SKU: 85699670043

Hays Steel SFI Certified Flexplate - GM LS Engines - 40-508

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Description

Hays Steel SFI Certified Flexplate - GM LS Engines - 40-508Overview: Hays SFI Approved heavy duty flexplates for are constructed of a thicker than stock steel plate, enabling them to withstand the stress of high stall torque converters and high RPM engines. While factory stock plates tend to crack around the crankshaft hub when punished under high torque and RPM conditions, the 4mm thick center plate utilized on a Hays flexplate handles the brute force. These flexplates are supplied with a precision double

Overview:

Hays SFI Approved heavy duty flexplates for are constructed of a thicker than stock steel plate, enabling them to withstand the stress of high-stall torque converters and high-RPM engines. While factory stock plates tend to crack around the crankshaft hub when punished under high torque and RPM conditions, the 4mm thick center plate utilized on a Hays flexplate handles the brute force. These flexplates are supplied with a precision double welded ring gear and feature multiple engine and transmission bolt patterns. All Hays flexplates are zinc-dichromate plated to resist corrosion and are SFI certified under specification 29.1.

Features:

  • SFI-approved - legal for use in racing classes that require SFI certification
  • Flexplate features a precision double welded ring gear
  • Has 4mm thick center plate to resist cracking near crankshaft flange
  • Zinc-dichromate plated to resist corrosion
  • CAD designed to provide optimum performance and reliability
  • Available in Internal or External balanced versions
  • Applications offered for a wide variety of engine and transmission bolt patterns

 

Application:

