BTR Brian Tooley Racing LS Rocker Arm Bolts — Set of 16 8mm 12-Point Heads for LS1/LS2/LS3/LS6/LQ4 Engines, High-Strength

BTR Brian Tooley Racing LS Rocker Arm Bolts TK/BOLTS02-16 are a precision set of 16 high-strength rocker arm bolts engineered to secure valvetrain components on GM LS-series 5.3L–6.2L engines.

These bolts are made to be a direct, durable replacement for factory hardware in popular LS applications — including LS1, LS2, LS3, LS6, LQ4, LQ9, LY5, LY6 and LM7 platforms. With an 8mm thread and a 12-point head profile, the set simplifies installation and torque application while providing the clamping reliability needed for street driving, race use, and engine builds.

How do these bolts improve rocker arm retention?

The TK/BOLTS02-16 kit replaces worn or stretched original bolts with fresh hardware manufactured to tighter strength and dimensional standards. That steadier clamping force helps keep rocker arms correctly seated, reducing the chance of valvetrain misalignment at higher RPMs.

• Set includes 16 bolts to cover both cylinder heads
• High-strength material resists elongation under load
• Consistent torque capability maintains valve geometry

Will these bolts fit my LS engine and tools I already own?

Yes — the bolts are compatible with a wide range of LS-series blocks and heads listed above and use a common 12-point head so you can use standard 12-point sockets or a 12-point wrench. They’re designed to match OEM spacing and thread size for straightforward installation without modifications.

• 8mm thread size matches LS rocker boss threads
• 12-point head accepts standard 12-point sockets and tools
• Direct-fit for LS1/LS2/LS3/LS6/LQ4/LQ9/LY5/LY6/LM7 platforms

Are these bolts suitable for performance or high-RPM use?

These bolts are built from premium materials and intended to withstand the stresses of higher engine speeds better than fatigued stock bolts. While they don’t alter valvetrain geometry, the improved clamping durability supports reliable operation when you upgrade cams or run more aggressive valve events.

• Manufactured for enhanced tensile strength over aged OEM bolts
• Helps prevent bolt stretch during sustained high-RPM operation
• Good choice for cam swaps, rebuilds, and performance builds

How should I install and torque these bolts for best results?

Follow the vehicle manufacturer’s recommended torque sequence and values for rocker arm bolts where available, or use the cam and valvetrain component maker’s specs if you’ve installed aftermarket parts. Always replace bolts in sets and use proper lubrication or thread prep as specified to achieve accurate torque readings.

• Replace bolts in complete sets for both heads
• Use proper torque wrench and 12-point socket for accurate tightening
• Follow OEM or component-specific torque specs and sequence

Who is this for? The BTR TK/BOLTS02-16 kit is aimed at mechanics, hobbyists, and engine builders working on GM LS-series 5.3L–6.2L platforms who need a reliable, direct-fit replacement for worn rocker arm bolts or are upgrading valvetrain hardware during camshaft installs and engine rebuilds. If you want straightforward installation, consistent torque performance, and stronger long-term clamping than old or stretched OEM bolts, this set provides a practical, cost-effective upgrade from a trusted performance brand.