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Your cart is empty.Speedmaster head stud kits are made from aircraft quality 8740 high tensile strength Chromoly steel and are heat treated prior to rolling. Each stud is precisely heat-treated to 190,000 PSI to ensure complete heat penetration for a superior head stud above the rest! Compatible with Chevy LS 1997-2003 3 Bolt Length Head Stud Kit Includes: Fits 1997-03 and some 2004 having 3 lengths of studs 12-Point nuts Hardened parallel washers included Black oxide finish Made of 8740 Chromoly aircraft quality steel Sold as set Torque Specs with Moly Lube: 25lbs 1st pass, 50lbs 2nd pass, 70lbs 3rd pass (under valve cover). 22lbs for ports. Torque Specs with Motor Oil: 30lb 1st pass, 60lbs 2nd pass, 80lbs 3rd pass. 28lbs for ports. Torque Specs with Degrees: 22lbs and 76 degree 1st pass, add 34 degrees 2nd pass. 28lbs for ports.
evertune
Reviewed in the United States on March 24, 2025
Was a bit leery to purchase with some of the reviews showing striping and breaking. I had no problems with the installation and seem to be holding up. I used the ARP torque sequence. I also uploaded an extensive video on you tube.
Moparich
Reviewed in the United States on January 8, 2025
installed nice no issues used ARP moly lube and torque sequence for this stud kit.this kit is for the LS1 style block with the 4 shorter head studs on the ends.
Lisa
Reviewed in the United States on March 13, 2022
Can't afford ARP. So I did some research and found these are as strong. Never had any issues. Used ARP stud torque specs and lube.
DMS
Reviewed in the United States on March 3, 2021
I picked up a set of these for my LS1 that was going in a race car. I've seen the posts on some of the forums about these being weak and not able to handle the load but I was willing to give them a try. They torqued up just fine and have ran for 2 years of racing now with out a problem, At the end of 2020 the engine let go it had nothing to do with the head studs so I reused them on the new engine, and again the heads mounted up just fine. I would not have a problem in buying them again.
Kaitlynn Perry
Reviewed in the United States on March 20, 2021
Delivered faster than expected. Good quality!
Jo Neely
Reviewed in the United States on November 10, 2021
All studs were installed per instructions ( which did not come with product) . Had to research online for those. Everything went well until the 2nd to last of the smallest studs. It , for some reason , stripped the threads from the stud before reaching 20 lbs of torque. Seems that there wasn't enough length on the stud for the nut to grab enough threads .Contacted the seller and requested a replacement for the single small stud. Was informed that i would have to completely disassemble my engine and send the entire set back for replacement. That is not an option as the rest of the studs were fine and torqued to specs without incident. So i replaced the defective stud with one from my local machine shop.My advise , order two sets just in case . Or just buy the ARP studs and have no worrys.Will update after engine is ran for a while as to the studs retaining torque under hot/cold cycles.
oklarodder
Reviewed in the United States on April 1, 2021
Product appears to be as advertised
J Robertson
Reviewed in the United States on December 18, 2017
Did not fit. Threads on the block side of the stud are incorrect pitch. They'll start but they feel tight within 3 turns. After comparing them to both an ARP tool and the factory head bolt I can tell these studs are incorrect. Tried to install in a 2002 LS motor.
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