
This will not fit 1999-2000 6.0L applications with 0.400 in. extended crank flange and came with a flat flexplate. This will not fit 1999-2000 4.8L applications that originally came with a manual transmission. Flexplate spacer is required for retrofitting Non LS era transmissions to LS engines.

Reference Information

Brand Name/s B&m
StreetFX SKU bmm20340
SFX Item ID 5051743
Supplier Item Code 5051743
Manufacturer SKU 20340
Manufacturer UPC N/A
Alternative References BNM20340, 168-Tooth

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1998
    Ending Year2004
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
    Converter Bolt Pattern10.750 in.
    Crankshaft to Flywheel/Flexplate Attachment6-bolt
  • MakeCHEVROLET
    Beginning Year1998
    Ending Year2004
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.7L/350
    Converter Bolt Pattern11.063 in.
    Crankshaft to Flywheel/Flexplate Attachment6-bolt
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2017
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    Converter Bolt Pattern10.750 in.
    Crankshaft to Flywheel/Flexplate Attachment6-bolt
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2017
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size4.8L/294
    Converter Bolt Pattern11.063 in.
    Crankshaft to Flywheel/Flexplate Attachment6-bolt
  • MakeCHEVROLET
    Beginning Year2001
    Ending Year2014
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    Converter Bolt Pattern10.750 in.
    Crankshaft to Flywheel/Flexplate Attachment6-bolt
  • MakeCHEVROLET
    Beginning Year2001
    Ending Year2014
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size5.3L/325
    Converter Bolt Pattern11.063 in.
    Crankshaft to Flywheel/Flexplate Attachment6-bolt
  • MakeCHEVROLET
    Beginning Year2001
    Ending Year2020
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Converter Bolt Pattern10.750 in.
    Crankshaft to Flywheel/Flexplate Attachment6-bolt
  • MakeCHEVROLET
    Beginning Year2001
    Ending Year2020
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.0L/364
    Converter Bolt Pattern11.063 in.
    Crankshaft to Flywheel/Flexplate Attachment6-bolt
  • MakeCHEVROLET
    Beginning Year2008
    Ending Year2020
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.2L/376
    Converter Bolt Pattern10.750 in.
    Crankshaft to Flywheel/Flexplate Attachment6-bolt
  • MakeCHEVROLET
    Beginning Year2008
    Ending Year2020
    Engine TypeV8
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    Engine Size6.2L/376
    Converter Bolt Pattern11.063 in.
    Crankshaft to Flywheel/Flexplate Attachment6-bolt

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