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COMP Cams 4688-1 - GM Duramax Spring Locator

COMP Cams  |  SKU: COMP-4688-1
$1299 $1429

DISCLAIMER: This Item Is Special Ordered, which may have cancellation or return restrictions. Please see our terms and conditions for more information.


AVAILABILITY: This Item Is Out Of Stock.

PLEASE NOTE: Pictures may be representative of style, rather than the actual product. Read the description for more details.

Description

COMP Cams 4688-1 - GM Duramax Spring Locator

ID Spring Locator - 1.100" OD, .470" ID, .060" Thickness

Made from hardened steel, this locator uses an inboard locating shoulder to center the seat and hold the spring in place. The 4688 seat's 1.100" OD works well with our valve springs in ." guide applications.

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.

Amazon ASIN: B002EE0EG0
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles?: Yes, but must be a race/competition only vehicle.
C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
Spring Inner Diameter: 0.72
Locator Outer Diameter: 1.1
C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965?: Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967?: Yes, but must meet tailpipe emission standards for year of vehicle.
C.A.R.B. Exempt for On-Road Vehicles?: Yes
C.A.R.B. Exemption Reason: No impact on pollution output of vehicle.
C.A.R.B. E.O. Number: N/A
Inside Diameter: .470"
Outside Diameter: 1.1
Spring Inside Diameter: .720"
Locator Thickness: .060"
Locator Inner Diameter: 0.47

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