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Description
Hays Twister 3/4 Race Torque Converter, Ford C4 Case-Filled - 97-2E24QOverview: Hays Performance Drivetrain is proud to announce Twister 3 4 Race Performance Torque Converters. These NEW torque converters are a perfect addition to Hays product line of performance flexplates, clutches, and flywheels. The 3 4 Race torque converter is the first series being brought to market and is intended for street strip combinations, with various RPM stall speed offerings to accommodate any mixture of modifications including higher
Overview:
Hays Performance Drivetrain is proud to announce Twister 3/4 Race Performance Torque Converters. These NEW torque converters are a perfect addition to Hays product line of performance flexplates, clutches, and flywheels. The 3/4 Race torque converter is the first series being brought to market and is intended for street/strip combinations, with various RPM stall speed offerings to accommodate any mixture of modifications including higher compression ratios, aftermarket camshafts, aftermarket cylinder heads, lower gear ratios, and vehicle weight loss.
The name 3/4 Race perfectly describes a torque converter suited for an application just shy of a Full Race version. We do plan to offer Full Race torque converters in the near future.
Good names never go away, and neither should good terms!
Hays Twister 3/4 Race Torque Converters!
Features:
- 3/4 Race series converters are built, tested, and proven to support up to 650 HP
- State of the art Spray Welding process is used in select areas. Spray Welding provides clean, strong and consistent fusion while also increasing strength through hardening from higher process temperature
- Each converter is hand-built and inspected in every step of assembly to ensure top of the line quality
- All HAYS converters are internally welded compared to brazing. Testing has shown welding provides longer converter life while also enhancing consistency
- Heavy duty Torrington bearings are used for greater strength and durability
- Stators are chosen with high flow vents and channels to promote cooling in heat producing higher horsepower applications
- Increased horsepower and acceleration due to a weight saving, one application design. Almost all HAYS converters are built for one application to reduce weight compared to a multi-bolt pattern converter.
- 3/4 Race series converters are offered in several different stall speeds for GM, Ford, and Chrysler transmissions
- Industry leading Tech Support Team is available to provide assistance with stall speed selection
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1977 - 1979 | Mercury | Cougar | 351/5.8L V8 | |
| 1977 | Lincoln | Versailles | 351/5.8L V8 | |
| 1977 - 1979 | Ford | Thunderbird | 351/5.8L V8 | |
| 1977 - 1979 | Ford | Ranchero | 351/5.8L V8 | |
| 1977 - 1979 | Ford | LTD II | 351/5.8L V8 | |
| 1977 - 1980 | Ford | LTD | 351/5.8L V8 | |
| 1977 | Ford | Granada | 351/5.8L V8 | |
| 1977 | Ford | F-350 | 351/5.8L V8 | |
| 1977 | Ford | F-350 | 300/4.9L l6 | |
| 1977 | Ford | F-250 | 351/5.8L V8 | |
| 1977 | Ford | F-250 | 300/4.9L l6 | |
| 1977 | Mercury | Monarch | 351/5.8L V8 | |
| 1978 | Ford | F-150 | 351/5.8L V8 | |
| 1978 | Ford | F-150 | 300/4.9L l6 | |
| 1978 | Ford | F-100 | 351/5.8L V8 | |
| 1978 - 1981 | Ford | F-100 | 300/4.9L l6 | |
| 1980 | Mercury | Marquis | 351/5.8L V8 | |
| 1980 | Mercury | Grand Marquis | 351/5.8L V8 | |
| 1977 - 1978 | Mercury | Cougar | 400/6.6L V8 | |
| 1977 - 1981 | Mercury | Cougar | 302/5.0L V8 | |
| 1977 | Mercury | Comet | 302/5.0L V8 | |
| 1977 | Mercury | Comet | 250/4.1L l6 | |
| 1977 | Mercury | Comet | 200/3.3L l6 | |
| 1977 - 1979 | Mercury | Capri | 171/2.8L V6 | |
