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Description
Hays Billet Steel SFI Certified Flywheel - Big Block Ford - 12-240Overview: 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. All Hays flywheels are certified S. F. I. spec 1. 1. This flywheel fits the big block internal balanced 352, 390, 427, 428, 429, 460 CID Ford for 1965 through 1972. This is a 184 tooth flywheel that weighs 40 lbs. Requires an 11 in Borg Beck Long or Mark XII clutches. This flywheel is
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. All Hays flywheels are certified S.F.I. spec 1.1. This flywheel fits the big block internal balanced 352, 390, 427, 428, 429, 460 CID Ford for 1965 through 1972. This is a 184 tooth flywheel that weighs 40 lbs. Requires an 11 in Borg-Beck Long or Mark XII clutches. This flywheel is thicker than stock and may require a bellhousing spacing or a Lakewood bellhousing to eliminate interference. Flywheel bolts included. Other applications available.
Features:
- Fits BB Ford With Internal Balance
- 184 Tooth Flywheel
- Weighs 40 Lbs
- Requires 11 In Bbl Or Mark Xii Clutches
- Thicker Than Stock
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| 1970 | Mercury | Marquis | 390/6.4L V8 | |
| 1970 - 1973 | Mercury | Marquis | 429/7.0L V8 | |
| 1970 - 1973 | Mercury | Monterey | 429/7.0L V8 | |
| 1971 - 1974 | Mercury | Monterey | 400/6.6L V8 | |
| 1971 - 1978 | Mercury | Marquis | 400/6.6L V8 | |
| 1971 - 1973 | Mercury | Colony Park | 429/7.0L V8 | |
| 1971 - 1974 | Mercury | Colony Park | 400/6.6L V8 | |
| 1971 | Lincoln | Mark III | 460/7.5L V8 | |
| 1971 - 1978 | Lincoln | Continental | 460/7.5L V8 | |
| 1971 - 1973 | Ford | Thunderbird | 429/7.0L V8 | |
| 1971 - 1978 | Ford | Thunderbird | 400/6.6L V8 | |
| 1971 | Ford | M-400 | 390/6.4L V8 | |
| 1971 - 1978 | Ford | LTD | 400/6.6L V8 | |
| 1971 | Ford | LTD | 390/6.4L V8 | |
| 1971 - 1973 | Ford | LTD | 429/7.0L V8 | |
| 1971 - 1972 | Ford | F-350 | 390/6.4L V8 | |
| 1971 - 1972 | Ford | F-250 | 390/6.4L V8 | |
| 1971 - 1972 | Ford | F-100 | 390/6.4L V8 | |
| 1971 - 1973 | Ford | Country Sedan | 429/7.0L V8 | |
| 1971 - 1974 | Ford | Country Sedan | 400/6.6L V8 | |
| 1971 | Ford | Country Sedan | 390/6.4L V8 | |
| 1972 - 1974 | Mercury | Monterey | 460/7.5L V8 | |
| 1972 - 1978 | Mercury | Marquis | 460/7.5L V8 | |
| 1970 | Mercury | Monterey | 390/6.4L V8 | |
| 1972 - 1974 | Mercury | Colony Park | 460/7.5L V8 | |
| 1972 - 1976 | Lincoln | Mark IV | 460/7.5L V8 | |
| 1972 - 1976 | Ford | Thunderbird | 460/7.5L V8 | |
| 1972 - 1978 | Ford | LTD | 460/7.5L V8 | |
| 1972 - 1974 | Ford | Country Sedan | 460/7.5L V8 | |
| 1973 - 1997 | Ford | F-350 | 460/7.5L V8 | |
| 1973 - 1996 | Ford | F-250 | 460/7.5L V8 | |
| 1973 - 1979 | Ford | F-100 | 460/7.5L V8 | |
| 1975 - 1976 | Mercury | Montego | 460/7.5L V8 | |
| 1975 - 1976 | Mercury | Montego | 400/6.6L V8 | |
| 1975 - 1979 | Ford | F-150 | 460/7.5L V8 | |
| 1975 - 1976 | Ford | Elite | 460/7.5L V8 | |
| 1975 - 1976 | Ford | Elite | 400/6.6L V8 | |
| 1975 - 1996 | Ford | E-350 Econoline | 460/7.5L V8 | |
| 1975 - 1991 | Ford | E-250 Econoline Club Wagon | 460/7.5L V8 | |
| 1975 - 1980 | Ford | E-250 Econoline | 460/7.5L V8 | |
| 1975 - 1977 | Ford | Custom 500 | 400/6.6L V8 | |
| 1975 - 1976 | Ford | Custom 500 | 460/7.5L V8 | |
| 1975 - 1978 | Mercury | Grand Marquis | 460/7.5L V8 | |
| 1975 - 1978 | Mercury | Grand Marquis | 400/6.6L V8 | |
| 1975 - 1976 | Mercury | Cougar | 460/7.5L V8 | |
| 1975 - 1978 | Mercury | Cougar | 400/6.6L V8 | |
| 1975 - 1976 | Ford | Torino | 460/7.5L V8 | |
| 1975 - 1976 | Ford | Torino | 400/6.6L V8 | |
| 1975 - 1977 | Ford | Ranchero | 460/7.5L V8 | |
| 1975 - 1978 | Ford | Ranchero | 400/6.6L V8 | |
