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Description
B&M Steel SFI Certified Flexplate - Small Block Chevrolet - 20232Overview: 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 1955 1985 400ci small block chevy V8 engines (externally balanced) with two piece rear main seal. Features include high tensile strength steel construction to resist elongation and cracking, dual bolt pattern 10.
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 1955-1985 400ci small block chevy V8 engines (externally balanced) with two piece rear main seal. Features include high tensile strength steel construction to resist elongation and cracking, dual bolt pattern 10.75 or 11.5-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 then Zinc plated and treated with a 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. Compatible with Powerglide, TH350, TH400 and TH700R4 automatic transmissions.
Features:
- NHRA and IHRA Legal For All Classes
- Dual Pattern 10.75 and 11.5-Inch
- Includes SFI Certification Sticker
- Ideal For Street Applications
- Zinc Plated Chromate Finish
- To Extreme Duty Racing
- Proven B&M Quality
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1978 | Pontiac | Grand Safari | ||
| 1970 - 1972 | Chevrolet | Brookwood | 400/6.6 V8 | |
| 1970 - 1974 | Chevrolet | Caprice | 400/6.6 V8 | |
| 1970 - 1972 | Chevrolet | Chevelle | Base | 400/6.6 V8 |
| 1971 - 1972 | Chevrolet | Chevelle | SS | 400/6.6 V8 |
| 1976 | Chevrolet | G20 | Chevy Van | 400/6.6 V8 |
| 1976 | Chevrolet | G20 | Sportvan | 400/6.6 V8 |
| 1975 - 1980 | Chevrolet | G20 | 400/6.6 V8 | |
| 1970 - 1972 | Chevrolet | Townsman | 400/6.6 V8 | |
| 1971 - 1976 | GMC | Sprint | 400/6.6 V8 | |
| 1965 - 1969 | Oldsmobile | 442 | 400/6.6 V8 | |
| 1967 | Oldsmobile | Cutlass | Turnpike Cruiser | 400/6.6 V8 |
| 1968 | Oldsmobile | Cutlass | Base | 400/6.6 V8 |
| 1965 - 1966 | Oldsmobile | F85 | Base | 400/6.6 V8 |
| 1968 - 1969 | Oldsmobile | Vista Cruiser | 400/6.6 V8 | |
| 1968 - 1978 | Pontiac | Bonneville | 400/6.6 V8 | |
| 1968 - 1978 | Pontiac | Catalina | 400/6.6 V8 | |
| 1968 - 1977 | Pontiac | Firebird | Base | 400/6.6 V8 |
| 1968 - 1969 | Pontiac | Firebird | 400 | 400/6.6 V8 |
| 1969 - 1979 | Pontiac | Firebird | Trans Am | 400/6.6 V8 |
| 1970 - 1974 | Pontiac | Firebird | 400/6.6 V8 | |
| 1973 - 1975 | Pontiac | Grand Am | 400/6.6 V8 | |
| 1968 - 1975 | Pontiac | Grand Prix | 400/6.6 V8 | |
| 1972 | Chevrolet | Chevelle | Concours | 400/6.6 V8 |
| 1972 | Chevrolet | Chevelle | Malibu | 400/6.6 V8 |
| 1972 | Chevrolet | Chevelle | Nomad | 400/6.6 V8 |
| 1970 - 1975 | Chevrolet | El Camino | Base | 400/6.6 V8 |
| 1970 | Chevrolet | El Camino | Custom | 400/6.6 V8 |
| 1970 - 1975 | Chevrolet | El Camino | SS | 400/6.6 V8 |
| 1971 - 1976 | Chevrolet | El Camino | 400/6.6 V8 | |
| 1970 - 1976 | Chevrolet | Impala | 400/6.6 V8 | |
| 1970 - 1971 | Chevrolet | Kingswood | Base | 400/6.6 V8 |
| 1972 | Chevrolet | Kingswood | 400/6.6 V8 | |
| 1973 - 1975 | Chevrolet | Malibu | Base | 400/6.6 V8 |
| 1970 - 1976 | Chevrolet | Monte Carlo | 400/6.6 V8 | |
| 1973 | Chevrolet | Monte Carlo | Base | 400/6.6 V8 |
| 1979 - 1980 | GMC | K2500 | 400/6.6 V8 | |
| 1975 - 1978 | GMC | K25 Suburban | 400/6.6 V8 | |
| 1979 - 1980 | GMC | K2500 Suburban | 400/6.6 V8 | |
| 1977 - 1978 | GMC | K35 | 400/6.6 V8 | |
| 1979 - 1980 | GMC | K3500 | 400/6.6 V8 | |
| 1975 | Oldsmobile | 98 | 400/6.6 V8 | |
| 1975 | Oldsmobile | Custom Cruiser | 400/6.6 V8 | |
