Home / Shop / Hays Heavy-Duty 168-Tooth Flexplate 40-508 Flexplates, Heavy-Duty, 168-tooth, Steel, SFI 29.1, Internal Engine Balance, One-piece Rear Main Seal, Chevrolet, Small Block LS, Each

Hays Heavy-Duty 168-Tooth Flexplate 40-508 Flexplates, Heavy-Duty, 168-tooth, Steel, SFI 29.1, Internal Engine Balance, One-piece Rear Main Seal, Chevrolet, Small Block LS, Each

SKU: HAY40-508

Flexplates

Hays

Hays Heavy-Duty 168-Tooth Flexplate 40-508 Flexplates, Heavy-Duty, 168-tooth, Steel, SFI 29.1, Internal Engine Balance, One-piece Rear Main Seal, Chevrolet, Small Block LS, Each

SKU: HAY40-508

Flexplates

BACKORDER This item will be special ordered in for you. Contact us prior to purchase if you require an ETA.

We accept

Description

Hays heavy-duty flexplates for high performance and competition engines are constructed from a thicker-than-stock steel plate. This enables 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 thicker Hays flexplates can handle the force. These heavy-duty flexplates are supplied with a ring gear that is securely welded in place. All Hays heavy-duty flexplates are zinc-dichromate plated to resist corrosion and SFI-certified under specification 29.1.

Part Type

Flexplates

Data: v4.2 - Upd: 2026-10-14 17:08:50

Specifications

Product Attributes - Brand: Hays
Product Attributes - Manufacturer's Part Number: 40-508
Product Attributes - Part Type: Flexplates
Product Attributes - Product Line: Hays Heavy-Duty Flexplates
Product Attributes - UPC: 090127062388
Product Attributes - Ring Gear Tooth Quantity: 168-tooth
Product Attributes - Rear Main Seal Style: 1-piece
Product Attributes - Engine Balance: Internal
Product Attributes - Flexplate Material: Steel
Product Attributes - SFI Rating: SFI 29.1
Product Attributes - Marine Use: No
Product Attributes - Quantity: Sold individually.

Reference Information

Brand Name/s	Hays
StreetFX SKU	hay40-508
SFX Item ID	5093445
Supplier Item Code	5093445
Manufacturer SKU	40-508
Manufacturer UPC	90127062388
Alternative References	168-Tooth

Compatibility

Application Data

Beginning Year 2006
CC 5967
CID 364
Ending Year 2007
Engine Family CHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size 6.0L/364
Engine Type V8
Engine VIN Code U
Liter 6.0
Make CADILLAC
Model CTS
Region USA
Submodel V
Beginning Year 2009
CC 6162
CID 376
Ending Year 2015
Engine Family CHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size 6.2L/376
Engine Type V8
Engine VIN Code P
Liter 6.2
Make CADILLAC
Model CTS
Region USA
Submodel V
Beginning Year 2012
CC 6162
CID 376
Ending Year 2012
Engine Family CHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size 6.2L/376
Engine Type V8
Engine VIN Code P
Liter 6.2
Make CADILLAC
Model CTS
Submodel V BLACK DIAMOND
Beginning Year 2013
CC 6162
CID 376
Ending Year 2014
Engine Family CHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size 6.2L/376
Engine Type V8
Engine VIN Code P
Liter 6.2
Make CADILLAC
Model CTS
Submodel V LUXURY

Beginning Year	2013
CC	6162
CID	376
Ending Year	2014
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	P
Liter	6.2
Make	CADILLAC
Model	CTS
Submodel	V PREMIUM BLACK DIAMOND

Beginning Year 2002
CC 5967
CID 364
Ending Year 2006
Engine Family CHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size 6.0L/364
Engine Type V8
Engine VIN Code N
Liter 6.0
Make CADILLAC
Model ESCALADE
Region USA
Submodel BASE
Beginning Year 2007
CC 6162
CID 376
Ending Year 2008
Engine Family CHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size 6.2L/376
Engine Type V8
Engine VIN Code 8
Liter 6.2
Make CADILLAC
Model ESCALADE
Region USA
Submodel BASE

Beginning Year	2009
CC	6162
CID	376
Ending Year	2009
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 FLEX FUEL
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	2
Liter	6.2
Make	CADILLAC
Model	ESCALADE
Region	USA
Submodel	BASE

Beginning Year	2010
CC	6162
CID	376
Ending Year	2014
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 FLEX FUEL
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	F
Liter	6.2
Make	CADILLAC
Model	ESCALADE
Region	USA
Submodel	BASE

Beginning Year	2003
CC	5967
CID	364
Ending Year	2006
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size	6.0L/364
Engine Type	V8
Engine VIN Code	N
Liter	6.0
Make	CADILLAC
Model	ESCALADE ESV
Region	USA
Submodel	BASE

Beginning Year	2007
CC	6162
CID	376
Ending Year	2008
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	8
Liter	6.2
Make	CADILLAC
Model	ESCALADE ESV
Region	USA
Submodel	BASE

