66784 Stud Mount Valve Spring Compressor

Fitment
Universal fit for all 3/8" and 7/16" rocker studs.

Function
Specially designed for compressing valve springs with the cylinder head on block.
Simplifies between-rounds valve spring changing, saving your time and money.
Remove valve spring from assembled engine for checking or replacing, quickly and easily press down to compress coil springs, then remove valve keepers.

Features
1. Made of standard heavy duty steel, rubber grip handle, sturdy and durable, anti-rust, anti-corrosion, high reliability and performance, long service lifetime.
2. 360° rotating handle, compress and lock the spring down to desired height, and remove the handle when removing or installing keepers.
3. Using the principle of leverage, press down to compress coil spring, then remove the valve keepers, loosen it slowly, then remove the valve spring.