Series 4135 Gen 3 LS Head Stud Kit, 97-03 LS1/5.3 LM7/6.0 LQ4

#28981963

Series 4135 Gen 3 LS Head Stud Kit, 97-03 LS1/5.3 LM7/6.0 LQ4

Name: Series 4135 Gen 3 LS Head Stud Kit, 97-03 LS1/5.3 LM7/6.0 LQ4
Brand: Speedway Motors
SKU: 28981963
Price: 127.99 USD
Availability: LimitedAvailability
Rating: 5 (2 reviews)

2 Reviews

1 Question

Made from 4135 chromoly steel, with a maximum tensile strength of 190,000 PSI, for unmatched durability and performance under extreme conditions
Threads are rolled after heat treatment and thoroughly tested for tensile and yield strength, ensuring top-tier reliability and strength

$127.99

/set

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Product Summary

12 Point Wrench Type, Stud Fastener Style, Black Oxide

Made from 4135 chromoly steel, with a maximum tensile strength of 190,000 PSI, for unmatched durability and performance under extreme conditions
Threads are rolled after heat treatment and thoroughly tested for tensile and yield strength, ensuring top-tier reliability and strength
Finished with a black oxide coating and oil finish, providing excellent resistance to rust and corrosion for long-lasting performance
Designed with a 12-point configuration, allowing for secure, high-torque fastening and precise applications, particularly for performance and racing setups
Designed specifically for LS engine builds, this stud kit ensures reliable and consistent cylinder head pressure, maximizing engine performance and longevity

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Key Specs

MFG. Part #	734-81963
Brand	Speedway Motors
Fastener Style	Stud
Thread Pitch	11mm-2.0 / 8mm-1.25
Fastener Material	4135 Chromoly Steel

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Speedway Motors 734-81963 Details

Head stud kit for popular 1997-2003 Gen 3 LS V8 engines
Made from 4135 chromoly steel with 190,000 PSI tensile strength
Precision rolled threads with black oxide finish
Includes 16 long, 4 medium, and 10 short studs, flat washers, and 12-point nuts
Provides excellent clamping force and easier cylinder head and gasket alignment
Ideal solution for higher compression or boosted street car applications

Head Bolts or Head Studs, Which One Is Right for Your Build?

If you’re putting together a fresh bullet for your muscle car, hot rod, classic truck, or even your daily driver, you might be considering upgrading to head studs over the standard head bolts that you’re used to using. In most cases, the standard cylinder head bolt will suffice for mild performance usage. They also will often save some of your build budget for that hotter camshaft or roller rockers on your wish list as well. Not to mention for really tight engine bays, sometimes cylinder head bolts are the only option from an assembly/servicing standpoint without removing the entire engine just to replace a head gasket or other top end work (and who wants to do that?).

Head studs, on the other hand, provide much more even clamping force, as the nut and washer is tightened it only stretches the stud, providing for a more accurate torque reading versus a head bolt that is tightened into the block threads causing both twisting and stretching. Cylinder head studs also act as alignment dowels for the head gasket and cylinder head that make installation easier and are reusable. This is important where many modern head bolt applications are often a one-time-use “torque-to-yield” fastener. Head studs are certainly the preferred path for those going with higher compression, or higher cylinder pressures from nitrous, or boost pressure from a supercharger or turbo. We offer the most popular applications in our Series 4135 head studs but if you’re looking for even more fastener yield strength consider our expanded line of Series 8740 head studs.

Our Series 4135 Head Studs Provide the Clamping Force Your Engine Needs

Manufactured from 4135 chromoly steel, our Series 4135 head studs feature 140-150K PSI fastener yield strength and 180-190K PSI fastener tensile strength. Each head stud kit includes head studs, washers, and nuts that are finished in a protective black oxide coating and oil finish to resist rust and look good on your engine for many years to come. The studs are heat treated and feature cold rolled threads for smooth and positive engagement in your engine block and are topped off with matching hardened washers with 12-point flange nuts to ensure your cylinder heads can be torqued to their proper spec.

Application

GM 1997-2003 Gen III Small Block V8 LS engines, including LS1, LM7, LK4, and others with the following displacements:

4.8L (293ci)
5.3L (325ci)
5.7L (346ci)
6.0L (364ci)

Also available in our Series 8740 head studs.

Guides & Documents

Cylinder Head Bolts Installation Instructions (28981963)

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

Speedway Motors 734-81963 Specifications

KEY SPECS
MFG. Part #	734-81963
Brand	Speedway Motors
Fastener Style	Stud
Thread Pitch	11mm-2.0 / 8mm-1.25
Fastener Material	4135 Chromoly Steel

GENERAL
Wrench Type	12 Point
Head Style	12 point
Tensile Strength	190000
Fastener Finish	Black Oxide
Washers Included	Yes
Sold in Quantity	Set
Finish	Black Oxide

Ratings & Reviews

2 Reviews

Overall Assessment

Customers appreciate the product for its impressive quality, comparable to top brands. The head studs for engines are noted for their practicality, usability, and fine material, exceeding customer expectations for performance. Shoppers highly recommend our product over competitors due to its high quality and effectiveness.

