SKU: 18859148927

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

$170.06 $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

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 18859148927

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4.6 ★★★★★
Based on 30 reviews
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Product Reviews
M
Verified Purchase
Mai Vues
Charlottesville, US
★★★★★ 5
Great addition to our coffee station.
Size: EK6002
Love it. It's accuracy might be a little fuzzy about measuring the last tenth of a gram, probably due to rounding. But it showed a difference when a single coffee bean was added. Easy to read. The removable pad makes it easier to clean. It fits right on my little coffee station. To be honest, I didn't read the instructions. It's fairly intuitive if you know how they are supposed to work. I like it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 26, 2025
A
Verified Purchase
Amy R
Lexington, US
★★★★★ 1
Broken, after 1 week of use
Size: EK6002
Sorry but, no. Stopped working after less than 1 week of use. They pre-install cheap batteries. I used it for a few days but then It wouldn’t turn on so I switched them out with fresh ones. Now the start/stop button isn’t working. Discovered during an extraction…arg!! Don’t mess with me while performing my craft! lol. Build quality is poor. Don’t over handle it, yeah, that’s how fragile it appears to be. I like that it is light weight but so light, I question if the durability and weight factor are compromising the output accuracy. Doesn’t feel reliable at all. I also question if this is waterproof, again, having everything to do with build quality. This is not my first scale but it is for coffee use so I’m on the hunt for a better one. This was cheap in price, yes. But as the old saying goes, you get what you pay for. One good thing that came out of this is, while it was working, I realized how much this was really needed for me to make exceptional and accurate espresso shots, so time to find a better one. I wanted this to work, I really did.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
J
Verified Purchase
Jason C
Massapequa, US
★★★★★ 5
4.95 stars
Color: Black
TLDR: Buy it. It works well, it has impressive and useful features, it looks great, it’s thin/low-profile, and it’s a great price. Detailed review: I’m very happy with this scale, and it has certainly upped my espresso game by leaps and bounds. I’m able to weigh my beans very precisely down to a tenth of a gram (roughly the weight of a single bean), so my dosing is on point. Also, it fits beneath the portafilter with room to spare for my cup, so I can weigh my shots and accurately measure my input/output ratio. And automatic mode is magic! When the espresso hits the cup, the timer starts running, so I can measure flow rate along with everything else! Overall, super easy to use and very necessary for the at-home barista. One caveat: It acted weird on the 2nd or 3rd day, and I thought I was going to have to return it. The weight would slowly creep up even though I wasn’t adding any coffee. I dusted it off, made sure it was dry, set it on a more stable surface… I still don’t know what the matter was, but it stopped freaking out and it hasn’t really given me any trouble since. Also, I should mention that the automatic function doesn’t always work 100% perfectly; it works, and usually works quite well, but depending on the flow rate, you might get some drops dribbling into the cup and the timer not detect it right away. (I think the timer must be activated according to some sort of algorithm that looks for a certain increase in a certain amount of time, so a slower initial drip rate might not trigger it at first.) Also weirdly, it seems like about half of the time when the weight stops increasing (i.e., espresso stops flowing) , the timer pauses (as I think it’s supposed to do), but other times, the timer keeps running until you manually stop it. I don’t know… It’s a weird glitch, I guess, but it doesn’t really make any difference. The weight is accurate, and that’s the primary thing to keep an eye on. So, is it perfect? No, I guess not. But, it works extremely well and functions perfectly for my purposes. In fact, it’s a lot nicer and fancier than I expected – plus, it’s more affordable and more streamlined than its obvious rival the Acacia.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2024
H
Verified Purchase
hbkscorpio
Phoenix, US
★★★★★ 5
Excellent and super accurate
Color: Black, Color: Black
I had a precision oxo which was more expensive than this one but not great though, it would register .4 grams suddenly and not sensitive to the 1-2 bean increments. I bought this one for espresso specifically and man it is fantastic so accurate, super responsive, well built, size is great if you want to weigh your shot under your portafilter. I have a fellow series 1 and it’s amazing working with it. Overall highly recommend and for the price it’s amazing great value! Not sure why would I buy a bookoo for $130 or a fellow scale for $200. This one works great for $40
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
B
Verified Purchase
Brennan McKissick
Natrona Heights, US
★★★★★ 5
Just a tiny, accurate scale
Color: Black
Works flawlessly after I calibrated it compared to my other. Out of the box it was (very) off. Now it's within .1 of a gram. It's far more responsive than I expected. It's perfect for espresso and it's tiny so it fits on the smallest drip trays.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026

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