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Your cart is empty.Speed By Spectre, The 400mph company. Rooted in racing, we design and build every product with the same goal in mind; the best performance in the market... proven on the racetrack! All Speed By Spectre products are designed to perform as good as they look using high quality materials and engineered for optimum fit and function.
Toxie Odom
Reviewed in the United States on March 11, 2025
Works great
JasonZ
Reviewed in the United States on September 12, 2024
These make life so much easier when putting headers on a sbc
KEN E.
Reviewed in the United States on August 7, 2024
Well made nice
Jon T.
Reviewed in the United States on May 15, 2024
They work great unless you really torque them, then you may slip or get crooked enough to strip the heads. Grade 5 steel at best.... Thankfully they have the Allen head, but it's difficult to tighten past 30 lbs. Overall they're good bolts but the threads will strip if you exceed 10 lbs of stress per thread. In other words- you better have more than 3 threads engaged if you want to reach a torque reading of 30 lbs, and that'll be your max.But for use as header bolts they definitely get into places that the other bolts wouldn't, and I've been able to tighten them using the Allen Head when a wrench wouldn't fit. Make sure they're long enough and they'll work.
Steven scrivener
Reviewed in Canada on December 18, 2024
Very good quality
K. A.
Reviewed in the United States on November 15, 2024
Headers where leaking bolts were old.. replaced them with these and new gaskets
russell foote
Reviewed in Canada on April 24, 2024
great
MRMCDOUGAL
Reviewed in the United States on May 10, 2023
Worked perfectly on 1 3/4” Hooke headers.
MC
Reviewed in Canada on December 25, 2023
The Allen feature was exactly what I needed as there was no clearance on my headers for wrench installation..
Mikael
Reviewed in Canada on January 20, 2022
Good
glen forbes
Reviewed in Canada on May 15, 2021
Much better than Usual header bolt ..and a Bit included..cool.
David Johnson
Reviewed in the United States on February 9, 2020
These are ok, well be opting for better produce in the future. Unable to torque down with the joke of allen head socket, way to small.
opiz
Reviewed in the United States on October 20, 2018
Installed these header bolts on a Chevy Vortec. The bolts fit fine and the Disposable tool included to help you install worked well. Bolts had thread locker. The tool helps getting around the headers. Final tightening with a socket of course. Good fit very satisfied
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