| 1977 - 1981 | Mercury | Capri | 140/2.3L l4 | |
| 1977 - 1979 | Mercury | Bobcat | 171/2.8L V6 | |
| 1977 - 1980 | Mercury | Bobcat | 140/2.3L l4 | |
| 1977 - 1980 | Lincoln | Versailles | 302/5.0L V8 | |
| 1977 - 1978 | Ford | Thunderbird | 400/6.6L V8 | |
| 1977 - 1981 | Ford | Thunderbird | 302/5.0L V8 | |
| 1977 - 1978 | Ford | Ranchero | 400/6.6L V8 | |
| 1977 - 1979 | Ford | Ranchero | 302/5.0L V8 | |
| 1977 | Ford | Ranchero | 460/7.5L V8 | |
| 1977 - 1979 | Ford | Pinto | 171/2.8L V6 | |
| 1977 - 1980 | Ford | Pinto | 140/2.3L l4 | |
| 1977 - 1978 | Ford | Mustang II | 302/5.0L V8 | |
| 1977 - 1978 | Ford | Mustang II | 171/2.8L V6 | |
| 1977 - 1978 | Ford | Mustang II | 140/2.3L l4 | |
| 1977 | Ford | Maverick | 302/5.0L V8 | |
| 1977 | Ford | Maverick | 250/4.1L l6 | |
| 1977 | Ford | Maverick | 200/3.3L l6 | |
| 1977 - 1978 | Ford | LTD II | 400/6.6L V8 | |
| 1977 - 1979 | Ford | LTD II | 302/5.0L V8 | |
| 1977 - 1978 | Ford | LTD | 460/7.5L V8 | |
| 1977 - 1978 | Ford | LTD | 400/6.6L V8 | |
| 1977 - 1980 | Ford | LTD | 302/5.0L V8 | |
| 1977 - 1980 | Ford | Granada | 302/5.0L V8 | |
| 1977 - 1980 | Ford | Granada | 250/4.1L l6 | |
| 1977 - 1981 | Ford | Granada | 200/3.3L l6 | |
| 1977 | Ford | F-350 | 460/7.5L V8 | |
| 1977 | Ford | F-350 | 400/6.6L V8 | |
| 1977 | Ford | F-350 | 302/5.0L V8 | |
| 1977 | Ford | F-250 | 460/7.5L V8 | |
| 1977 | Ford | F-250 | 400/6.6L V8 | |
| 1977 | Ford | F-250 | 302/5.0L V8 | |
| 1978 - 1979 | Mercury | Zephyr | 302/5.0L V8 | |
| 1978 - 1981 | Mercury | Zephyr | 200/3.3L l6 | |
| 1978 - 1981 | Mercury | Zephyr | 140/2.3L l4 | |
| 1977 - 1980 | Mercury | Monarch | 302/5.0L V8 | |
| 1977 - 1980 | Mercury | Monarch | 250/4.1L l6 | |
| 1977 | Mercury | Monarch | 200/3.3L l6 | |
| 1978 | Ford | F-150 | 400/6.6L V8 | |
| 1978 | Ford | F-150 | 302/5.0L V8 | |
| 1978 | Ford | F-150 | 460/7.5L V8 | |
| 1978 | Ford | F-100 | 400/6.6L V8 | |
| 1978 - 1981 | Ford | F-100 | 302/5.0L V8 | |
| 1979 | Mercury | Capri | 302/5.0L V8 | |
| 1979 - 1981 | Mercury | Capri | 200/3.3L l6 | |
| 1978 - 1979 | Ford | Fairmont | 302/5.0L V8 | |
| 1978 - 1981 | Ford | Fairmont | 200/3.3L l6 | |
| 1978 - 1981 | Ford | Fairmont | 140/2.3L l4 | |
| 1980 - 1981 | Mercury | Zephyr | 255/4.2L V8 | |
| 1980 | Mercury | Monarch | 255/4.2L V8 | |
| 1980 | Mercury | Marquis | 302/5.0L V8 | |
| 1980 | Mercury | Grand Marquis | 302/5.0L V8 | |
| 1980 - 1981 | Mercury | Cougar | 255/4.2L V8 | |
| 1980 - 1981 | Mercury | Cougar | 200/3.3L l6 | |
| 1980 - 1981 | Mercury | Capri | 255/4.2L V8 | |
| 1980 - 1981 | Ford | Thunderbird | 255/4.2L V8 | |
| 1980 - 1981 | Ford | Thunderbird | 200/3.3L l6 | |
| 1980 - 1981 | Ford | Mustang | 255/4.2L V8 | |
| 1979 - 1981 | Ford | Mustang | 200/3.3L l6 | |
| 1979 - 1981 | Ford | Mustang | 140/2.3L l4 | |
| 1980 - 1981 | Ford | Granada | 255/4.2L V8 | |
| 1980 - 1981 | Ford | Fairmont | 255/4.2L V8 | |
| 1979 | Ford | Mustang | 302/5.0L V8 | |
| 1979 | Ford | Mustang | 171/2.8L V6 | |
| 1981 | Mercury | Cougar | 140/2.3L l4 | |
| 1981 | Ford | Granada | 140/2.3L l4 | |
| 1981 | Ford | F-100 | 255/4.2L V8 |
Specs:
| Anti-Balloon Plate | No |
|---|---|
| Balanced | Yes |
| Bolt Circle | 10-1/2"" |
| Brand | Hays |
| Crank Pilot Diameter | 1.375"" |
| Diameter | 10"" |
| Emission Code | 5 |
| Input Spline | 26 |
| Lock Up/Overdrive | No |
| Product Type | Automatic Transmission Torque Converter |
| Series | 3/4 Race |
| Stall | 2400-2800 |
| Transmission | C4 Case-Filled |
| Use with Power Adder | No |
| Use with Trans-Brake | No |
| Warning | California Proposition 65 |
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 1054 reviews
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Product Reviews
★★★★★ 5
ABSOLUTELY A MUST for Omegaverse Girls!!!