| 1975 | Oldsmobile | Delta 88 | 400/6.6 V8 | |
| 1976 | Pontiac | Catalina | Base | 400/6.6 V8 |
| 1976 | Pontiac | Catalina | Safari | 400/6.6 V8 |
| 1976 | Pontiac | Firebird | Esprit | 400/6.6 V8 |
| 1976 - 1979 | Pontiac | Firebird | Formula | 400/6.6 V8 |
| 1975 - 1977 | Pontiac | Grand LeMans | Safari | 400/6.6 V8 |
| 1976 - 1977 | Pontiac | Grand LeMans | Base | 400/6.6 V8 |
| 1976 - 1977 | Pontiac | Grand Prix | Base | 400/6.6 V8 |
| 1976 - 1977 | Pontiac | Grand Prix | SJ | 400/6.6 V8 |
| 1979 - 1980 | GMC | G3500 | 400/6.6 V8 | |
| 1975 - 1979 | GMC | Jimmy | 400/6.6 V8 | |
| 1975 - 1978 | GMC | K15 | 400/6.6 V8 | |
| 1979 - 1980 | GMC | K1500 | 400/6.6 V8 | |
| 1975 - 1978 | GMC | K15 Suburban | 400/6.6 V8 | |
| 1979 - 1980 | GMC | K1500 Suburban | 400/6.6 V8 | |
| 1975 - 1978 | GMC | K25 | 400/6.6 V8 | |
| 1978 | GMC | C15 | High Sierra | 400/6.6 V8 |
| 1978 | GMC | C15 | Sierra Classic | 400/6.6 V8 |
| 1978 | GMC | C15 | Sierra Grande | 400/6.6 V8 |
| 1978 | GMC | C15 | Street Coupe | 400/6.6 V8 |
| 1979 | GMC | C1500 | Base | 400/6.6 V8 |
| 1979 | GMC | C1500 | High Sierra | 400/6.6 V8 |
| 1979 | GMC | C1500 | Sierra Classic | 400/6.6 V8 |
| 1979 | GMC | C1500 | Sierra Grande | 400/6.6 V8 |
| 1979 | GMC | C1500 | Street Coupe | 400/6.6 V8 |
| 1980 | GMC | C1500 | 400/6.6 V8 | |
| 1976 - 1978 | GMC | C25 | 400/6.6 V8 | |
| 1979 | GMC | C2500 | 400/6.6 V8 | |
| 1978 | GMC | C25 Suburban | 400/6.6 V8 | |
| 1980 | GMC | C2500 Suburban | 400/6.6 V8 | |
| 1976 - 1978 | GMC | C35 | 400/6.6 V8 | |
| 1979 | GMC | C3500 | 400/6.6 V8 | |
| 1976 | GMC | G15 | Vandura | 400/6.6 V8 |
| 1979 | GMC | G1500 | Rally | 400/6.6 V8 |
| 1979 | GMC | G1500 | Rally STX | 400/6.6 V8 |
| 1975 - 1978 | GMC | G25 | 400/6.6 V8 | |
| 1979 - 1980 | GMC | G2500 | 400/6.6 V8 | |
| 1975 | GMC | G35 | Rally | 400/6.6 V8 |
| 1975 | GMC | G35 | Rally STX | 400/6.6 V8 |
| 1975 | GMC | G35 | Vandura | 400/6.6 V8 |
| 1975 | GMC | G35 | Rally Camper Special | 400/6.6 V8 |
| 1975 | GMC | G35 | Vandura Special | 400/6.6 V8 |
| 1976 - 1978 | GMC | G35 | 400/6.6 V8 | |
| 1975 - 1976 | Chevrolet | G30 | Sportvan | 400/6.6 V8 |
| 1975 - 1976 | Chevrolet | G30 | Hi-Cube | 400/6.6 V8 |
| 1977 - 1980 | Chevrolet | G30 | 400/6.6 V8 | |
| 1975 - 1980 | Chevrolet | K10 | 400/6.6 V8 | |
| 1975 - 1979 | Chevrolet | K10 Suburban | 400/6.6 V8 | |
| 1975 - 1980 | Chevrolet | K20 | 400/6.6 V8 | |
| 1975 - 1980 | Chevrolet | K20 Suburban | 400/6.6 V8 | |
| 1977 - 1980 | Chevrolet | K30 | 400/6.6 V8 | |
| 1975 - 1976 | Chevrolet | Laguna | 400/6.6 V8 | |
| 1975 | Chevrolet | Malibu | Classic | 400/6.6 V8 |
| 1975 | Chevrolet | Malibu | Classic Estate | 400/6.6 V8 |
| 1976 | Chevrolet | Malibu | 400/6.6 V8 | |
| 1977 | Chevrolet | P10 | 400/6.6 V8 | |
| 1976 | Chevrolet | P30 | 400/6.6 V8 | |
| 1976 | GMC | C15 | 400/6.6 V8 | |
| 1978 | GMC | C15 | Base | 400/6.6 V8 |
| 1972 - 1975 | Pontiac | Grandville | 400/6.6 V8 | |
| 1968 - 1973 | Pontiac | GTO | 400/6.6 V8 | |
| 1971 | Pontiac | GTO | Base | 400/6.6 V8 |
| 1968 - 1970 | Pontiac | LeMans | 400/6.6 V8 | |
| 1971 - 1977 | Pontiac | LeMans | Base | 400/6.6 V8 |
| 1971 - 1977 | Pontiac | LeMans | Sport | 400/6.6 V8 |
| 1975 | Buick | LeSabre | Custom | 400/6.6 V8 |
| 1970 - 1975 | Chevrolet | Bel Air | 400/6.6 V8 | |
| 1975 - 1979 | Chevrolet | K5 Blazer | 400/6.6 V8 | |
| 1976 - 1980 | Chevrolet | C10 | 400/6.6 V8 | |
| 1978 - 1979 | Chevrolet | C10 | Cheyenne | 400/6.6 V8 |