Year Make Model Submodel Engine Size
2008 - 2013 Chevrolet Corvette Base 376/6.2L V8
2001 - 2006 Chevrolet Silverado 2500 HD LS 403/6.6L V8
2001 - 2005 Chevrolet Silverado 2500 HD Base 364/6.0L V8
2004 Chevrolet Silverado 1500 LS 364/6.0L V8
2004 Chevrolet Silverado 1500 Z71 325/5.3L V8
1999 - 2006 Chevrolet Silverado 1500 LT 325/5.3L V8
1999 - 2005 Chevrolet Silverado 1500 Base 325/5.3L V8
2001 - 2006 Chevrolet Silverado 3500 LS 403/6.6L V8
2001 - 2006 Chevrolet Silverado 3500 LT 364/6.0L V8
2001 - 2006 Chevrolet Silverado 3500 LS 364/6.0L V8
2003 - 2006 Chevrolet Silverado 2500 HD WT 364/6.0L V8
2001 - 2005 Chevrolet Silverado 3500 Base 403/6.6L V8
2001 - 2005 Chevrolet Silverado 3500 Base 364/6.0L V8
2012 - 2017 Chevrolet Camaro ZL1 376/6.2L V8
2001 - 2006 Chevrolet Silverado 3500 LT 403/6.6L V8
2001 - 2005 Chevrolet Silverado 2500 HD Base 403/6.6L V8
2004 Chevrolet Silverado 1500 LT 364/6.0L V8
2001 - 2006 Chevrolet Silverado 2500 HD LT 403/6.6L V8
2001 - 2006 Chevrolet Silverado 2500 HD LS 364/6.0L V8
2014 - 2017 Chevrolet Corvette Stingray 376/6.2L V8
2015 - 2017 Chevrolet Corvette Z06 376/6.2L V8
2009 - 2012 Chevrolet Colorado LT 325/5.3L V8
2014 - 2015 Chevrolet Camaro Z/28 427/7.0L V8
2004 - 2006 Chevrolet C5500 Kodiak C5E042 403/6.6L V8
2005 - 2006 Chevrolet C5500 Kodiak C5E044 403/6.6L V8
2007 Chevrolet Silverado 3500 Classic LS 364/6.0L V8
2007 Chevrolet Silverado 3500 Classic LT 364/6.0L V8
2007 Chevrolet Silverado 2500 HD Classic LT 364/6.0L V8
1999 - 2000 Chevrolet Silverado 2500 Base 325/5.3L V8
1999 - 2004 Chevrolet Silverado 2500 Base 364/6.0L V8
1999 - 2000 Chevrolet Silverado 2500 LS 325/5.3L V8
1999 - 2000 Chevrolet Silverado 2500 LT 325/5.3L V8
1999 - 2004 Chevrolet Silverado 2500 LS 364/6.0L V8
2014 - 2016 Chevrolet Corvette Z51 376/6.2L V8
2007 Chevrolet Silverado 2500 HD Classic LS 364/6.0L V8
2005 - 2007 Chevrolet Corvette Base 364/6.0L V8
2001 - 2006 Chevrolet Silverado 2500 HD LT 364/6.0L V8
2004 - 2006 Chevrolet Silverado 3500 WT 364/6.0L V8
2002 - 2006 Chevrolet Silverado 1500 WT 325/5.3L V8
2010 - 2017 Chevrolet Camaro SS 376/6.2L V8
1999 - 2006 Chevrolet Silverado 1500 LS 325/5.3L V8
2004 - 2006 Chevrolet C4500 Kodiak C4E042 403/6.6L V8
2005 - 2006 Chevrolet C4500 Kodiak C4E044 403/6.6L V8
2004 - 2006 Chevrolet C4500 Kodiak C4V042 403/6.6L V8
2011 Chevrolet Corvette Z06 Carbon 427/7.0L V8
2006 - 2013 Chevrolet Corvette Z06 427/7.0L V8
2009 - 2013 Chevrolet Corvette ZR1 376/6.2L V8
2007 Chevrolet Silverado 1500 Classic LS 325/5.3L V8
2007 Chevrolet Silverado 1500 Classic LT 325/5.3L V8
2007 Chevrolet Silverado 3500 Classic WT 364/6.0L V8
2007 Chevrolet Silverado 2500 HD Classic WT 364/6.0L V8
1999 - 2004 Chevrolet Silverado 2500 LT 364/6.0L V8
2011 - 2012 Chevrolet Camaro 1SS 376/6.2L V8
2010 - 2017 Chevrolet Corvette Grand Sport 376/6.2L V8
