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COMP Cams 4779-8 Seat Spacer Set for Big Block Chevrolet - 1.568" OD, .623" ID, .300" Thickness
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Enter your Engine Family Number and we will confirm whether this exact converter is street-legal for your vehicle.
Avoid stacking .300" of shims under the valve springs on your Big Block Chevrolet with our seat spacers. These spacers feature 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.
Specifications
| Outer Diameter | 1.732 IN |
| Spring Inner Diameter | 0.623 IN |
| Spring Outer Diameter | 1.568 IN |
| Thickness | 0.3 IN |
Note: See 4779-1 for a single seat spacer.
⚠️ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.
Warranty: 12 Months
Please check the product description for the manufacturer’s application details, or ask a specialist — we’ll confirm whether it fits your vehicle before you buy.
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Shipping: Free to the USA.
Orders are processed during normal business days. Delivery dates may vary by carrier and destination.
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