I ABSOLUTELY LOVE Jillian West and her books!!! I’m so happy I already bought book two and now I have to buy the others for the Assurance Security series!!
Not gonna lie Val kind of annoyed me at the beginning but she grew on me!! Her men are chef’s kisses!!! Holt annoys me some but I can let it slide. I already bought part two so I’m going to be reading that in between work phone calls!!!! DON’T TELL MY BOSS 😂😂😂😂
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 30, 2025
★★★★★ 4
Baby bumps and bodyguards
Format: Kindle
Dark, emotional, and unexpectedly tender, Not Ready is an omegaverse romance that delivers found family feels, fierce protectiveness, and a very pregnant heroine who refuses to break. Vale’s on the run from a stalker, but lands in the arms of three private security alphas, cue the swoony tension, fake marriage twist, and slow-burn heat.
It’s a little gritty, a little soft, and a whole lot addictive. If you love protective alphas, high stakes, and heroines with quiet strength, this one’s a must-read.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
★★★★★ 5
Strong Omegaverse Comfort and a Attention Grabbing Plot
Format: Kindle
Jillian West never misses when it comes to Omegaverse, and Not Ready is no exception. This story was the perfect blend of cozy comfort and emotional depth while still delivering a strong plot.
Vale is such a powerful heroine, she is strong, capable, and determined but I love that she still allows her pack to love and take care of her. It’s that balance of independence and vulnerability that makes her so relatable.
The relationship dynamics were amazing: Bishop is steadfast and completely head over heels, Mercy is skeptical but protective in his own way, and Holt is the hesitant one whose slow fall is so satisfying to watch unfold.
The romance hits that sweet spot between insta-love and cautious build, keeping me hooked the entire way through. And that ending. Oh my god, the cliffhanger! I need the next book in this duet immediately.
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Reviewed in the United States on August 28, 2025
★★★★★ 5
Interesting
Format: Kindle
So I will say I enjoyed the story, for sure had its moments where it dragged but it was a great story. I really liked that omegas picked their alphas/make the pack. Normally the Alphas make it and the omega fits in with them which is great but I enjoyed this new version where all the power basically went to the omega. It was a nice change of pace. I can admit some of the weird bedroom stuff with her being pregnant was odd, it’s really not hard to do stuff when pregnant (I know I’ve had two and it’s normal and even encouraged at the end especially if you want the baby out). But I like the story as a whole and will read the second, I do hope the next one isn’t dragged bc it stopped being action or tense after she met her alphas and I don’t think it was brought up or properly done when they tried to do it. More sweet after she left.
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Reviewed in the United States on November 11, 2024
★★★★★ 3
I’m a little disappointed.
Format: Kindle
I usually like Jillian West’s books but this one was missing a lot for me. The pregnancy didn’t come across as real. She’s on her feet for 12 hour days but is perfectly healthy at 8 months pregnant? Yet the week she moves in all of a sudden she’s not? She is planning on actually running during one of the plot buildups. But at 8 months pregnant that’s incredibly hard to do. The lack of breathing ability and lung space, the change in body center, mass, and gravity. All of it prohibits running, unless you’re an athlete this didn’t come off as at all realistic.
I didn’t feel any connection with the alphas. There wasn’t any emotional connection. It could be because of the tense it was written in. But I didn’t get any deep feelings out of this. It came across as checking off boxes. Even the spicy scenes weren’t really believable for me. I wanted to see them fall for her, and it just kind of all fizzled. Even Bishop.
One thing I did really like was the ending. I did not see it coming and I’m interested in reading book two because of it. But on the whole this book was mostly disappointing for me.
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Reviewed in the United States on March 16, 2024