Proper Pushrod Diameter
When checking for pushrod diameter you need to first establish the length needed. Then you must turn the engine over manually to check for tight clearance areas by the Cylinder Head, Lifer Bar and other close tolerance areas. We prefer .010 thousands at the Cylinder Head and .020 at the Lifter and Lifter Bar.
We prefer you to fit the largest pushrod you can in the area you have to work with. Sometimes small modifications need to be made.
This 4 Piece Sleeve Checking Kit with allow you to check pushrod clearance at the port hole and lifter body to be checking with ease!
With these tools you can design the largest diameter pushrod within the confinements of your specific engine combination.
Bigger is better when it come to pushrods! Natural frequency and strength are greatly increased with diameter.
Used the o-rings supplied to hold the sleeve in position.