SKU: SKU: CCA4779-1
Seat Spacer for Big Block Chevrolet - 1.568" OD, .623" ID, .300" Thickness
Avoid stacking .300" of shims under the valve spring on your Big Block Chevrolet with our seat spacer. This spacer features a 1.732" outer diameter for 1.568" outer diameter springs.
The old standard shims will not hold up to the extreme spring pressures and high RPM in today's race engines. COMP Cams offers a simple but effective solution to this problem. These Valve Spring Locators provide a thin, hardened Steel alloy seat that will not only protect the head and shim, but also locate and hold the spring in place. Previously, this part has been available only in a cup form with the retaining portion being on the outside of the part. This required that the head be machined a great deal to accept this cup so COMP now offers an ID locator with the locating shoulder on the inside, as well as the spring cup.
Late model Big Block Chevrolet engines are originally equipped with exhaust valve rotators. Until now, the only way to make up for the rotator was to stack .300" of shims under the spring. This was not only sloppy, but they also didnt fit well. These seat spacers offered by COMP Cams will locate the spring with an outside step so the spring cannot walk around on the head.
The COMP Cams Sprint Car Front Drive Kit for LS Engines bolts to RHS LS Race, other aftermarket and GM LS blocks with no modifications necessary. It is the first and only fully engineered, bolt-on assembly that provides a proper and reliable solution for cam thrust bearings, distributor/magneto, oil pump, water pump, camshaft/crank sensors and gear drive. Designed and proven for racing duty, the unique piece also features oil passages that provide oiling directly to gears and bearings.
Late model Big Block Chevrolet engines are originally equipped with exhaust valve rotators. Until now, the only way to make up for the rotator was to stack .300" of shims under the spring. This was not only sloppy, but they also didnt fit well. These seat spacers offered by COMP Cams will locate the spring with an outside step so the spring cannot walk around on the head.
The COMP Cams Sprint Car Front Drive Kit for LS Engines bolts to RHS LS Race, other aftermarket and GM LS blocks with no modifications necessary. It is the first and only fully engineered, bolt-on assembly that provides a proper and reliable solution for cam thrust bearings, distributor/magneto, oil pump, water pump, camshaft/crank sensors and gear drive. Designed and proven for racing duty, the unique piece also features oil passages that provide oiling directly to gears and bearings.