• Description:
  • 100% Brand New,never been use Valve Spring Specs: Max Lift: .550" Type: Single W/ Damper Valve Material: Chrome Silicon Spring Diameter: 1.250" Installed Height: 110# @ 1.700" Open Load: 285# @ 1.210" Retainer Specs: Lock Angle: 7 degree Material: 4140 chrome moly steel Notes: heat treated; black oxide finish Lock Specs: Groove: Single; square Notes: heat treated Professional Installation is Highly Recommended (No Instruction Included).   Package includes:
  • 16×Valve Spring
  • 16×Valve Spring Retainer
  • 32×Valve Locks
  • Valve Springs Kit Locks For Chevrolet SBC 327 350 400 550" w/ Steel Retainers

    Description:

    100% Brand New,never been use
    Valve Spring Specs:
    Max Lift: .550"
    Type: Single W/ Damper Valve
    Material: Chrome Silicon
    Spring Diameter: 1.250"
    Installed Height: 110# @ 1.700"
    Open Load: 285# @ 1.210"
    Retainer Specs:
    Lock Angle: 7 degree
    Material: 4140 chrome moly steel
    Notes: heat treated; black oxide finish
    Lock Specs:
    Groove: Single; square
    Notes: heat treated
    Professional Installation is Highly Recommended (No Instruction Included).
     
    Package includes:

    16×Valve Spring

    16×Valve Spring Retainer

    32×Valve Locks


    Fitment:
    This listing is for (1) complete set of valve springs for GEN I and II Small Block Chevy (not for vortec) engines.  Includes chrome moly steel retainers and heat treated locks.

     

    1.Constructed from high quality materials for a long service life
    2.Direct replacement for a proper fit every time


    Item Specifics
    Country of Origin United States
    Brand labwork
    Type Performance Valve Springs
    Color Black
    Manufacturer Part Number LP690840KS
    Items Included Valve Spring, Valve Spring Retainer, Valve Locks
    Interchange Part Number For 5.0L 5.7L GM Chevrolet sb sbc,RV943X,Small Block,Small Block
    Manufacturer Warranty 1 Year
    Fitment Type Performance/Custom
    Fitment Type Performance/Custom

    Payment

    1. We accept payment by any of the following methods:

    PayPal, afterpay, VISA, Google pay, mastercard, AMEX, apple pay, DISCOVER.

    2. Please pay as soon as possible after winning an auction, as that will allow us to post your item to you sooner!

    3. Please make sure your Ebay address is correct before you pay, cause it cannot be changed once the order shipped out.

    Shipping

    1. Item will be shipped out within 1-3 business day after clear payment received.

    2. We'll ONLY ship the item to your Ebay Confirmed Address, so please make sure your shipping address is correct before you buy item .

    3. Order placed on weekend or holiday will be shipped on Monday or next working day.

    4. Please feel free to contact us by email if you cannot get your order in time.

    Terms of sales

    1. Return to us within 30 days from the delivery date for exchange or refund. 

    2. Please feel free to contact us before you return your package!

    About us

    1.We are an honest and hard-working seller on eBay, We do not want to bring bad experience for our customers!

    2. Please give us an opportunity to solve when the problem exist, We will do our best effort to serve you.

    Contact us

    1.If you are not satisfied with our product or our Service,please feel free to contact us immediately BEFORE you leave neutral  or negative  feedback, we will try our best to resolve any problem and make you satisfied.

    2.we will reply you within 1 business day. (not include Public holiday)

    3.Work Hours: Monday to Friday.

    Shop Category
    Excellent Delivery
    Help & Info
    Payment Policy
    Shipping Policy
    Return Policy
    FAQ
    About Us
    Valve Springs Kit Locks For Chevrolet SBC 327 350 400 550" w/ Steel Retainers
    Item Specifics
    Country of Origin :United States
    Brand :labwork
    Type :Performance Valve Springs
    Color :Black
    Manufacturer Part Number :LP690840KS
    Items Included :Valve Spring, Valve Spring Retainer, Valve Locks
    Interchange Part Number :For 5.0L 5.7L GM Chevrolet sb sbc,RV943X,Small Block,Small Block
    Manufacturer Warranty :1 Year
    Fitment Type :Performance/Custom
    Fitment Type :Performance/Custom


    1. We accept payment by any of the following methods:

    PayPal, afterpay, VISA, Google pay, mastercard, AMEX, apple pay, DISCOVER.

    2. Please pay as soon as possible after winning an auction, as that will allow us to post your item to you sooner!

    3. Please make sure your Ebay address is correct before you pay, cause it cannot be changed once the order shipped out.

    1. Item will be shipped out within 1-3 business day after clear payment received.

    2. We'll ONLY ship the item to your Ebay Confirmed Address, so please make sure your shipping address is correct before you buy item .

    3. Order placed on weekend or holiday will be shipped on Monday or next working day.

    4. Please feel free to contact us by email if you cannot get your order in time.

    1. Return to us within 30 days from the delivery date for exchange or refund. 

    2. Please feel free to contact us before you return your package!

    1.We are an honest and hard-working seller on eBay, We do not want to bring bad experience for our customers!

    2. Please give us an opportunity to solve when the problem exist, We will do our best effort to serve you.

    1.If you are not satisfied with our product or our Service,please feel free to contact us immediately BEFORE you leave neutral  or negative  feedback, we will try our best to resolve any problem and make you satisfied.

    2.we will reply you within 1 business day. (not include Public holiday)

    3.Work Hours: Monday to Friday.


    All rights reserved.



    On Mar 21, 2026 at 19:18:03 PDT, seller added the following information:

    Datacaciques