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About ICT Billet
ICT Billet was born from a passion for LS swaps. After tackling our first swap in 2001, we saw the need for better parts and reliable information. In 2014, we launched ICT Billet to provide high-quality, American-made parts that simplify and enhance LS and LT swaps.
We’re dedicated to supporting car enthusiasts with precision-engineered products, detailed installation guides, and world-class service. Thank you for choosing ICT Billet—your partner in making exceptional builds a reality.
ICT Billet USA BOLT KIT ONLY LS Exhaust Manifold/Header Flange Bolts
Header / Exhaust Manifold to Engine Bolt Kit
ICT Billet USA BOLT KIT ONLY LS Exhaust Manifold/Header Flange Bolts
Header / Exhaust Manifold to Engine Bolt Kit LS1 LS3 LS2 LSX ICT LM7 LR4 LQ4 LS6 LQ9 L33 LH6 L92 L76 L99 L96 L82 L83 L84 L86 L87 LT1 551696
- Compatible With All Gm Ls & Lt (Gen 5) Series Engines 1997-Up
- All Ict Billet Metric Flange Bolts Are Custom Made For Us, Right Here In The Usa!! Grade 10.9, Jis Head
- Olts Are Clear Zinc Coated Steel, Grade 10.9, Jis Head
- Package Includes: 12Pcs - M8-25Mm Length
- Torque Spec For M8 Exhaust Bolts Is 18 Ft-Lb
Premium USA Produced Materials
Our parts are crafted from premium-grade materials, sourced and produced right here in the USA. Designed by experts in our state-of-the-art facility, we use cutting-edge American-made equipment to ensure unmatched quality and durability.
Exceptional Quality
At ICT Billet, quality is our standard. Every part we produce is crafted with precision using advanced manufacturing technologies in our USA facility. Our commitment to excellence ensures unmatched reliability and performance for your engine swap.
Innovation in Development
At ICT Billet, precision is key. Using advanced technology, we laser-scan vehicles to create solid models for perfect fitment every time. Our commitment to research and development ensures our products work seamlessly from the start.
American Made
Our goal is to use as many USA-made components as possible to keep our jobs in America. We use US-made materials, belt tensioners, metric flange bolts, pulleys and many other components that are manufactured in the USA for reliability.
Your Complete LS Swap Shop
From engine mounts to wiring, ICT Billet is your one-stop shop for LS swaps. We provide everything you need to make your swap smooth, efficient, and professional.
SEMA Proud, SEMA Strong
As a proud member of SEMA, we are part of an elite group of automotive manufacturers. Our dedication to quality and innovation sets us apart, delivering products you can depend on.
Daniel
April 12, 2025
Solid quality bolts for exhaust. Used on an LS3 crate engine.
Erick
April 5, 2025
These are high quality bolts. A great savings over the lesser grade Mr Gasket brand bolts.
Edward Siver
April 1, 2025
Only been on 2 months but holding up just fine. Love the large head for better clamping force and better sealing.
Christopher M. Kubond
March 22, 2025
Really nice header/exhaust manifold bolts. Put a dab of thread locker on before installing. Would buy again for sure
Customer
March 4, 2025
A little pricey but received in less than 24 hours. Should be go to go for as long as I own my 1948.
Austin
February 23, 2025
Good bolt kit but the description is wrong. They don't fit a LT1. Luckly I have a LS also so I used them on it but if your buying them for a LT1 your wasting your money
Tina Mc
January 21, 2025
I used these new bolts for a new engine swap. Three of my exhaust bolts were broken off in the head. These new bolts threaded in fine and I put antiseize on them to prevent breaking in the future.
The Hoff
January 2, 2025
This is the third time ive come back, i always replace header bolts on an LS engine every gasket change. They have never broken, nor refused to come out.
frédéric
December 2, 2024
parfait merci
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