Pay in installments of $76.37 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Hays 10-235 Externally Balanced Flywheel, 168 Tooth, BBC 454Overview: Hays steel flywheels are manufactured from certified billet material that will not break up under the stress of high RPM and severe punishment of racing. The 30 pound flywheel fits the 454 Chevy with 2 piece rear main seal and has 168 tooth ring gear. The flywheel is drilled for 10. 5 in Borg & Beck or diaphragm and 11 in Borg & Beck, diaphragm or long style pressure plates. S. F. I. 1. 1 certified. External engine balance. Other weights and
Overview:
Hays steel flywheels are manufactured from certified billet material that will not break up under the stress of high RPM and severe punishment of racing. The 30 pound flywheel fits the 454 Chevy with 2 piece rear main seal and has 168 tooth ring gear. The flywheel is drilled for 10.5 in Borg & Beck or diaphragm and 11 in Borg & Beck, diaphragm or long style pressure plates. S.F.I. 1.1 certified. External engine balance. Other weights and applications available.
Features:
- Billet Steel
- S.F.I. 1.1 Certified
- 10.5 In Borg And Beck Or Diaphragm
- 11 In Borg And Beck Diaphragm Or Long Style
- Weight 31 Pounds
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1973 - 1975 | Chevrolet | Monte Carlo | S | 454/7.4L V8 |
| 1974 | Chevrolet | Laguna | Type S-3 | 454/7.4L V8 |
| 1970 - 1974 | Chevrolet | Monte Carlo | Base | 454/7.4L V8 |
| 1970 - 1972 | Chevrolet | Chevelle | SS | 454/7.4L V8 |
| 1970 - 1972 | Chevrolet | Chevelle | Greenbrier | 454/7.4L V8 |
| 1970 - 1972 | Chevrolet | Chevelle | Malibu | 454/7.4L V8 |
| 1973 - 1974 | Chevrolet | Malibu | Base | 454/7.4L V8 |
| 1974 - 1975 | Chevrolet | Malibu | Classic | 454/7.4L V8 |
| 1970 - 1972 | Chevrolet | Chevelle | Concours | 454/7.4L V8 |
| 1970 - 1972 | Chevrolet | Chevelle | Base | 454/7.4L V8 |
| 1973 - 1975 | Chevrolet | Laguna | Base | 454/7.4L V8 |
| 1970 - 1976 | Chevrolet | Impala | Base | 454/7.4L V8 |
| 1973 | Chevrolet | Chevelle | Deluxe | 454/7.4L V8 |
| 1970 - 1972 | Chevrolet | Caprice | Base | 454/7.4L V8 |
| 1970 - 1975 | Chevrolet | Bel Air | Base | 454/7.4L V8 |
| 1970 - 1972 | Chevrolet | Kingswood | Base | 454/7.4L V8 |
| 1970 - 1975 | Chevrolet | El Camino | Base | 454/7.4L V8 |
| 1970 - 1974 | Chevrolet | El Camino | Custom | 454/7.4L V8 |
| 1970 - 1974 | Chevrolet | El Camino | SS | 454/7.4L V8 |
| 1970 - 1972 | Chevrolet | Chevelle | Concours Estate | 454/7.4L V8 |
| 1973 - 1974 | Chevrolet | Malibu | Estate | 454/7.4L V8 |
| 1970 - 1972 | Chevrolet | Townsman | Base | 454/7.4L V8 |
| 1970 - 1974 | Chevrolet | Corvette | Base | 454/7.4L V8 |
| 1973 - 1974 | Chevrolet | K20 Pickup | Base | 454/7.4L V8 |
| 1973 - 1976 | Chevrolet | Caprice | Classic | 454/7.4L V8 |
| 1973 - 1974 | Chevrolet | Caprice | Estate | 454/7.4L V8 |
| 1973 - 1974 | Chevrolet | Monte Carlo | Landau | 454/7.4L V8 |
| 1973 - 1974 | Chevrolet | C30 Pickup | Base | 454/7.4L V8 |
| 1971 - 1972 | Chevrolet | Biscayne | Base | 454/7.4L V8 |
| 1973 | Chevrolet | Laguna | Estate | 454/7.4L V8 |
| 1970 - 1972 | Chevrolet | Chevelle | Nomad | 454/7.4L V8 |
| 1970 - 1972 | Chevrolet | Kingswood | Estate | 454/7.4L V8 |
| 1973 - 1974 | Chevrolet | C20 Pickup | Base | 454/7.4L V8 |
| 1973 - 1974 | Chevrolet | C10 Pickup | Base | 454/7.4L V8 |
| 1974 | Chevrolet | K10 Pickup | Base | 454/7.4L V8 |
| 1973 - 1974 | Chevrolet | K30 Pickup | Base | 454/7.4L V8 |
| 1975 - 1981 | Chevrolet | C30 | Cheyenne | 454/7.4L V8 |
| 1989 - 1990 | Chevrolet | R3500 | Silverado | 454/7.4L V8 |
| 1988 | Chevrolet | V30 | Cheyenne | 454/7.4L V8 |
| 1977 - 1986 | Chevrolet | K30 | Silverado | 454/7.4L V8 |
| 1975 - 1980 | Chevrolet | C20 | Custom Deluxe | 454/7.4L V8 |
| 1975 - 1981 | Chevrolet | C20 | Cheyenne | 454/7.4L V8 |
