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Description
Hays Steel SFI Certified Flexplate - Small Block Chevrolet - 10-015Overview: Hays heavy duty flexplates for high performance and competition engines are constructed of a thicker than stock steel plate, enabling them to withstand the stress of high stall torque converters and today's high RPM engines. While factory stock plates tend to crack around the crankshaft hub when punished under high torque and RPM conditions, the thicker Hays Flexplate handles the force. These H. D. flexplates are supplied with a ring gear
Overview:
Hays heavy-duty flexplates for high performance and competition engines are constructed of a thicker than stock steel plate, enabling them to withstand the stress of high-stall torque converters and today's high-RPM engines. While factory stock plates tend to crack around the crankshaft hub when punished under high torque and RPM conditions, the thicker Hays Flexplate handles the force. These H.D. flexplates are supplied with a ring gear that is securely welded in place and feature dual bolt patterns for flexibility in adapting to multiple transmission style torque converters. All Hays heavy-duty flexplates are zinc-dichromate plated to resist corrosion and are SFI certified under specification 29.1.
Features:
- All applications for flexplates are SFI 29.1 Certified
- Available in Externally and Internally Balanced options
- Most flexplates feature Zinc Dichromate Plated finish for superior corrosion resistance and good looks
- Heavy- Duty design utilized thicker than stock steel plate enabling to withstand the stress of high-stall converters and high-RPM engines
- More applications now available for Buick, Cadillac, Chevy, Ford, Mopar, Oldsmobile and Pontiac Engine applications
- Gas and Diesel Truck applications coming soon!
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1970 - 1973 | Chevrolet | Impala | 250/4.1L l6 | |
| 1970 - 1973 | Chevrolet | Impala | 454/7.4L V8 | |
| 1970 - 1972 | Chevrolet | Impala | 402/6.6L V8 | |
| 1970 - 1971 | Chevrolet | Chevelle | 454/7.4L V8 | |
| 1970 - 1971 | Chevrolet | Chevelle | 402/6.6L V8 | |
| 1970 - 1971 | Chevrolet | Chevelle | 250/4.1L l6 | |
| 1970 - 1971 | Chevrolet | Chevelle | 307/5.0L V8 | |
| 1971 - 1973 | Chevrolet | Impala | 307/5.0L V8 | |
| 1970 - 1972 | Chevrolet | Townsman | 454/7.4L V8 | |
| 1970 - 1972 | Chevrolet | Townsman | 402/6.6L V8 | |
| 1970 - 1974 | Chevrolet | Monte Carlo | 454/7.4L V8 | |
| 1970 - 1972 | Chevrolet | Monte Carlo | 402/6.6L V8 | |
| 1970 - 1972 | Chevrolet | Kingswood | 454/7.4L V8 | |
| 1970 - 1972 | Chevrolet | Kingswood | 402/6.6L V8 | |
| 1971 - 1972 | Chevrolet | Townsman | 307/5.0L V8 | |
| 1971 - 1972 | Chevrolet | Kingswood | 307/5.0L V8 | |
| 1970 - 1972 | Chevrolet | Caprice | 454/7.4L V8 | |
| 1970 - 1972 | Chevrolet | Caprice | 402/6.6L V8 | |
| 1970 | Chevrolet | Brookwood | 454/7.4L V8 | |
| 1970 | Chevrolet | Brookwood | 402/6.6L V8 | |
| 1970 | Chevrolet | Brookwood | 250/4.1L l6 | |
| 1970 - 1972 | Chevrolet | Biscayne | 454/7.4L V8 | |
| 1970 - 1972 | Chevrolet | Biscayne | 402/6.6L V8 | |
| 1970 - 1972 | Chevrolet | Biscayne | 250/4.1L l6 | |
| 1970 - 1974 | Chevrolet | Bel Air | 454/7.4L V8 | |
| 1970 - 1972 | Chevrolet | Bel Air | 402/6.6L V8 | |
| 1970 - 1973 | Chevrolet | Bel Air | 250/4.1L l6 | |
| 1971 - 1972 | Chevrolet | Caprice | 307/5.0L V8 | |
| 1971 - 1972 | Chevrolet | Caprice | 250/4.1L l6 | |