| 1978 - 1979 | Chevrolet | C10 | Custom Deluxe | 400/6.6 V8 |
| 1978 - 1979 | Chevrolet | C10 | Scottsdale | 400/6.6 V8 |
| 1978 - 1979 | Chevrolet | C10 | Silverado | 400/6.6 V8 |
| 1976 - 1980 | Chevrolet | C20 | 400/6.6 V8 | |
| 1976 - 1980 | Chevrolet | C20 Suburban | 400/6.6 V8 | |
| 1976 - 1978 | Chevrolet | C30 | 400/6.6 V8 | |
| 1975 - 1976 | Chevrolet | Caprice | Classic | 400/6.6 V8 |
| 1975 | Chevrolet | Caprice | Estate Wagon | 400/6.6 V8 |
| 1975 - 1976 | Chevrolet | Caprice | Classic Sport | 400/6.6 V8 |
| 1976 | Chevrolet | Caprice | Classic Estate | 400/6.6 V8 |
| 1976 | Chevrolet | Caprice | Classic Landau | 400/6.6 V8 |
| 1975 | Chevrolet | El Camino | Classic | 400/6.6 V8 |
| 1976 | Chevrolet | G10 | 400/6.6 V8 | |
| 1976 | Chevrolet | G20 | Beauville | 400/6.6 V8 |
| 1970 - 1972 | Chevrolet | Biscayne | 400/6.6 V8 | |
| 1973 - 1977 | Pontiac | LeMans | Safari | 400/6.6 V8 |
| 1967 | Buick | Gran Sport | 400/6.6 V8 | |
| 1967 | Buick | Skylark | 400/6.6 V8 | |
| 1975 - 1976 | Chevrolet | G30 | Beauville | 400/6.6 V8 |
| 1975 - 1976 | Chevrolet | G30 | Chevy Van | 400/6.6 V8 |
| 1977 | Pontiac | Grand Prix | LJ | 400/6.6 V8 |
| 1975 - 1977 | Pontiac | Grand Safari | 400/6.6 V8 | |
| 1968 | Buick | Sportwagon | 400/6.6 V8 | |
| 1968 - 1970 | Pontiac | Executive | 400/6.6 V8 | |
| 1968 - 1969 | Pontiac | Tempest | 400/6.6 V8 | |
| 1969 | Buick | Sportwagon | Base | 400/6.6 V8 |
| 1970 | Pontiac | Tempest | Base | 400/6.6 V8 |
| 1966 | Buick | Gran Sport | 401/6.6 V8 | |
| 1966 | Buick | Skylark | 401/6.6 V8 | |
| 1970 - 1971 | Chevrolet | Brookwood | 402/6.6 V8 | |
| 1972 | Chevrolet | Chevelle | Base | 402/6.6 V8 |
| 1972 | Chevrolet | Chevelle | Concours | 402/6.6 V8 |
| 1972 | Chevrolet | Chevelle | SS | 402/6.6 V8 |
| 1972 | Chevrolet | Chevelle | Malibu | 402/6.6 V8 |
| 1972 | Chevrolet | Chevelle | Nomad | 402/6.6 V8 |
| 1972 | Chevrolet | Chevelle | Concours Estate | 402/6.6 V8 |
| 1972 | Chevrolet | Chevelle | Greenbrier | 402/6.6 V8 |
| 1977 - 1978 | Pontiac | Bonneville | 403/6.6 V8 | |
| 1977 - 1978 | Pontiac | Catalina | 403/6.6 V8 | |
| 1977 | Pontiac | Firebird | Base | 403/6.6 V8 |
| 1977 - 1979 | Pontiac | Firebird | Formula | 403/6.6 V8 |
| 1977 - 1979 | Pontiac | Firebird | Trans Am | 403/6.6 V8 |
| 1977 | Pontiac | Grand LeMans | Base | 403/6.6 V8 |
| 1977 | Pontiac | Grand LeMans | Safari | 403/6.6 V8 |
| 1977 | Pontiac | LeMans | Base | 403/6.6 V8 |
| 1977 | Pontiac | LeMans | Sport | 403/6.6 V8 |
| 1977 | Pontiac | LeMans | Safari | 403/6.6 V8 |
| 1977 | Pontiac | Grand Prix | Base | 403/6.6 V8 |
| 1977 | Pontiac | Grand Prix | SJ | 403/6.6 V8 |
| 1977 | Pontiac | Grand Prix | LJ | 403/6.6 V8 |
| 1977 | Pontiac | Grand Safari | 403/6.6 V8 |
Specs:
| # of Teeth | 168 |
|---|---|
| Balance | External |
| Brand | B&M |
| California Proposition 65 Chemical Name | Cadmium and cadmium compounds |
| California Proposition 65 Required | Yes |
| Crankshift Bolt Hole Count | 6 |
| Dual Pattern | No |
| Emission Code | 5 |
| IHRA Legal | Yes |
| NHRA Legal | Yes |
| Outside Diameter (in) | 14.1 |
| Product Type | Automatic Transmission Flexplate |
| SFI Approved | Yes |
| SFI Certification | 29.1 |
| SFI Certification Sticker | Included |
| Warning | California Proposition 65 |
| Weight (lb) | 6.25 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.6 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Cute for workouts & relaxed look w/jeans and skirts! Nice material and love the little side slits!