| 1975 - 1986 | Chevrolet | C20 | Scottsdale | 454/7.4L V8 |
| 1975 - 1986 | Chevrolet | C20 | Silverado | 454/7.4L V8 |
| 1988 - 1990 | Chevrolet | K3500 | Cheyenne | 454/7.4L V8 |
| 1977 - 1986 | Chevrolet | K30 | Scottsdale | 454/7.4L V8 |
| 1981 - 1986 | Chevrolet | C20 | Custom | 454/7.4L V8 |
| 1987 - 1988 | Chevrolet | R20 | Silverado | 454/7.4L V8 |
| 1988 | Chevrolet | R30 | Cheyenne | 454/7.4L V8 |
| 1989 | Chevrolet | R2500 | Scottsdale | 454/7.4L V8 |
| 1987 - 1988 | Chevrolet | R30 | Silverado | 454/7.4L V8 |
| 1987 - 1988 | Chevrolet | R30 | Scottsdale | 454/7.4L V8 |
| 1989 - 1990 | Chevrolet | R3500 | Scottsdale | 454/7.4L V8 |
| 1989 - 1990 | Chevrolet | R3500 | Cheyenne | 454/7.4L V8 |
| 1987 - 1988 | Chevrolet | R30 | Custom Deluxe | 454/7.4L V8 |
| 1976 | Chevrolet | Impala | S | 454/7.4L V8 |
| 1975 - 1986 | Chevrolet | C30 | Scottsdale | 454/7.4L V8 |
| 1976 | Chevrolet | Caprice | Classic Landau | 454/7.4L V8 |
| 1975 - 1976 | Chevrolet | Impala | Sport | 454/7.4L V8 |
| 1975 - 1980 | Chevrolet | C30 | Custom Deluxe | 454/7.4L V8 |
| 1981 | Chevrolet | C30 | Deluxe | 454/7.4L V8 |
| 1981 - 1986 | Chevrolet | C30 | Custom | 454/7.4L V8 |
| 1975 - 1980 | Chevrolet | C10 | Cheyenne | 454/7.4L V8 |
| 1975 - 1980 | Chevrolet | C10 | Silverado | 454/7.4L V8 |
| 1975 - 1980 | Chevrolet | C10 | Scottsdale | 454/7.4L V8 |
| 1975 - 1980 | Chevrolet | C10 | Custom Deluxe | 454/7.4L V8 |
| 1975 - 1986 | Chevrolet | C30 | Silverado | 454/7.4L V8 |
| 1988 - 1990 | Chevrolet | C3500 | Cheyenne | 454/7.4L V8 |
| 1976 - 1980 | Chevrolet | K10 | Cheyenne | 454/7.4L V8 |
| 1976 - 1978 | Chevrolet | K20 | Custom Deluxe | 454/7.4L V8 |
| 1976 - 1978 | Chevrolet | K20 | Scottsdale | 454/7.4L V8 |
| 1988 - 1990 | Chevrolet | C3500 | Scottsdale | 454/7.4L V8 |
| 1988 - 1990 | Chevrolet | C3500 | Silverado | 454/7.4L V8 |
| 1981 - 1986 | Chevrolet | K30 | Custom | 454/7.4L V8 |
| 1976 - 1978 | Chevrolet | K20 | Silverado | 454/7.4L V8 |
| 1977 - 1981 | Chevrolet | K30 | Cheyenne | 454/7.4L V8 |
| 1981 | Chevrolet | C20 | Deluxe | 454/7.4L V8 |
| 1977 - 1980 | Chevrolet | K30 | Custom Deluxe | 454/7.4L V8 |
| 1975 | Chevrolet | Caprice | Estate Wagon | 454/7.4L V8 |
| 1976 | Chevrolet | Caprice | Classic Estate | 454/7.4L V8 |
| 1976 - 1980 | Chevrolet | K10 | Custom Deluxe | 454/7.4L V8 |
| 1987 - 1988 | Chevrolet | V30 | Silverado | 454/7.4L V8 |
| 1989 - 1990 | Chevrolet | V3500 | Scottsdale | 454/7.4L V8 |
| 1989 - 1990 | Chevrolet | V3500 | Silverado | 454/7.4L V8 |
| 1987 - 1988 | Chevrolet | V30 | Scottsdale | 454/7.4L V8 |
| 1987 - 1988 | Chevrolet | R20 | Custom Deluxe | 454/7.4L V8 |
| 1987 - 1988 | Chevrolet | V30 | Custom Deluxe | 454/7.4L V8 |
| 1981 | Chevrolet | K30 | Deluxe | 454/7.4L V8 |
| 1989 - 1990 | Chevrolet | V3500 | Cheyenne | 454/7.4L V8 |
| 1975 - 1976 | Chevrolet | Caprice | Classic Sport | 454/7.4L V8 |
| 1988 - 1990 | Chevrolet | K3500 | Scottsdale | 454/7.4L V8 |
| 1988 - 1990 | Chevrolet | K3500 | Silverado | 454/7.4L V8 |
| 1987 - 1988 | Chevrolet | R20 | Scottsdale | 454/7.4L V8 |
| 1989 | Chevrolet | R2500 | Cheyenne | 454/7.4L V8 |
| 1975 - 1976 | Chevrolet | Impala | Custom | 454/7.4L V8 |
| 1990 | Chevrolet | C1500 | WT | 454/7.4L V8 |
| 1990 | Chevrolet | C1500 | Scottsdale | 454/7.4L V8 |
| 1976 - 1980 | Chevrolet | K10 | Scottsdale | 454/7.4L V8 |
| 1976 - 1978 | Chevrolet | K20 | Cheyenne | 454/7.4L V8 |
| 1978 - 1980 | Chevrolet | C10 | Big Ten | 454/7.4L V8 |
| 1990 | Chevrolet | C1500 | 454 SS | 454/7.4L V8 |
| 1990 | Chevrolet | C1500 | Cheyenne | 454/7.4L V8 |
| 1976 - 1980 | Chevrolet | K10 | Silverado | 454/7.4L V8 |
| 1989 | Chevrolet | R2500 | Silverado | 454/7.4L V8 |
| 1988 | Chevrolet | R20 | Cheyenne | 454/7.4L V8 |
| 1976 | Chevrolet | Impala | Custom Landau | 454/7.4L V8 |