2004 - 2006 Chevrolet Silverado 1500 Hybrid 325/5.3L V8
2004 - 2006 Chevrolet Silverado 3500 WT 403/6.6L V8
2004 - 2006 Chevrolet Silverado 2500 HD WT 403/6.6L V8
2004 Chevrolet Silverado 2500 WT 364/6.0L V8
2011 - 2012 Chevrolet Camaro 2SS 376/6.2L V8
2004 - 2006 Chevrolet C4500 Kodiak C4C042 403/6.6L V8
2005 - 2006 Chevrolet SSR Base 364/6.0L V8
2007 Chevrolet Silverado 1500 Classic WT 325/5.3L V8
2005 - 2006 Chevrolet C4500 Kodiak C4C044 403/6.6L V8
2004 - 2006 Chevrolet C5500 Kodiak C5C042 403/6.6L V8
2004 - 2006 Chevrolet C5500 Kodiak C5V042 403/6.6L V8
2004 - 2006 Chevrolet C5500 Kodiak C5U042 403/6.6L V8
2005 - 2006 Chevrolet C5500 Kodiak C5C044 403/6.6L V8
2015 - 2017 Chevrolet SS Base 376/6.2L V8
2013 Chevrolet Corvette 427 427/7.0L V8
2007 Chevrolet Silverado 3500 Classic LS 403/6.6L V8
2007 Chevrolet Silverado 2500 HD Classic LT 403/6.6L V8
2007 Chevrolet Silverado 2500 HD Classic LS 403/6.6L V8
2007 Chevrolet Silverado 3500 Classic LT 403/6.6L V8
2007 Chevrolet Silverado 2500 HD Classic WT 403/6.6L V8
2008 Chevrolet Corvette 427 Limited Edition Z06 427/7.0L V8
2004 - 2006 Chevrolet C4500 Kodiak C4U042 403/6.6L V8
2007 Chevrolet Silverado 3500 Classic WT 403/6.6L V8
2002 Chevrolet Silverado 1500 HD LT 364/6.0L V8
2007 Chevrolet Silverado 1500 Classic Hybrid 325/5.3L V8
2004 Chevrolet Silverado 1500 SS 364/6.0L V8
2002 Chevrolet Silverado 1500 HD LS 364/6.0L V8
1999 - 2000 Chevrolet K3500 LS 350/5.7L V8
1999 - 2000 Chevrolet K3500 LS 395/6.5L V8
1997 - 1998 Chevrolet K3500 Silverado 395/6.5L V8
1997 - 1998 Chevrolet K3500 Silverado 350/5.7L V8
1997 - 1998 Chevrolet K3500 Cheyenne 395/6.5L V8
1997 - 1998 Chevrolet K3500 Cheyenne 350/5.7L V8
1997 - 2000 Chevrolet K3500 Base 350/5.7L V8
1999 - 2000 Chevrolet K2500 LS 395/6.5L V8
1998 Chevrolet K2500 Cheyenne 305/5.0L V8
1997 - 1998 Chevrolet K2500 Silverado 350/5.7L V8
1997 - 2000 Chevrolet K2500 Base 395/6.5L V8
1997 - 1998 Chevrolet K2500 Cheyenne 350/5.7L V8
1997 - 1998 Chevrolet K2500 Cheyenne 395/6.5L V8
1999 - 2005 Chevrolet Silverado 1500 Base 294/4.8L V8
1999 - 2006 Chevrolet Silverado 1500 LS 294/4.8L V8
1997 - 1999 Chevrolet P30 Base 395/6.5L V8
2002 - 2006 Chevrolet Silverado 1500 WT 294/4.8L V8
1999 - 2006 Chevrolet Silverado 1500 LT 294/4.8L V8
1997 - 1998 Chevrolet K1500 Silverado 305/5.0L V8
1997 - 1998 Chevrolet K1500 Silverado 350/5.7L V8
1997 - 1998 Chevrolet K1500 Cheyenne 395/6.5L V8
1997 - 1998 Chevrolet K1500 WT 305/5.0L V8
1998 - 2002 Chevrolet Camaro Z28 SS 350/5.7L V8
1997 - 1999 Chevrolet C2500 400 SS 350/5.7L V8
1997 - 1999 Chevrolet C2500 Custom 350/5.7L V8
1997 - 2004 Chevrolet Corvette Base 350/5.7L V8
1997 - 2002 Chevrolet Camaro Z28 350/5.7L V8
1997 - 2002 Chevrolet C3500HD Base 395/6.5L V8
1997 - 1998 Chevrolet K2500 Silverado 305/5.0L V8
1999 - 2000 Chevrolet K2500 LS 350/5.7L V8
1997 - 2000 Chevrolet C2500 Base 395/6.5L V8