| 1974 | Chevrolet | Malibu | 250/4.1L l6 | |
| 1974 | Chevrolet | Malibu | 454/7.4L V8 | |
| 1974 | Chevrolet | Laguna | 454/7.4L V8 | |
| 1970 - 1976 | Chevrolet | Impala | 400/6.6L V8 | |
| 1970 - 1973 | Chevrolet | Impala | 350/5.7L V8 | |
| 1970 - 1976 | Chevrolet | El Camino | 400/6.6L V8 | |
| 1970 - 1971 | Chevrolet | Chevelle | 400/6.6L V8 | |
| 1970 | Chevrolet | Chevelle | 396/6.5L V8 | |
| 1970 - 1971 | Chevrolet | Chevelle | 350/5.7L V8 | |
| 1970 - 1972 | Chevrolet | Townsman | 400/6.6L V8 | |
| 1970 - 1972 | Chevrolet | Townsman | 350/5.7L V8 | |
| 1970 - 1976 | Chevrolet | Monte Carlo | 400/6.6L V8 | |
| 1970 - 1974 | Chevrolet | Monte Carlo | 350/5.7L V8 | |
| 1970 - 1972 | Chevrolet | Kingswood | 400/6.6L V8 | |
| 1970 - 1972 | Chevrolet | Kingswood | 350/5.7L V8 | |
| 1970 - 1975 | Chevrolet | Bel Air | 400/6.6L V8 | |
| 1970 - 1976 | Chevrolet | Caprice | 400/6.6L V8 | |
| 1970 - 1972 | Chevrolet | Caprice | 350/5.7L V8 | |
| 1970 | Chevrolet | Brookwood | 400/6.6L V8 | |
| 1970 | Chevrolet | Brookwood | 350/5.7L V8 | |
| 1970 - 1972 | Chevrolet | Biscayne | 400/6.6L V8 | |
| 1970 - 1972 | Chevrolet | Biscayne | 350/5.7L V8 | |
| 1970 - 1974 | Chevrolet | Bel Air | 350/5.7L V8 | |
| 1974 - 1976 | Chevrolet | Malibu | 400/6.6L V8 | |
| 1974 | Chevrolet | Malibu | 350/5.7L V8 | |
| 1974 - 1976 | Chevrolet | Laguna | 400/6.6L V8 | |
| 1974 | Chevrolet | Laguna | 350/5.7L V8 | |
| 1974 - 1976 | GMC | Sprint | 400/6.6L V8 | |
| 1975 - 1978 | GMC | K25 Suburban | 400/6.6L V8 | |
| 1975 - 1978 | GMC | K25 | 400/6.6L V8 | |
| 1975 - 1978 | GMC | K15 Suburban | 400/6.6L V8 | |
| 1975 - 1978 | GMC | K15 | 400/6.6L V8 | |
| 1975 - 1978 | GMC | Jimmy | 400/6.6L V8 | |
| 1975 - 1978 | GMC | G35 | 400/6.6L V8 | |
| 1975 - 1978 | GMC | G25 | 400/6.6L V8 | |
| 1976 | GMC | G15 | 400/6.6L V8 | |
| 1976 - 1978 | GMC | C35 | 400/6.6L V8 | |
| 1976 - 1978 | GMC | C25 | 400/6.6L V8 | |
| 1976 - 1978 | GMC | C15 | 400/6.6L V8 | |
| 1976 - 1978 | Chevrolet | K5 Blazer | 400/6.6L V8 | |
| 1975 - 1978 | Chevrolet | K20 Suburban | 400/6.6L V8 | |
| 1975 - 1978 | Chevrolet | K20 | 400/6.6L V8 | |
| 1975 - 1977 | Chevrolet | K10 Suburban | 400/6.6L V8 | |
| 1975 - 1978 | Chevrolet | K10 | 400/6.6L V8 | |
| 1975 - 1978 | Chevrolet | G30 | 400/6.6L V8 | |
| 1975 - 1980 | Chevrolet | G20 | 400/6.6L V8 | |
| 1976 - 1978 | Chevrolet | C30 | 400/6.6L V8 | |
| 1976 - 1978 | Chevrolet | C20 Suburban | 400/6.6L V8 | |
| 1976 - 1978 | Chevrolet | C20 | 400/6.6L V8 | |
| 1976 - 1978 | Chevrolet | C10 | 400/6.6L V8 | |
| 1977 - 1978 | GMC | K35 | 400/6.6L V8 | |
| 1977 - 1978 | Chevrolet | K30 | 400/6.6L V8 | |
| 1978 | GMC | C25 Suburban | 400/6.6L V8 |
Specs:
| # of Teeth | 168 |
|---|---|
| Application | 1970-80 Small Block Chevy 383/400 |
| Brand | Hays |
| Center Bore (Register Diameter) | 2.490" |
| Emission Code | 5 |
| Engine Balance | External |
| Material | Steel |
| Product Type | Flexplates |
| SFI Approved | Yes |
| SFI Certification | 29.1 |
| Warranty | 90 Day |
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
4.8 ★★★★★
Based on 2410 reviews
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Product Reviews
★★★★★ 5
Game changer for hot drinks
Color: Black
This coffee mug warmer works great and keeps my coffee at the perfect temperature without overheating. Love the choice in temperatures feature. It’s simple to use, heats quickly, and fits my mugs well. A great upgrade for enjoying hot coffee longer at my work desk.
