Product Description
BTR Brian Tooley Racing Valve Spring Installed Height Mic for LS/LT Engines
For 1.300-Inch Dual Valve Springs | 0.100-Inch Height Change Per Revolution
Accurately measure valve spring installed height with the BTR Brian Tooley Racing Valve Spring Height Mic for compatible LS and LT engines. Designed for the 1.300-inch-diameter dual valve springs commonly used with aftermarket camshafts, this purpose-built tool combines an easy-to-read laser-etched scale, a black background and a finger-friendly adjustment top to simplify valvetrain setup.
Key Features & Benefits
- 0.100-Inch Change Per Revolution: Each complete revolution changes the measured height by 0.100 inch, creating a straightforward relationship between rotation and measurement. This design reduces the potential reading errors associated with height mics that change only 0.050 inch per revolution.
- Finger-Grip Adjustment Top: The unique top features molded indentations that provide convenient contact points for your fingers. This design makes the mic easier to grip and tighten within the valve spring location than the industry-standard knurled adjustment tops found on competing tools.
- High-Visibility Laser-Etched Scale: Measurement markings are laser etched over a contrasting black background for improved visibility. The clear scale helps the user identify the installed-height reading while working around the cylinder head and surrounding valvetrain components.
- Designed for 1.300-Inch Dual Springs: The BTR height mic is designed for the 1.300-inch-diameter dual valve springs commonly installed on Chevrolet Gen III through Gen V LS and LT engines using aftermarket camshafts and hydraulic-roller valvetrain combinations.
- Cost-Conscious Valvetrain Measuring Tool: BTR developed this valve spring height mic as a more affordable alternative to the previously available option, offering the redesigned adjustment top, clearer measurement scale and 0.100-inch-per-revolution operation at approximately 50% less cost.
Key Fitments
- For use on LS/LT Engines using Hydraulic Roller Valve Springs
- Chevrolet Gen III-Gen V engines using compatible 1.300-inch-diameter dual valve springs
- Works on: LS1 LS2 LS3 LS6 L99 LSA L92 L9H L94 LS2 L76 L77 LY6 L96 LFA LZ1 LY5 LMG LMF LH6 LC9 LY2 L20 L33 LQ4 LQ9 LR4 LM7 L59 LS4 LH8 LH9 LT1 L83 L86 L84 L87 L8B
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Valve spring height mic.
Very nice tool works great. Very well made. As are all things from Michigan Motorsports.