Beginning Year	2009
CC	6162
CID	376
Ending Year	2009
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 FLEX FUEL
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	2
Liter	6.2
Make	CADILLAC
Model	ESCALADE ESV
Region	USA
Submodel	BASE

Beginning Year	2010
CC	6162
CID	376
Ending Year	2014
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 FLEX FUEL
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	F
Liter	6.2
Make	CADILLAC
Model	ESCALADE ESV
Region	USA
Submodel	BASE

Beginning Year	2011
CC	6162
CID	376
Ending Year	2014
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 FLEX FUEL
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	F
Liter	6.2
Make	CADILLAC
Model	ESCALADE ESV
Region	USA
Submodel	LUXURY

Beginning Year	2008
CC	6162
CID	376
Ending Year	2008
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	8
Liter	6.2
Make	CADILLAC
Model	ESCALADE ESV
Region	USA
Submodel	PLATINUM

Beginning Year	2009
CC	6162
CID	376
Ending Year	2009
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 FLEX FUEL
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	2
Liter	6.2
Make	CADILLAC
Model	ESCALADE ESV
Region	USA
Submodel	PLATINUM

Beginning Year	2010
CC	6162
CID	376
Ending Year	2014
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 FLEX FUEL
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	F
Liter	6.2
Make	CADILLAC
Model	ESCALADE ESV
Region	USA
Submodel	PLATINUM

Beginning Year	2011
CC	6162
CID	376
Ending Year	2014
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 FLEX FUEL
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	F
Liter	6.2
Make	CADILLAC
Model	ESCALADE ESV
Region	USA
Submodel	PREMIUM

Beginning Year	2012
CC	6162
CID	376
Ending Year	2012
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 FLEX FUEL
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	F
Liter	6.2
Make	CADILLAC
Model	ESCALADE ESV
Submodel	SPECIAL EDITION

Beginning Year	2002
CC	5967
CID	364
Ending Year	2006
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size	6.0L/364
Engine Type	V8
Engine VIN Code	N
Liter	6.0
Make	CADILLAC
Model	ESCALADE EXT
Region	USA
Submodel	BASE

Beginning Year	2007
CC	6162
CID	376
Ending Year	2008
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 GAS
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	8
Liter	6.2
Make	CADILLAC
Model	ESCALADE EXT
Region	USA
Submodel	BASE

Beginning Year	2009
CC	6162
CID	376
Ending Year	2009
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 FLEX FUEL
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	2
Liter	6.2
Make	CADILLAC
Model	ESCALADE EXT
Region	USA
Submodel	BASE

Beginning Year	2010
CC	6162
CID	376
Ending Year	2013
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 FLEX FUEL
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	F
Liter	6.2
Make	CADILLAC
Model	ESCALADE EXT
Region	USA
Submodel	BASE

Beginning Year	2011
CC	6162
CID	376
Ending Year	2013
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 FLEX FUEL
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	F
Liter	6.2
Make	CADILLAC
Model	ESCALADE EXT
Region	USA
Submodel	LUXURY

Beginning Year	2011
CC	6162
CID	376
Ending Year	2013
Engine Family	CHEVY SMALL BLOCK GEN III/IV LS V8 FLEX FUEL
Engine Size	6.2L/376
Engine Type	V8
Engine VIN Code	F
Liter	6.2
Make	CADILLAC
Model	ESCALADE EXT
Region	USA
Submodel	PREMIUM

Loading compatibility information...

Keep shopping

Hays Heavy-Duty 168-Tooth Flexplate 40-508 Flexplates, Heavy-Duty, 168-tooth, Steel, SFI 29.1, Internal Engine Balance, One-piece Rear Main Seal, Chevrolet, Small Block LS, Each

Hays Heavy-Duty 168-Tooth Flexplate 40-508 Flexplates, Heavy-Duty, 168-tooth, Steel, SFI 29.1, Internal Engine Balance, One-piece Rear Main Seal, Chevrolet, Small Block LS, Each

Description

Part Type

Specifications

Reference Information

Compatibility

More from Hays

Hays Twister 3/4 Race 2,800-3,200 Stall Torque Converter 97-2A28Q Converters, Race, rpm Speed Range, 29-spline, 10.00 in. Diameter, FMX/AOD/C3, Bricklin, Ford, Mercury, Each

Hays Hydraulic Clutch Release Bearing Shims 82-117 Throwout Replacement Components, Shims, 0.50 in. Thick, T-56, Tremec TR6060, Each

Hays Hydraulic Release Bearing Kits 82-103 Throwout Bearing, Conversion, Assembly, Braided Steel Hose, Shims, Ford, Kit

Hays Pilot Bearings and Bushings 50379 Bearing, Gm Ls/Lt Large Bearing

Hays Street/Strip Clutch Kits 85-103 Kit, Street/Strip, Organic, 1 1/8 in.-10-Spline, 10.5 in. Diameter Disc, Buick, Chevy, Pontiac, Kit

Hays Heavy-Duty 164-Tooth Flexplate 12-071 Flexplate, 164-Tooth, Internal Engine Balance, 1-Piece Seal, SFI 29.1, Ford, 4.6L, 8-Bolt, Each