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Matt
Reviewed in the United States on July 31, 2023
Used on a Yukon Denali 6.2Good hardness and finish very similar to the xotic head bolts which are chromemolyEasily took 18 ft lbs without yielding any
BillyBob
Reviewed in the United States on July 25, 2021
They worked pretty well, seemed to thread into untreated head holes well. Pretty small bolt heads but that means they clear aftermarket headers well I guess. I had to remove and install my headers twice, using snap-on impact drivers, and none of the bolts snapped off, so that's kinda awesome lol.Not much to say, they're just bolts, but they did everything I expected of them so A++
Kyler
Reviewed in the United States on June 26, 2019
Good
Von
Reviewed in the United States on February 14, 2019
They worked for my 99’ Chevy Silverado 2500 with the 6.0L
Eric Guest
Reviewed in the United States on July 11, 2018
Worked fine and got here next day for cheaper than going to the parts store. Can't beat that.
Bill Bigelow
Reviewed in the United States on March 9, 2018
Probably was me but they're the wrong size headers came with all hardware so we good
Ernie
Reviewed in the United States on April 26, 2018
Worked great for my headers on my 5.3 vortec. Went in no problem!
William H.
Reviewed in the United States on April 2, 2018
Worked perfectly on my 2012 Camaro with LS3
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