- Cams & Valvetrain
- Valve Spring Shims, Spacers & Seats
Valve Spring Shims, Spacers & Seats
Installing valve springs properly and at the correct height is critical in order for proper engine operation and to maximize performance. If the valve springs are installed too tight, coil bind will result, causing valvetrain failure. If they are installed too loosely, they can cause increased heat that will lead to faster wear and valvetrain part failure as well. JEGS offers cylinder head service parts, including valve spring components, from top manufacturers such as AFR valve spring shims, Moroso, Dart valve spring shims, COMP Cams, JEGS valve spring shims, and more. View our wide selection of valve spring shims, shim spacers, and valve seats that will help complete your next valvetrain project in your street or race engine.