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Description
B&M Steel SFI Certified Flexplate - Big Block Chevrolet - 20233Overview: 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 1965 1990 Chevrolet big block 454ci (externally balanced) V8 engines 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 1965-1990 Chevrolet big block 454ci (externally balanced) V8 engines 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
- 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 |
|---|---|---|---|---|
| 1990 | Chevrolet | C1500 | Cheyenne | 454/7.4 V8 |
| 1990 | Chevrolet | C1500 | Scottsdale | 454/7.4 V8 |
| 1990 | Chevrolet | C1500 | Silverado | 454/7.4 V8 |
| 1990 | Chevrolet | C1500 | 454 SS | 454/7.4 V8 |
| 1990 | Chevrolet | C1500 | WT | 454/7.4 V8 |
| 1975 - 1986 | Chevrolet | C20 | 454/7.4 V8 | |
| 1973 - 1986 | Chevrolet | C20 Suburban | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Biscayne | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | Blazer | 454/7.4 V8 | |
| 1970 - 1975 | Chevrolet | Bel Air | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Brookwood | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | C10 Pickup | 454/7.4 V8 | |
| 1973 - 1980 | Chevrolet | C10 Suburban | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | C20 Pickup | 454/7.4 V8 | |
| 1989 - 1990 | Chevrolet | G30 | 454/7.4 V8 | |
| 1970 - 1976 | Chevrolet | Impala | 454/7.4 V8 | |
| 1976 - 1980 | Chevrolet | K10 | 454/7.4 V8 | |
| 1976 - 1978 | Chevrolet | K20 | 454/7.4 V8 | |
| 1973 - 1985 | Chevrolet | K20 Suburban | 454/7.4 V8 | |
| 1977 - 1986 | Chevrolet | K30 | 454/7.4 V8 | |
| 1988 - 1990 | Chevrolet | K3500 | 454/7.4 V8 | |
| 1975 | Chevrolet | Laguna | 454/7.4 V8 | |
| 1975 | Chevrolet | Malibu | Classic | 454/7.4 V8 |
| 1970 - 1975 | Chevrolet | Monte Carlo | 454/7.4 V8 | |
| 1976 - 1979 | Chevrolet | P20 | 454/7.4 V8 | |
| 1975 - 1990 | Chevrolet | P30 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R20 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R20 Suburban | 454/7.4 V8 | |
| 1989 | Chevrolet | R2500 | Cheyenne | 454/7.4 V8 |
| 1989 | Chevrolet | R2500 | Scottsdale | 454/7.4 V8 |
| 1989 | Chevrolet | R2500 | Silverado | 454/7.4 V8 |
| 1989 - 1990 | Chevrolet | R2500 Suburban | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | R30 | 454/7.4 V8 | |
| 1989 - 1990 | Chevrolet | R3500 | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | V20 Suburban | 454/7.4 V8 | |
| 1990 | Chevrolet | V2500 Suburban | 454/7.4 V8 | |
| 1987 - 1988 | Chevrolet | V30 | 454/7.4 V8 | |
| 1989 - 1990 | Chevrolet | V3500 | 454/7.4 V8 | |
| 1971 - 1974 | Chevrolet | El Camino | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | G20 Van | Base | 454/7.4 V8 |
| 1973 - 1974 | Chevrolet | K10 Suburban | 454/7.4 V8 | |
| 1975 | Chevrolet | Caprice | Estate Wagon | 454/7.4 V8 |
| 1975 - 1976 | Chevrolet | Caprice | Classic Sport | 454/7.4 V8 |
| 1975 - 1976 | Chevrolet | Caprice | Classic | 454/7.4 V8 |
| 1976 | Chevrolet | Caprice | Classic Estate | 454/7.4 V8 |
| 1976 | Chevrolet | Caprice | Classic Landau | 454/7.4 V8 |
| 1970 - 1975 | Chevrolet | El Camino | Base | 454/7.4 V8 |
| 1976 | Chevrolet | G20 | Beauville | 454/7.4 V8 |
| 1976 | Chevrolet | G20 | Chevy Van | 454/7.4 V8 |
| 1975 - 1976 | Chevrolet | G30 | Beauville | 454/7.4 V8 |
| 1975 - 1976 | Chevrolet | G30 | Chevy Van | 454/7.4 V8 |
| 1975 - 1976 | Chevrolet | G30 | Hi-Cube | 454/7.4 V8 |
| 1988 | Chevrolet | G30 | Sportvan | 454/7.4 V8 |
| 1970 - 1972 | Chevrolet | Townsman | 454/7.4 V8 | |
| 1971 - 1972 | GMC | Sprint | 454/7.4 V8 | |
| 1970 - 1972 | Chevrolet | Chevelle | Malibu | 454/7.4 V8 |
| 1971 | Chevrolet | Chevelle | Nomad | 454/7.4 V8 |
| 1970 - 1972 | Chevrolet | Chevelle | Base | 454/7.4 V8 |
| 1970 - 1974 | Chevrolet | Corvette | 454/7.4 V8 | |
| 1970 | Chevrolet | El Camino | Custom | 454/7.4 V8 |
| 1970 | Chevrolet | El Camino | SS | 454/7.4 V8 |
| 1975 - 1986 | Chevrolet | C30 | 454/7.4 V8 | |
| 1988 - 1990 | Chevrolet | C3500 | 454/7.4 V8 | |
| 1973 | Chevrolet | Monte Carlo | Base | 454/7.4 V8 |
| 1973 | Chevrolet | Monte Carlo | Landau | 454/7.4 V8 |
| 1970 - 1971 | Chevrolet | Nova | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | C30 Pickup | 454/7.4 V8 | |
