BTR Adjustable Pushrod Length Checking Tool #BTR-PRC2
Measure Twice. Order Once.
Choosing the correct pushrod length is one of the most overlooked, but most critical steps when setting up your valve-train. Whether you're installing a new camshaft, changing cylinder heads, milling the heads or block, upgrading rocker arms, or simply chasing the perfect valve-train geometry, guessing at pushrod length can cost horsepower, accelerate component wear, or even lead to catastrophic valve-train failure.
The Brian Tooley Racing Adjustable Pushrod Length Checking Tool takes the guesswork out of the equation by allowing you to accurately determine the exact pushrod length your engine requires before ordering your final pushrods.
Designed with a wide adjustment range of 7.800" to 8.800", the BTR-PRC2 covers virtually every common LS and Gen V LT engine combination, from mild street builds to aggressive head and cam packages.
Why Correct Pushrod Length Matters
Proper pushrod length affects far more than simply achieving valve lash. It directly influences:
Rocker arm sweep across the valve tip
Valve guide wear
Valve stem side loading
Hydraulic lifter preload
Valvetrain stability at high RPM
Overall engine reliability
Even small changes, including head milling, block decking, aftermarket lifters, different base circle camshafts, valve jobs, or rocker arm upgrades, can alter the required pushrod length enough to justify measuring before final assembly.
Features
Adjustable from 7.800" to 8.800"
Precision-machined steel construction
Easy lock-nut adjustment
Compatible with both LS and Gen V LT engine families
Reusable for future engine builds
Eliminates costly guesswork when ordering custom pushrods
How do I use this thing?
Great question… Check out THIS VIDEO LINK from our engine builder and partner in crime in the 2026 Camshaft Shootout, Flag Motorsports.
GMS Notes
At Griffin Motorsports, we never recommend assuming your pushrod length. While many combinations end up using common lengths, every engine stack-up is slightly different due to manufacturing tolerances and aftermarket components. Spending a few minutes measuring your valvetrain geometry can prevent premature guide wear, incorrect lifter preload, poor rocker geometry, and unnecessary headaches down the road.
Already know your required length? Pair this tool with our premium BTR Chromoly Pushrods for a valvetrain package that's built to handle everything from daily driving to serious boost, road racing, and high-RPM abuse.
BTR Adjustable Pushrod Length Checking Tool #BTR-PRC2
Measure Twice. Order Once.
Choosing the correct pushrod length is one of the most overlooked, but most critical steps when setting up your valve-train. Whether you're installing a new camshaft, changing cylinder heads, milling the heads or block, upgrading rocker arms, or simply chasing the perfect valve-train geometry, guessing at pushrod length can cost horsepower, accelerate component wear, or even lead to catastrophic valve-train failure.
The Brian Tooley Racing Adjustable Pushrod Length Checking Tool takes the guesswork out of the equation by allowing you to accurately determine the exact pushrod length your engine requires before ordering your final pushrods.
Designed with a wide adjustment range of 7.800" to 8.800", the BTR-PRC2 covers virtually every common LS and Gen V LT engine combination, from mild street builds to aggressive head and cam packages.
Why Correct Pushrod Length Matters
Proper pushrod length affects far more than simply achieving valve lash. It directly influences:
Rocker arm sweep across the valve tip
Valve guide wear
Valve stem side loading
Hydraulic lifter preload
Valvetrain stability at high RPM
Overall engine reliability
Even small changes, including head milling, block decking, aftermarket lifters, different base circle camshafts, valve jobs, or rocker arm upgrades, can alter the required pushrod length enough to justify measuring before final assembly.
Features
Adjustable from 7.800" to 8.800"
Precision-machined steel construction
Easy lock-nut adjustment
Compatible with both LS and Gen V LT engine families
Reusable for future engine builds
Eliminates costly guesswork when ordering custom pushrods
How do I use this thing?
Great question… Check out THIS VIDEO LINK from our engine builder and partner in crime in the 2026 Camshaft Shootout, Flag Motorsports.
GMS Notes
At Griffin Motorsports, we never recommend assuming your pushrod length. While many combinations end up using common lengths, every engine stack-up is slightly different due to manufacturing tolerances and aftermarket components. Spending a few minutes measuring your valvetrain geometry can prevent premature guide wear, incorrect lifter preload, poor rocker geometry, and unnecessary headaches down the road.
Already know your required length? Pair this tool with our premium BTR Chromoly Pushrods for a valvetrain package that's built to handle everything from daily driving to serious boost, road racing, and high-RPM abuse.
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