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PAC Racing 600 Series Valve Spring Retainers PAC-R672
Part Number: RSC-PAC-R672
PAC Racing 600 Series Valve Spring Retainers
RETAINER PACALOY SPRING
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Estimated Ship Date: Oct 26, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
PAC-R672
Part Type:
Product Line:
Summit Racing Part Number:
RSC-PAC-R672
UPC:
193564540188
Outside Diameter of Outer Spring (in.):
1.370 in.
Retainer Material:
Tool steel
Lock Style:
8 degree
Valve Spring Style:
Standard
Retainer Style:
Standard
Number of Springs Per Valve:
Dual
Outside Diameter of Middle Spring (in.):
1.041 in.
Inside Diameter of Inner Spring (in.):
0.710 in.
Locks Included:
No
Quantity:
Sold individually.
PAC Racing 600 Series Valve Spring Retainers
PAC Racing 600 Series valve spring retainers are the latest developments from PAC Racing Springs. These retainers feature ultra-lightweight designs from proprietary valve spring-type alloys. PAC Racing's sophisticated processing, such as micro-polishing and Nano Peen technology, are used to enhance retainer life. The high hardness of the steel provides higher wear resistance properties to offer superior abrasion resistance and improved fatigue strength, while also reducing weight. PAC Racing 600 Series valve spring come with a reduced step and need to be combined with a matching seat (where applicable) to optimize the performance of the valvetrain.
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Some parts are not legal for use in California or other states with similar laws / regulations
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