| 1970 - 1974 | Chevrolet | Caprice | 454/7.4 V8 | |
| 1970 | Chevrolet | Chevelle | Concours | 454/7.4 V8 |
| 1978 - 1979 | Chevrolet | C10 | Custom Deluxe | 454/7.4 V8 |
| 1978 - 1979 | Chevrolet | C10 | Scottsdale | 454/7.4 V8 |
| 1978 - 1979 | Chevrolet | C10 | Silverado | 454/7.4 V8 |
| 1978 - 1979 | Chevrolet | C10 | Big Ten | 454/7.4 V8 |
| 1975 - 1980 | Chevrolet | C10 | 454/7.4 V8 | |
| 1976 - 1978 | Chevrolet | K5 Blazer | 454/7.4 V8 | |
| 1978 - 1979 | Chevrolet | C10 | Cheyenne | 454/7.4 V8 |
| 1973 - 1974 | Chevrolet | K20 Pickup | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | K30 Pickup | 454/7.4 V8 | |
| 1970 - 1971 | Chevrolet | Kingswood | Base | 454/7.4 V8 |
| 1971 | Chevrolet | Kingswood | Estate | 454/7.4 V8 |
| 1972 | Chevrolet | Kingswood | 454/7.4 V8 | |
| 1973 - 1974 | Chevrolet | Malibu | Base | 454/7.4 V8 |
| 1973 | Chevrolet | Monte Carlo | S | 454/7.4 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 | Yes |
| 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) | 7 |
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
4.1 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Great magnet
Size: Medium 16in x 1in
Strong magnet, sturdy strap
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
★★★★★ 5
Awesome!
Size: Large 24in x 1.25in
These straps are exactly what I needed! I got them to hang my extension cords in my truck and they worked so well, I got three more to hang my water hoses in my truck also!
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Nice product with lots of uses. Strong magnet and great strap
Size: Medium 16in x 1in
Used this to replace the Klein magnetic strap on my C-800 multimeter. (This is not easy and takes a lot of manipulation, but if you can get it in the plastic loop on the multimeter up past where the loop in the strap end is sewn, you can use a screwdriver through that to yank it the rest of the way). Once it’s done it’s beautiful! This thing could hold 2 dozen multimeters and it’s MUCH longer without being too long! Otherwise it’s just an awesome strap anyway. It holds a lot of weight (I didn’t test to spec) but definitely enough for what one would expect! I have both sizes, the smaller one is attached to the multimeter and the larger holds a cord to the side of my toolbox. (Tip)- to prevent slipping just put the magnetic base on the other side of the metal by the box tray and let the strap hang over (if attached to a toolbox). It adds to the weight it can hold too. (Just physics). That will work on anything vertical and thin enough to get around with enough slack to still use the strap. 👍. Would definitely buy another
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Reviewed in the United States on August 27, 2025
★★★★★ 5
An effective organizing solution for missions involving movable equipment
Size: Medium 16in x 1in
Following the compromised operation in Prague, I was tasked with organizing equipment for the embassy annex in Vienna. The VELCRO Brand Magnetic Straps provided an essential solution for securing various tools and equipment to metal surfaces, facilitating quick access during critical moments. The durability of the strap, combined with an impressively strong magnet, ensured that our gear remained in place despite variable operational conditions.
However, the loop formed by the strap could be larger; it limited our options for certain garden hoses, which became a notable drawback. Overall, the robust quality of the straps enhances logistical efficiency in high-pressure scenarios. Katarina's earlier input on this product proved beneficial, although I detected apprehension in her demeanor while discussing its application.
Recommendation: An effective organizing solution for missions involving movable equipment, with minor adjustments needed for cord size.
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Reviewed in the United States on December 30, 2025
★★★★★ 5
Sturdy and Reliable
Size: Medium 16in x 1in
Very sturdy and holds up well with regular use. It feels solid and well-made, not flimsy or like it’s going to wear out quickly. Definitely something you can rely on without worrying about it falling apart.
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Reviewed in the United States on May 1, 2026