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Reviewed in the United States on January 4, 2026
★★★★★ 5
THE ABSOLUTE BEST MUG WARMER! WORKS PERFECTLY!
Color: Black
This is the best mug warmer I've ever had! It's sleek, keeps drink hot or even warm if that's what you prefer. I bought two, my niece liked mine so much she got one, and I'm getting one for my guest who comes to my house.
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Reviewed in the United States on December 24, 2025
★★★★★ 4
YEOSEN 3 Temperature Mug Warmer
Color: Black
Wow! There really are warmer mug warmers than lukewarm! This is one of them. Who wants lukewarm coffee? The YEOSEN 3 Temperature Mug Warmer on the MEDIUM temperature setting keeps my coffee HOT enough. Not lukewarm, or barely warm (even at the bottom of the cup). In fact, I use the lower temp. settings, while the level of liquid goes down. The lowest temperature is HOT enough ...not lukewarm. It's not burning, but HOT.
I bought it because the reviews said it kept the coffee much warmer than lukewarm. And it does.
The point is, when I walk away from my desk for 15 minutes, the temperature of my coffee is still satisfyingly hot. After all, what is lukewarm? It's a few degrees above normal body temperature! 137 is hotter than that!
The unit automatically shuts off (the Off-On button is on the bottom of the unit positioned under the hot plate and the weight of the cup pushes the button to turn it on), when you pick up the cup it shuts off.
I don't like the auto shut off button on the bottom of the unit. It shuts off and on every time you take a drink. Lift the cup up and it shuts off, set it back down and it turns back on. Wish you could shut that feature off. A piece of tape? but unplugging it from the wall is inconvenient. Maybe, because it's so much warmer than lukewarm, it needs some kind of safety feature.
But, all in all, I would definitely buy another one.
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Reviewed in the United States on March 19, 2020
★★★★★ 5
BEST mug warmer
Color: Black
This is the best of the many mug warmers available online. It has 3 temperatures. I use the highest - 167 degrees. I like my coffee HOT. With this warmer I don’t have to return to the microwave as often to reheat my coffee. It is very easy to use- takes large mugs as well as regular sized cups. I have looked everywhere for a “flat bottomed” mug . All the mugs I have found have a rim on the bottom which prevents complete contact with the warmer. However the warmer works with the “bottom rimed “ mugs. I use my warmer for the end table by my recliner. I am considering purchasing a second warmer for my desktop. I definitely recommend this as the BEST mug warmer. I have been using it many hours daily for over a month as I am retired. It works fine. I did just purchase a second one. It came the day after I ordered it. Now I can enjoy a hot beverage by my recliner or on my desktop. I purchased a silicone cover/lid for my mug. This really keeps my beverage hot. However when you remove the lid the condensation on the underside of the lid drips. I keep a paper towel/napkin close by to catch the condensation.
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Reviewed in the United States on February 23, 2021
★★★★★ 5
Warming Up to My New Mug Warmer
Color: Black
I keep mine next to my computer monitor so I always have that quick caffeine jolt nearby. The three temperature settings are convenient and the LED readouts ensure your brew is as hot as you want it to be. Not sure about reviews saying this warmer makes drinks lukewarm because it doesn't. In fact, it can be used to reheat drinks in just a few minutes. I also like that it's a 120v plug-in and it's not the weak, slow, and temperamental USB powered one. One tip: The on-off switch is on the underside of the warmer. It must be depressed for it to power on. If the red LED doesn't indicate the temperature, then the warmer is not on (or the button is broken). You don't have to turn the unit over either to press the power button, just press down on your mug until the temperature LED turns on. The other hint is that this warmer can get very hot very quickly. While the edges stay cool to the touch, never touch the outlined hotplate area or you might get burned. Wait for it too cool down or use a pair of oven mitts---it's that hot.
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Reviewed in the United States on March 27, 2023