Australia-wide shipping on performance, 4x4 and vehicle-specific upgrades.

COMP Cams Super Valve Locks 5/16in W/Rec

SKU: CCA618-16

Valve Locks

CCA Valve Lock Sets...

COMP Cams Super Valve Locks 5/16in W/Rec

SKU: CCA618-16

Valve Locks

CCA Valve Lock Sets...

A$78.71
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
View cart
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

These Steel Super Locks featuring a lash cap recess, 10&deg

Product Overview

Most people believe that the tang inside a valve lock holds the retainer and valve spring in place while the engine is running, but this isn’t the case. The cross-section of material in the tang is not strong enough to withstand open spring loads of 1000 lbs. or more. The sole purpose of the tang is to temporarily locate the lock, retainer and spring relative to the valve until the taper of the retainer can nest around the outside surface of the lock. This creates a “collet” effect that binds the two together. The more spring force exerted on the retainer (as the valve opens), the more force applied by the “collet” effect to keep the retainer and lock in place. With the emergence of valve sizes other than the standard 5/16", 11/32" and 3/8", it is important to make sure the valve locks match the valve size. There should always be a small gap between the two halves of the lock when they are properly positioned on the valve stem. If the two halves fit together without a gap, they are too large. If the locks fit tight to the stem and leave a gap between the middle of the lock and the O.D. of the stem, the locks are too small. Our line of stock replacement 7° valve locks for stock engine rebuilds are recommended only for street applications with lighter valve spring loads and are stamped and hardened for superior wear resistance. Also available are machined 7° locks and titanium Super 7º Locks for some applications. They offer the same valve spring location accuracy as our Super Locks™ without the need to change to 10° retainers.

Product Details

Adjusted Installed Height:0
Amazon ASIN:B000CIUDIE
C.A.R.B. E.O. Number:N/A
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 Federally Certified Vehicles Manufactured Before 1967?: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. Exempt for Racing and Off-Road Only Vehicles?:Yes, but must be a race/competition only vehicle.
C.A.R.B. Exemption Reason:No impact on pollution output of vehicle.
California Proposition 65:WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Description:Set of 16 - 10 Degree, .310", Single Groove Locks w/ Lash Cap Recess
Lash Cap Recess:Yes
Lock Angle:10°
Lock Series:Super Locks
Part Number:cca618-16
Title:Set of 16 - 10 Degree, .310", Single Groove Locks w/ Lash Cap Recess
Valve Stem Diameter:0.31
Valve Stem Size:.310"

Part Type

Engine Valve Spring Retainer Keeper Kit

Data: v4.2 - Upd: 2026-10-13 17:46:12

Specifications

Product Attributes - Brand
COMP Cams
Product Attributes - Manufacturer's Part Number
618-16
Product Attributes - Part Type
Valve Locks
Product Attributes - Product Line
COMP Cams Super Valve Locks
Product Attributes - UPC
036584160298
Product Attributes - Valve Stem Diameter (in.)
0.310 in.
Product Attributes - Valve Stem Diameter (mm)
7.87mm
Product Attributes - Lock Style
10 degree
Product Attributes - Lock Groove Quantity
1-groove
Product Attributes - Lock Material
Hardened steel
Product Attributes - Manufacturing Process
Machined
Product Attributes - Recessed for Lash Cap
Yes
Product Attributes - Quantity
Sold as a set of 32.
Product Attributes - Notes
32 pieces, enough to do 16 valves.

Reference Information

Brand Name/s Comp Cams
StreetFX SKU cca618-16
SFX Item ID 4120895
Supplier Item Code 4120895
Manufacturer SKU 618-16
Manufacturer UPC 36584160298
Alternative References COM618-16, CPC618-16, 5/16in

Compatibility

Loading compatibility information...

Keep shopping

More from Comp Cams