| 1990 | Chevrolet | C1500 | Silverado | 454/7.4L V8 |
| 1975 | Chevrolet | Laguna | S3 | 454/7.4L V8 |
Specs:
| # of Teeth | 168 |
|---|---|
| Application | Chevrolet |
| Brand | Hays |
| Emission Code | 5 |
| Engine | Big Block Chevy |
| Engine Balance | External |
| Material | Steel |
| Product Type | Flywheels |
| SFI Approved | Yes |
| SFI Certification | 1.1 |
| Warranty | Limited 90 Day Warranty |
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
4.3 ★★★★★
Based on 7 reviews
Sort
Product Reviews
★★★★★ 4
Make sure you size up!!
Size: 4X-Large, Color: B004
Allllllmost 5 stars if the sizing was correct. I’ve been on the hunt for a decent fitting pair of women’s boxer briefs. I would say these are more so boyshorts. That being said, I wanted something loose for sleeping in so I got TWO sizes up. I normally go for a 2x and got a 4x and they’re perfect fitting. So, you didn’t get what I was looking for but did end up with some decent fitting undies. So I can’t complain too much. Just not the boxer briefs I was hoping for. Super stretchy and soft. Comfortable for sleeping in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026
★★★★★ 5
Really comfortable, good fit
Size: 6X-Large, Color: 5 Pack(black,black,blue,blue,light Coffee)
These are very lightweight and comfortable. The material stretches freely and doesn't bind up anywhere. If you go by the size guide, they should fit perfectly neither too loose nor too tight. Would definitely recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
★★★★★ 3
These don't work for me...
Size: Medium, Color: B005
First the good... I like the material; it's very soft, light, and stretchy. I also like the colors, but that's all I like about these boyshort panties. My main goal for panties is to have them NOT ride up into my butt crack leaving the bottoms of my butt hanging out. It's probably comfortable for some, but it drives me nuts to feel this constant need to pull them out of my butt crack and down over my butt cheeks. If I wanted my butt hanging out I'd buy thongs, LOL. The part I really don't understand, is why they make the front and the back the same width/length. I mean clearly more material would be needed in the back to fit around two round humps, right? I mean I guess unless you have what I call a pancake butt, I don't see why there shouldn't be more material on the backside of the underwear. Why is it so dang difficult to find underwear in this style to fit up over butt cheeks? If I pull them down enough to cover the bottoms of my cheeks then the waistband is sitting right at the top of my crack which is extremely annoying (then I feel this constant need to pull them up!) especially when the front is long enough to go up to my belly button!! Who are they making these underwear for??? Ladies with FLAT butts apparently. For reference, I'm 5'5" 130 lbs, hips 37", waist 27", athletic build, as in lean but with muscular glutes & quads from speed skating. Not only are they not made big enough to go up over my rump while still keeping my cheek bottoms from hanging out, but they're too long in the front cause they constantly roll up in the front. I've even tried turning them around, even though they seem to be exactly the same front to back, and they fit exactly the same, no surprise there. I may just be out of luck finding comfy boyshort panties that actually fit the way I want them to. :/
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 15, 2025
★★★★★ 5
Super comfy!
Great colors, super comfy, soft and druable!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
★★★★★ 5
Comfy and well made
Size: Large, Color: B2207sp
Love these! They stay in place, are soft and comfortable with just enough stretch but hold their shape. This is my 3rd order.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026