| 1975 - 1976 | Ford | Gran Torino | 460/7.5L V8 | |
| 1975 - 1976 | Ford | Gran Torino | 400/6.6L V8 | |
| 1977 - 1982 | Ford | F-350 | 400/6.6L V8 | |
| 1977 - 1982 | Ford | F-250 | 400/6.6L V8 | |
| 1977 - 1979 | Ford | F-150 | 400/6.6L V8 | |
| 1977 - 1979 | Ford | F-100 | 400/6.6L V8 | |
| 1977 - 1996 | Ford | E-350 Econoline Club Wagon | 460/7.5L V8 | |
| 1978 | Ford | E-100 Econoline | 460/7.5L V8 | |
| 1978 - 1979 | Ford | Bronco | 400/6.6L V8 | |
| 1977 - 1979 | Lincoln | Mark V | 400/6.6L V8 | |
| 1977 - 1979 | Lincoln | Continental | 400/6.6L V8 | |
| 1977 - 1978 | Lincoln | Mark V | 460/7.5L V8 | |
| 1977 - 1978 | Ford | LTD II | 400/6.6L V8 | |
| 1980 - 1982 | Ford | E-350 Econoline Club Wagon | 400/6.6L V8 | |
| 1980 - 1982 | Ford | E-350 Econoline | 400/6.6L V8 | |
| 1980 - 1982 | Ford | E-250 Econoline Club Wagon | 400/6.6L V8 | |
| 1980 | Ford | E-250 Econoline | 400/6.6L V8 | |
| 1980 | Ford | E-100 Econoline | 400/6.6L V8 | |
| 1996 | Ford | Econoline Super Duty | 460/7.5L V8 | |
| 1997 | Ford | F-250 HD | 460/7.5L V8 |
Specs:
| # of Teeth | 184 |
|---|---|
| Application | Ford |
| Brand | Hays |
| Emission Code | 5 |
| Engine | Big Block Ford |
| Engine Balance | Internal |
| 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.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.8 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
CAPM PASSED
Format: Paperback
Used this as main study tool passed on first try ! Studied from Dec 2nd -25 took test on Dec 26
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2025
★★★★★ 3
Typos and confusing/missing information
Format: Paperback, Format: Paperback
I finished Domain 1 and it's okay. Things are explained well, but there are a lot of typos and strange formatting. The cover of the book says 2025-2026, but the spine of the book says 2024-2025.
The way that the quiz questions are worded is confusing and sometimes repetitive. I had 2 of the same questions in a row in one section. I'm struggling to take some quizzes because the questions that are being asked do not reference any material from that section (or anywhere in the book so far). I feel like there is information missing in the sections because the quizzes have random terms that have never been mentioned.
Example: D1: Essential knowledge questions
I am being asked about estimation tools like story points, relative estimation, and planning poker. Nowhere in the book have those things been mentioned.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 23, 2025
★★★★★ 5
You got this! Focus on your education
Format: Paperback
Excellent !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 25, 2026
★★★★★ 5
I passed!!! —Highly Recommend
Format: Paperback
Great study guide and structure tailored to the 4 domains that are in the CAPM Exam. I just passed the exam on my first try scoring above target in 3/4 categories and target in 1/4 categories. The online simulations was a great way to prepare for the exam. Highly recommend you purchase to pass the first try! (This and the PMBOK Guide 7th edition were the only study materials I used)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2025
★★★★★ 5
Excellent intro to Crypto
Format: Paperback
Great book for learning about Crypto. I found it well balanced between technical and non-technical information. Love the video inserts to help mix up the learning media. I highly recommend this for people trying to understand the economic models of crypto, the history of crypto as well as the more technical information about how it works (which can be easily skipped if you like). I bought a couple of these for friends.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 7, 2025
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