COMP Cams ID Spring Seats Eb 1.5 X 630 - Set of 100

These COMP Cams ID Spring Seats are made from a hardened steel alloy, a smart choice for engines running extreme spring pressures and high RPMs, like those found in racing applications. Standard shims alone can't handle that kind of stress. These seats do more than just protect your cylinder head and shim from damage; they also help keep the valve spring properly located, which is crucial for consistent performance.

What's neat about this particular design is the I.D. locator. Unlike older styles that required significant machining to fit an outer cup, these seats have the locating shoulder on the inside. This means they fit right into the spring cup and help center the spring from the inside diameter. This set includes 100 seats, each measuring 1.540 inches in outside diameter, 0.640 inches in inside diameter, and a thickness of 0.060 inches. They're a well-built solution for ensuring your valve springs stay put, even when you're pushing the engine hard.