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2 reviews

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Greatly appreciated!

5.0

5 months ago

Andrew

Asheville, NC

Verified

I ordered head studs for my engine & unfortunately they were lost in transit. Got in touch with customer service & they were very apologetic for the inconvenience & expedited me a new set free of charge. Very thankful for speedwaymotors.🙏

Would Recommend

Good fast, shipping quality parts

5.0

5 months ago

Dylan McW

Fairdale ky

Verified

Very impressed with the head studs, just as good quality as ARP or other top leading brands

Would Recommend

Showing 2 of 2 reviews

Questions & Answers

1 Question • 1 Answer

Sort Questions

What are the torque specs on this stud kit?

by Kenan Shaw

• a year ago

1 answer

View Answer

1 of 1 questions shown

Fitment

2004 Buick Rainier

GM LM4

2004-2005 Cadillac CTS

GM LS6

2002-2011 Cadillac Escalade

GM LM7
GM LQ9

2003-2006 Cadillac Escalade ESV

GM LM7
GM LQ9

2002-2006 Cadillac Escalade EXT

GM LM7
GM LQ9

2002-2006 Chevy Avalanche 1500

GM LM7

2000-2002 Chevy C1500

4.8 Chevy LS V8
GM LM7
GM LQ4

1998-2002 Chevy Camaro

GM LS1

1997-2000 Chevy Corvette

GM LS1

2001-2004 Chevy Corvette

GM LS1
GM LS6

1999-2014 Chevy Silverado 1500

4.8 Chevy LS V8
GM LM7

2007 Chevy Silverado 1500 Classic

GM LQ4

2001-2003 Chevy Silverado 1500 HD

GM LQ4

2005-2006 Chevy Silverado 1500 HD

GM LQ4

2007 Chevy Silverado 1500 HD

GM LQ9

2007 Chevy Silverado 1500 HD Classic

GM LQ4

2000-2004 Chevy Silverado 2500

GM LM7
GM LQ4

2005 Chevy Silverado 2500

GM LQ9

2001-2011 Chevy Silverado 2500 HD

GM LQ4

2007 Chevy Silverado 2500 HD Classic

GM LQ4

2001-2006 Chevy Silverado 3500

GM LQ4

2007 Chevy Silverado 3500 Classic

GM LQ4

2007-2011 Chevy Silverado 3500 HD

GM LQ4

2003-2004 Chevy SSR

GM LM4

2000-2001 Chevy Suburban 1500

GM LM7

2002-2006 Chevy Suburban 1500

GM L59
GM LM7

2000-2006 Chevy Suburban 2500

GM LQ4

2000-2006 Chevy Tahoe

4.8 Chevy LS V8
GM L59
GM LM7

2007 Chevy Tahoe

4.8 Chevy LS V8

2002-2009 GMC Envoy

GM LM4

2002-2006 GMC Envoy XL

GM LM4

2004-2005 GMC Envoy XUV

GM LM4

2001-2005 GMC Savana 1500

4.8 Chevy LS V8
GM LM7
GM LQ4

2006 GMC Savana 1500

4.8 Chevy LS V8
GM L33
GM LM7
GM LQ4

2007-2014 GMC Savana 1500

4.8 Chevy LS V8
GM L33
GM LQ4

2001-2005 GMC Savana 2500

4.8 Chevy LS V8
GM LM7
GM LQ4

2006-2013 GMC Savana 2500

4.8 Chevy LS V8
GM L33
GM LQ4

2002-2005 GMC Savana 3500

4.8 Chevy LS V8
GM LM7
GM LQ4

2006-2013 GMC Savana 3500

4.8 Chevy LS V8
GM L33
GM LQ4

2007 GMC Sierra 1500 Classic

GM L33
GM L59
GM LM7

2001-2003 GMC Sierra 1500 HD

GM LQ4

2005-2006 GMC Sierra 1500 HD

GM LQ4

2007 GMC Sierra 1500 HD Classic

GM LQ4

1999-2001 GMC Sierra 2500

GM LM7
GM LQ4

2002-2004 GMC Sierra 2500

GM LQ4

2001-2011 GMC Sierra 2500 HD

GM LQ4

2007 GMC Sierra 2500 HD Classic

GM LQ4

2001-2006 GMC Sierra 3500

GM LQ4

2007 GMC Sierra 3500 Classic

GM LQ4

2001 GMC Sierra C3

GM LQ4

2000-2011 GMC Yukon

4.8 Chevy LS V8
GM LM7

2000 GMC Yukon XL 1500

GM LM7

2001-2011 GMC Yukon XL 1500

GM L59
GM LM7
GM LQ4

2000-2011 GMC Yukon XL 2500

GM LQ4

2003-2007 Hummer H2

GM LQ4

1998-2002 Pontiac Firebird

GM LS1

2004 Pontiac GTO

GM LS1