PAC Racing 600 Series Valve Spring Retainers PAC-R650

Name: PAC Racing 600 Series Valve Spring Retainers
Brand: PAC Racing Springs
SKU: RSC-PAC-R650
Price: 27.79 USD
Availability: InStock
Rating: 0 (0 reviews)

Write the First Review

Part Number: RSC-PAC-R650

$27.79

PAC Racing 600 Series Valve Spring Retainers

Dual Spring 600 Series Retainer - Tool Steel Retainer for RPM Series Dual Valve Springs. Lock angle: mini 8
See More Specifications | Check the Fit

PAC Racing 600 Series Valve Spring Retainers PAC-R650

RSC-PAC-R650

Not Yet Reviewed

Part Number: RSC-PAC-R650

Estimated Ship Date: Nov 9, 2026

$27.79

Overview

Applications

Q&A

Estimated Ship Date: Nov 9, 2026 Would you rather pick it up?

PAC Racing 600 Series Valve Spring Retainers PAC-R650-16

Not Yet Reviewed

Estimated Ship Date: Dec 31, 2026

...Loading

Overview

Brand:

PAC Racing Springs

Manufacturer's Part Number:

PAC-R650

Part Type:

Valve Spring Retainers

Product Line:

PAC Racing 600 Series Valve Spring Retainers

Summit Racing Part Number:

RSC-PAC-R650

Item Number:

3071310

Outside Diameter of Outer Spring (in.):

1.250 in.

Retainer Material:

Titanium

Lock Style:

8 degree

Valve Spring Style:

Standard

Retainer Style:

Standard

Number of Springs Per Valve:

Dual

Inside Diameter of Inner Spring (in.):

0.600 in.

Locks Included:

Quantity:

Sold individually.

Notes:

Uses Mini 8 valve locks. Recommended for use with RPM series dual springs.

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.

Applications