1997 - 2000 Chevrolet C2500 Base 350/5.7L V8
1997 - 1999 Chevrolet C2500 Base 305/5.0L V8
1997 - 1998 Chevrolet C1500 WT 395/6.5L V8
1997 - 1998 Chevrolet C1500 Cheyenne 350/5.7L V8
1997 - 1998 Chevrolet C1500 Cheyenne 305/5.0L V8
1997 Chevrolet C1500 Base 350/5.7L V8
1998 Chevrolet C2500 WT 350/5.7L V8
1998 Chevrolet C2500 WT 395/6.5L V8
1999 - 2000 Chevrolet C2500 LS 350/5.7L V8
1999 - 2000 Chevrolet C2500 LS 395/6.5L V8
1997 - 1998 Chevrolet C2500 Cheyenne 305/5.0L V8
1998 Chevrolet K2500 WT 350/5.7L V8
1998 Chevrolet K2500 WT 305/5.0L V8
1997 - 2000 Chevrolet K3500 Base 395/6.5L V8
1997 - 1998 Chevrolet C1500 Cheyenne 395/6.5L V8
1997 Chevrolet C1500 Base 305/5.0L V8
1997 - 2000 Chevrolet K2500 Base 350/5.7L V8
1997 - 1999 Chevrolet P30 Base 350/5.7L V8
1999 - 2000 Chevrolet C3500 LS 350/5.7L V8
1999 - 2000 Chevrolet C3500 LS 395/6.5L V8
1997 - 1998 Chevrolet C3500 Cheyenne 395/6.5L V8
1997 - 1998 Chevrolet C3500 Cheyenne 350/5.7L V8
1997 - 2000 Chevrolet C3500 Base 350/5.7L V8
2007 Chevrolet Silverado 1500 Classic LS 294/4.8L V8
1997 - 1998 Chevrolet C3500 Silverado 350/5.7L V8
1997 - 1998 Chevrolet C3500 Silverado 395/6.5L V8
1997 - 1998 Chevrolet K1500 Cheyenne 305/5.0L V8
1997 - 1998 Chevrolet K1500 Silverado 395/6.5L V8
1997 - 1998 Chevrolet K1500 Cheyenne 350/5.7L V8
1997 Chevrolet K1500 Base 305/5.0L V8
1997 Chevrolet K1500 Base 350/5.7L V8
1997 - 1998 Chevrolet K2500 Silverado 395/6.5L V8
2007 Chevrolet Silverado 1500 Classic LT 294/4.8L V8
1997 - 2000 Chevrolet C3500 Base 395/6.5L V8
1997 - 1998 Chevrolet C2500 Silverado 395/6.5L V8
1997 - 1998 Chevrolet C2500 Cheyenne 395/6.5L V8
1999 Chevrolet C2500 LS 305/5.0L V8
1997 - 1998 Chevrolet C1500 Silverado 305/5.0L V8
1997 - 1998 Chevrolet C2500 Silverado 305/5.0L V8
1997 - 1998 Chevrolet C2500 Silverado 350/5.7L V8
1997 - 1998 Chevrolet K1500 WT 395/6.5L V8
2000 - 2002 Chevrolet Silverado 2500 Cheyenne 350/5.7L V8
1997 - 1999 Chevrolet C2500 Cheyenne 350/5.7L V8
2000 - 2002 Chevrolet Silverado 2500 Custom 350/5.7L V8
2007 Chevrolet Silverado 1500 Classic WT 294/4.8L V8
1997 Chevrolet K1500 Base 395/6.5L V8
2001 - 2004 Chevrolet Corvette Z06 350/5.7L V8
1997 Chevrolet C1500 Base 395/6.5L V8
1997 - 1998 Chevrolet C1500 Silverado 395/6.5L V8
1998 Chevrolet C2500 WT 305/5.0L V8
2003 Chevrolet Corvette 50th Anniversary Edition Pace Car 350/5.7L V8
1997 - 1998 Chevrolet K1500 WT 350/5.7L V8
1997 - 1998 Chevrolet C1500 WT 350/5.7L V8
1997 - 1998 Chevrolet C1500 Silverado 350/5.7L V8
2003 Chevrolet Corvette 50th Anniversary Edition 350/5.7L V8
2000 - 2002 Chevrolet Silverado 2500 400 SS 350/5.7L V8
1998 Chevrolet Corvette Indianapolis 500 Pace Car 350/5.7L V8
1999 Chevrolet C2500 Austera 350/5.7L V8
1997 - 1998 Chevrolet C1500 WT 305/5.0L V8
2004 Chevrolet Silverado 1500 Z71 294/4.8L V8
1998 Chevrolet K2500 WT 395/6.5L V8

