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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.
MRMCDOUGAL
2025-08-24 17:53:14
Worked perfectly on 1 3/4†Hooke headers.
Toxie Odom
2025-08-20 15:20:44
Works great
Jon T.
2025-08-02 18:00:02
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.
K. A.
2025-08-01 16:14:52
Headers where leaking bolts were old.. replaced them with these and new gaskets
David Johnson
2025-07-24 10:46:06
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.
JasonZ
2025-07-07 16:55:40
These make life so much easier when putting headers on a sbc
KEN E.
2025-05-22 15:42:12
Well made nice
opiz
2025-04-21 20:00:30
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
Steven scrivener
2025-04-03 13:59:50
Very good quality
russell foote
2025-03-15 20:09:54
great
MC
2025-03-05 17:35:24
The Allen feature was exactly what I needed as there was no clearance on my headers for wrench installation..
Mikael
2025-02-23 12:14:43
Good
glen forbes
2025-02-11 18:37:36
Much better than Usual header bolt ..and a Bit included..cool.
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