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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 Made - Transmission Pan Bolt Set Trans Chevy 6L80E 6L90E 8L80E 8L90E 10L80E 10L90E Kit 18pcs Bolts 551683-18M6
GM Transmission Pan Bolt Set Compatible with 6L80E 6L90E 8L80E 8L90E 10L80E 10L90E transmissions
Compatible with 6L80E 6L90E 8L80E 8L90E 10L80E 10L90E transmissions
- Heavy duty, high strength, grade 10.9 bolts
- Zinc coated for long lasting corrosion protection and prevents threads from seizing
- Made in the USA bolts
- All ICT Billet metric flange bolts are custom made, right here in the USA!!
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.
Proudly American Made
Keeping jobs in America is our priority. We use USA-made materials, belt tensioners, metric flange bolts, pulleys, and more. Our focus on American manufacturing means reliable products you can trust.
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.
Jeff M.
2025-08-31 19:31:30
Highly recommended using these bolts when replacing gasket and or transmission pan. These are much better quality than OEM bolts amd a nice affordable upgrade option. Used these for my 2018 Chevy Silverado 1500 transmission fluid change as I replaced the fluid, gasket and reimstalled pan. Glad I went eoth these despite my OEM bolts still being in good condition. These are head size 8mm vs OEM 10mm however the threads and length match fine.
Joshua
2025-07-23 15:44:25
I bought these bolts after watching a YouTube video on changing fluid in a 6L80E transmission. They arrived and definitely looked appealing but when installed some sat flush and others had a pretty significant gap between the mating surface. Additionally, I had torqued these bolts to spec and I ended up breaking two of these billit bolts… Could’ve been user error but I wasn’t as impressed with the install va when they arrived.
Andrew
2025-07-17 17:41:20
I also snapped a bolt head when torquing down the transmission pan, and I was able to get these delivered the next day. They definitely felt and looked high quality in person. I was obviously nervous torquing these down, but I had zero issues getting torqued down to 80 inch pounds. Note: these bolts are 8mm, as compared to the 10mm stock bolts. This was also installed on my 2017 Silverado 1500 with the 6l80e.
Christopher Reaney
2025-06-01 13:55:56
I had one of my bolts shear because thesundaedrive guide I was following gave improper torque specs. These bolts were a direct fit and I was able to get them when GM couldnt.
Jason R Jaure
2025-01-26 12:14:14
Didn't fit my trans too long ...useless bolts in my drawer now
John
2024-12-12 15:13:11
Just wrong size and decided to re-install OEM screws instead.
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