Size: X-Large, Color: Plum, Size: X-Large, Color: Plum
Absolutely love this shirt! Fits perfectly in all the right places. Look gorgeous and covers my stomach without adding to much bulk and extra fabric. High quality feel to the material which laundries beautifully! It’s perfect for the gym or dressing up with a pair of jeans or skirt! Love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
★★★★★ 4
Sheer and Soft.
Size: Medium, Color: White
This shirt was purchased to be worn for tennis during our hot, August days in Texas. It is very lightweight and exceptionally soft. The cut is flattering - especially the armholes, which are at the perfect place - not too low so that your bra shows, and not too high to impede movement. The color is "white," but it is more of a light cream color. I did not give it five stars because it came out of a gentle washing and light drying very wrinkled, which was a big disappointment. I was hoping for Wash & Wear, but I had to steam it to get out the wrinkles. Also - it's almost too sheer ... I will probably wear a colored bra underneath it with a matching colored tennis skirt to look purposefully coordinated. While I am not familiar with yoga, Pilates, or gym attire, I would imagine that this shirt would be perfect for these types of exercise. I ordered the Medium (instead of the Large, which was suggested for me by Amazon). The Medium fit is perfect - it falls gracefully and is not tight anywhere - the large would have been too big.
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Reviewed in the United States on August 10, 2022
★★★★★ 5
Comfy and cute
Size: 3X, Color: Black
Perfect length. I normally wear a plus size 2X but I wanted it to be looser fitting so I got a 3X and it’s the exact fit I was looking for. The length hides my apron belly. The fabric doesn’t stick to me. Materiel is nice and lightweight. Hasn’t wrinkled, dryer didn’t shrink it, super stretchy. Perfect for an active lifestyle
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Reviewed in the United States on May 8, 2026
★★★★★ 3
Nice fit, but tank top materials feel hot
Size: Medium, Color: Dark Grey Heather
I bought the "dark grey heather" tank.
Pros:
-comfy relaxed fit (not snug or tight)
- armholes not too low
- i like the crewneck (but it sits a tiny bit high)
- shirt length is a good "normal" length (not short, and not too EXCESSIVELY long like other Amazon brand women's shirts in the past)
- looks casual and nice
- didn't shrink after machine wash and dry.
Cons:
- the WORST thing: material feels hot, and it's medium weight, not lightweight like the item description claims. Don't like the 6% ELASTANE, 38% MODAL in this fabric blend. Feels hot in humid hot Houston weather. (But I like the 56% pima cotton!)
- the "heathering" (maybe because of the materials) feels like tiny fabric fibers are itching me and not comfortable, especially if the air conditioner is not running,
- the hem has side slits and is slightly longer in the back than in the front.
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Perfect fit and comfy
Size: Large, Color: Black
I love these shirts! They are soft and lightweight. They fit as they should. I have a black, periwinkle, dark green, and grey. Great tank for the money and perfect to exercise in.
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Reviewed in the United States on May 28, 2026