Page 209 - 2018 Racecar Engineering Drag Racing Parts and Accessories Catalog

Valve Spring Seat Cups And Locators Valve Spring Height Micrometers
Comp Cams’ spring seat cups and Measure valve spring installed height easily
locators can withstand the ex treme and quickly. Accurate instrument fits in place of
spring pressures and high RPM gener- valve spring and can be expanded until the valve,
ated by modern race engines. Hardened spring, locks and retainer are firmly seated.
alloy seats protect the head and shim. Part No. Description
They also locate and hold the spring in place. Sold in sets of 16. COM4929 1.600"-2.200" Range Height Micrometer
Fits Spring Fits Spring COM4930 1.600"-2.200" Range Height Micrometer,
Part No. Description Thk. ID OD OD ID For Beehive Springs
COM4690-16 Spring Locator .120" .780" 1.253" N/A .878"
COM4693-16 1 Spring Locator .060" .570" 1.300" N/A .800" Valve Spring Seat, Cup
COM4694-16 2 Spring Locator .060" .570" 1.450" N/A 1.000"
COM4695-16 Spring Locator .060" .520" 1.300" N/A .640" Valve Guide Cutters And Arbors
COM4696-16 Spring Locator .060" .570" 1.510" — .970" Handy tools help engine builders machine
COM4700-16 Spring Seat Cup .060" .640" 1.680" 1.550" — cylinder heads for larger-than-stock valve springs
COM4702-16 Spring Seat Cup .060" .640" 1.740" 1.650" —
COM4704-16 Spring Seat Cup .060" .640" 1.580" 1.475" — or PTFE valve seals. Arbor/pilots are available in
COM4705-16 Spring Locator .060" .570" 1.300" — .875" three sizes and must be used with each cutting
COM4708-16 Spring Seat Cup .060" .640" 1.780" 1.690" — tool. Arbor/pilots will also work with valve guide
COM4770-16 Spring Locator .060" .585" 1.500" — .690" cutters used for shortening the valve guide when
COM4771-16 Spring Locator .060" .570" 1.550" — .690" installing a high lift cam.
COM4772-16 Spring Locator .060" .570" 1.550" — .750"
COM4773-16 Spring Locator .060" .630" 1.550" — .750" Part No. Description Cuts Guide
COM4774-16 Spring Locator .060" .570" 1.625" — .765" COM4715 Valve Guide Cutter .500"
COM4776-16 Spring Locator .060" .570" 1.550" — .790" COM4718 1.440" Spring Seat Cutter .630"
COM4777-16 Spring Locator .060" .630" 1.550" — .790" COM4719 1.550" Spring Seat Cutter .630"
COM4778-16 Spring Locator .060" .570" 1.550" — .730" COM4720 1.580" Spring Cup Cutter .630"
COM4780-16 Spring Locator .060" .630" 1.550" — .730" COM4722 1.680" Spring Cup Cutter .630"
COM4781-16 Spring Locator .060" .570" 1.550" — .715" COM4724 1.740" Spring Cup Cutter .630"
COM4782-16 Spring Locator .060" .630" 1.550" — .715" COM4725 .485" Valve Guide Cutter .485"
COM4783-16 Spring Locator .060" .630" 1.550" — .690" COM4726 .530" Valve Guide Cutter .530"
COM4784-16 Spring Locator .060" .570" 1.550" — .735" COM4729 Rocker Stud Boss Cutter N/A
COM4785-16 Spring Locator .060" .570" 1.550" N/A .810" COM4730 5/16" Arbor/Pilot N/A
COM4786-16 Spring Locator .060" .570" 1.635" — .870" COM4732 11/32" Arbor/Pilot N/A
1: Designed for COM26981 beehive springs. COM4733 1.440" Spring Seat Cutter .560"
N/A
COM4734
3/8" Arbor/Pilot
2: Designed for COM26986 or COM26995 beehive springs.
Valve Spring Shims BB Chevy Valve Seat Spacer Kit
Comp Cams spring shims are man u-
fac tured from the highest quality shim COM4779-8
stock and are heat treated to withstand the punish- Kit is designed to eliminate rotat-
ment from modern race engines. Shims must be used ing retainers located on the exhaust
to equal ize the installed height of the valve spring when setting. valves of late model big block Chevys.
Sold in sets of 16. Eliminates the stacking of over .300" of
shims under the valve spring. Spac-
Part No. Thickness OD ID Quantity
COM4736-16 .015" 1.250" .814" 16 ers properly locate the spring in the seat and
COM4737-16 .015" 1.437" .645" 16 prevent it from “walking”.
COM4738-16 .015" 1.480" .765" 16
COM4739-16 .015" 1.500" .645" 16
COM4740-16 .015" 1.640" .635" 16
COM4742-16 .030" 1.250" .814" 16
COM4743-16 .030" 1.437" .645" 16
COM4744-16 .030" 1.480" .765" 16 Valve Train Assembly Spray COM106
COM4745-16 .030" 1.500" .645" 16
COM4746-16 .030" 1.640" .635" 16 Lubricant clings to components to protect
COM4750-16 .060" 1.480" .765" 16 valve springs, rocker arms and pushrods at
COM4751-16 .060" 1.500" .645" 16 initial start-up.
COM4752-16 .060" 1.640" .650" 16 Ground
Shipment
Valve Spring Shim Variety Packs Only
Part No. Thickness OD Quantity
COM4753 .015", .030", .060" 1.250" 16 Each Size
COM4754 .015", .030", .060" 1.437" 16 Each Size
COM4755 .015", .030", .060" 1.480" 16 Each Size
COM4756 .015", .030", .060" 1.640" 16 Each Size
COM4757 .015", .030", .060" 1.500" 16 Each Size

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