🔧 Yoursme 66784 Stud Mount Valve Spring Compressor for 3/8" & 7/16" Rocker Studs - Remove & Install Valve Spring Review

May fit with standard springs but tried on dual springs and forks on tool and tool handle bent. Not recommended when working with performance heads.

This valve spring compressor is great for replacing valve springs without removing cylinder heads, using compressed air to hold valves in place. Works with 7/16" and 3/8" rocker pins. Looks and works the same as a better brand spring compressor. They're both made in China, so who knows, maybe they're from the same factory. It remains to be seen how well they perform when used with extremely stiff cam-level full roller springs.

This tool is well designed or copied from someone else's good design. It's fairly easy to use, and thanks to the longer handle, it doesn't require a lot of force to compress the valve springs. I used it to rebuild a set of Chevy 350 heads. The main problem I had was the tooling not being properly assembled at the factory. I took two screenshots of the product images for the listing. One shows correct assembly, the other shows incorrect assembly preventing the tool from locking. The first (white