SKU: 18859148927

B&M Steel SFI Certified Flexplate - GM LS Engines - 20340

Sale price$170.06 Regular price$188.95
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Description

B&M Steel SFI Certified Flexplate - GM LS Engines - 20340Overview: 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 1998 up 4. 8L, 5. 3L, 5. 7L & 6. 0L LS engines with 6 bolt crankshaft flange, including 2010 15 Camaro with L99 engine. Features include high tensile strength steel construction to resist elongation and

Overview:

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 1998-up 4.8L, 5.3L, 5.7L & 6.0L LS engines with 6-bolt crankshaft flange, including 2010-15 Camaro with 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 insuring the ultimate in safety and performance. The assembly is finished with a 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

Application:

Year Make Model Submodel Engine Size
2003 Chevrolet Corvette 50th Anniversary Edition Pace Car
2001 - 2004 Chevrolet Corvette Base
2003 Chevrolet Corvette 50th Anniversary Edition
2005 - 2008 Pontiac Grand Prix GXP 325/5.3 V8
2006 - 2009 Chevrolet Impala SS 325/5.3 V8
2006 - 2007 Chevrolet Monte Carlo SS 325/5.3 V8
1997 - 2000 Chevrolet Corvette 350/5.7 V8
1997 - 2002 Pontiac Firebird Formula 350/5.7 V8
1997 - 2002 Pontiac Firebird Trans Am 350/5.7 V8
2004 Pontiac GTO 350/5.7 V8
1998 - 2002 Chevrolet Camaro Z28 350/5.7 V8
1998 - 2002 Chevrolet Camaro Z28 SS 350/5.7 V8
2005 - 2006 Pontiac GTO 364/6 V8
2006 - 2007 Chevrolet Corvette Base 364/6 V8
2008 - 2009 Pontiac G8 GT 364/6 V8
2008 - 2012 Chevrolet Corvette Base 376/6.2 V8
2009 Pontiac G8 GXP 376/6.2 V8
2010 - 2012 Chevrolet Camaro SS 376/6.2 V8
2010 - 2012 Chevrolet Corvette Grand Sport 376/6.2 V8
2012 Chevrolet Camaro ZL1 376/6.2 V8

Specs:

# of Teeth 168
Brand B&M
California Proposition 65 Chemical Name Cadmium and cadmium compounds
California Proposition 65 Required Yes
Crankshift Bolt Hole Count 6
Dual Pattern Yes
Emission Code 5
IHRA Legal Yes
NHRA Legal Yes
Outside Diameter (in) 14.13
Product Type Automatic Transmission Flexplate
SFI Approved Yes
SFI Certification 29.1
SFI Certification Sticker Included
Warning California Proposition 65
Weight (lb) 6

FEATURES

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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 18859148927

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El Diablo
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★★★★★ 1
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Size: 6FT*6FT, Color: Black
This product is absolute garbage! It literally took all day to put it together and if the air conditioning blows on it the wrong way than the whole thing top over and it falls apart. It’s not made of quality material and is very flimsy. The only reason I’m not returning it is because it’s too difficult to put together and I don’t wanna spend that much time trying to take it apart. Do not buy this!
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Reviewed in the United States on September 25, 2025
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Natasha Spencer
Birmingham, US
★★★★★ 3
Cheap
Size: 6FT*6FT, Color: Black
They serve their purpose as long as you leve them in one place and not moving them around and they're kinda flimsy and some of the velcros are cut too short and can't stay closed
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Reviewed in the United States on April 18, 2026
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Chris Stockbridge
Fort Morgan, US
★★★★★ 5
Worth the investment
Size: 1 Panel, Size: 1 Panel
I had to order this in an emergency. To put it in brief words, I live in a two level studio unit. My bedroom TV fell backwards off the bureau accidentally and down the stairs to its demise. Putting this together was no problem, instructions were thorough and easy. It came with several bars that connected together smoothly and an Allen key for the brackets and screws for the feet. I did one less horizontal bar on top and bottom so it could fit, which was great because with all of them on it was too long. However I ran into the difficulty of the horizontal bars popping out of the brackets during the last stages, but eventually got it done. I was also looking for a specific type of divider where I could adjust the feet so I could tuck it in between the dresser and banister. Glad I made this purchase.
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Reviewed in the United States on February 19, 2026
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Interloper
Chelsea, US
★★★★★ 1
You Get What You Pay For! A Piece Of Junk!
Size: 1 Panel
Flimsy and a piece of junk. Don’t waste your money. Assembly is a pain because it is so flimsy. Divider is thin. You can see right through it. Very wobbly.
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Reviewed in the United States on February 25, 2026
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JAMES HAYES
Belleville, US
★★★★★ 4
Instructions are useless
Size: 1 Panel
The instructions are poorly written and not very helpful. The divider itself is easy to assemble, and honestly, it would’ve been quicker if I had skipped the directions altogether. Once put together, though, it works as intended.
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