 

Specs:

# of Teeth 168
Application GM LS
Bolt Pattern GM 10-1/2"
Bolt Pattern GM 10-3/4"
Bolt Pattern GM 11-1/2"
Bolt Pattern GM 11-1/8"
Brand Hays
Centerplate Thickness 4 mm
Emission Code 5
Engine Balance Internal
Finish Silver
Material Steel
Product Type Flexplates
SFI Approved Yes
SFI Certification 29.1
Style Quick Launch
Warranty 90 Day
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SKU: 85699670043

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daveyd
Belleville, US
★★★★★ 5
all driven by artificial super intelligence (ASI)
Format: Hardcover
You are peering inside a black hole at a "point" beyond which you cannot see and where no one knows what exists. The point represents a period of time technologically known as Singularity. Even light cannot escape from the point and on the other side it is known only that there is a profound self replicating intelligence greater than our own, all driven by artificial super intelligence (ASI). Physicist Stephen Hawking writes that "In contrast with our intellect, computers double their performance every eighteen months. So the danger is real that they could develop intelligence and take over the world". Computer scientist and professor Vernon Vinge writes that "Within 30 years, we will have the technological means to create super human intelligence. Shortly after the human era will be ended". Our Final Invention is 267 pages of authoritative manuscript that is compelling, fascinating and beyond the fright stage. The book's author on numerous occasions refers to "we" as if there exists a unified collective engaged in artificial general intelligence(AGI) or artificial super intelligence (ASI). The reality is that some 56 nations are currently in different stages of arcane artificial intelligence designs. They include antagonists such as North Korea, Iran and suicide regimes from the Middle East. Russia, China and the U.S. are the biggest players as is Israel. The author believes that super computers fueled by nanotechnology will combine to produce ASI trillions of times more powerful than any human academic or intellectual resources. ASI has the potential to eliminate hunger, poverty, disease and even mortality but disruptions of global economies and politics will be in evidence as balance of powers are shifted. Unemployment dynamics will infect bank tellers, retail clerks, travel agents, loan officers stock brokers.... Computer software designs are so complex, even incomprehensible, that failures are inevitable. The 1986 Chernobyl meltdown, Three Mile Island, and Fukushima were all designed by highly qualified professionals but with complex infrastructures. Under Singularity as computer speeds double with frequency while human intelligence is unchanged, perhaps the musings of Hawking and Vinge will prove to be prescient. Our Final Invention is 267 pages of a very dark subject which not even a trace of a happy Betty Grable ending is to be found. My time has expired. Perhaps the final words were well expressed by Jaan Tallin, cofounder of Skype: 'A hard-hitting book about the most important topic of this century and possibly beyond---the issue of whether our species can survive. I wish it was science fiction but I know it's not'!
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Reviewed in the United States on January 23, 2016
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Jacob Donkin
Fort Morgan, US
★★★★★ 5
Gripping and Informative, a Must-read
Format: Hardcover
As someone who struggles to finish books in their entirety, I found Our Final Invention by James Barrat highly readable, deeply informative, and utterly gripping. The book contains a powerful message: through competition, distrust, desire and curiosity, humans will inevitably create an artificial intelligence (AI) that rivals or surpasses our own. Thus, it is wise and necessary to invest now in mitigation efforts and potential safeguards -- increased research and advocacy for AI risk and, most importantly, producing friendly AI. Barrat covers a lot of ground, but his main argument is summarized as follows: Currently, we humans regularly utilize narrow AI technology (technology capable of achieving specific, programmed goals through unassisted human computing -- Siri, Google search, IBM's Watson, etc). We are also experimenting with "black box" tools and techniques (programs where inputs and outputs are understood and measurable, but the processes in between aren't -- genetic algorithms/programming and software that writes better software) and artificial neural networking (ANN), as seen through efforts to reverse engineer the human brain. And, below the surface, there is an ongoing race between world powers (driven mainly by national security, defense, and international business interests) and guided by AI developers to develop and achieve artificial general intelligence (AGI) -- human-level artificial intelligence. The problem is that once AGI is achieved it will be very difficult to manage, and may very well result in the manifestation of artificial super intelligence (ASI) -- greater than human-level intelligence. ASI could theoretically become thousands of times smarter than the smartest human being alive. It won't think like us, won't want to be ruled by us, and, most crucially, it won't want to be turned off. In fact, ASI would likely regard us as potential fuel for its quest to duplicate and improve itself exponentially in order to achieve its goals. Throughout the book, Barrat refers to interesting psychological phenomena and concepts (such as the normalcy bias), while drawing on personal experiences, historic events, and interviews with computer programmers, inventors and philosophers, to tactfully illustrate how progress in AI development is dangerously rapid. Adequate checks and balances are not in place to deal with a non-ideal intelligence explosion or hard take-off (AGI quickly leading to ASI). I highly recommend this book to anyone interested in learning about both human beings and the advancement of machines. I suspect that the prominence of AI, as a research field and topic for discussion, will only increase in time (it already has in recent years -- drones, smart technology, Wall Street high frequency trading (HFT), financial modeling), making Our Final Invention a valuable guide or stepping stone for anyone trying to understand our world and the path of the future.
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Reviewed in the United States on July 3, 2014
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Ashley Sutton
West Palm Beach, US
★★★★★ 5
Great book
Format: Hardcover
We love the FGTEEV books!
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Reviewed in the United States on May 31, 2026
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Krissy Miller
Houston, US
★★★★★ 5
FGTeeV:
Format: Hardcover
The 11 yr old loves it.
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Reviewed in the United States on May 17, 2026
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Rebecca Leary
Pawtucket, US
★★★★★ 5
Perfect, hardback!!!
Format: Hardcover
Bought this book for my teens. They love it. Perfect hardback quality for the price. They have the whole series
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Reviewed in the United States on May 5, 2026

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