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LS1 SERIES DROP IN VALVE SPRING KIT, GEN III, IV VORTEC HP SPRING KIT

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Price:
$121.50
SKU:
Vsk3L43-Q
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Product Description

LS SERIES HIGH PERFORMANCE VALVE SPRING KIT

LS SERIES GM GEN III VORTEC ENGINES

DROP IN FIT

GM used these engines in countless vehicles, cars and trucks alike.

LS series, LQ,  Gen III SBC Vortec variations, 4.8 - 6.0

Those interested in installing a performance cam are faced with either high priced aftermarket beehive springs or expensive dual spring kits.

Stock GM beehive springs are super wimpy, simply of no use with most aftermarket performance cams.

This kit was designed to replace those stock beehive springs perfectly, pretty much a drop in install.

Our springs offer the desired 130 Lbs valve closed seat pressure (150% more then stock) and crank out 350 Lbs open pressure which are good "target"  pressures for many high performance street cams.

Installation can be performed with heads either on or off the vehicle.

Our kit parts are designed to replace the stock springs, retainers and locks.

Alex's springs have the same base diameter foot print so they replace the stock springs without incident. No special locators or spring base needed, use what’s there.

Another nice feature is our retainer design. Not only is it a lightweight profile but it typically will produce the correct installed height right out of the package.

A custom engineered kit designed, tested & distributed by a trustworthy source, Alex's Parts.

FEATURES:

  • Quality Components
  • High Output Springs will handle a wide range of popular performance cams
  • Accepts up to .590" lift when set to our recommended installed height

The cost of this kit is less than a set of 26918 beehive springs alone.

Great for mild to moderate aftermarket Hyd roller cams.

     Fits:

  • 4.8
  • 5.3
  • 5.7
  • 6.0
  •  LS Series
  • Gen III Vortec Engines

     Kit includes:

  • 16 Drop In High Performance, straight wall valve springs
  • 16 Lightweight Chrome Moly Steel Retainers
  • 16 Hardened 7 Degree Valve Locks

     Spring Specs:

  • 1.265" OD
  • .880" ID
  • 130 Lbs @ 1.790" -Valve Closed, Spring Installed Height
  • 314 Lbs @ .500" lift
  • 335 Lbs @ .550" lift
  • 351 Lbs @ .590" lift
  • Rate#  368
  • Average Coil Bind @ 1.130"
  • Max lift- .590"

Retainer Specs:

  • 1.230" OD
  • .865" Inner Step
  • Thickness from top to bottom- .335"
  • 7 Degree
  • Offers improved clearance between retainer & seal
  • Heat Treated Chrome Moly Steel
  • Weighs 18.5 Grams!

Hardened Valve Locks:

  • Forged & Hardened Locks
  • Suitable for Increased Spring Pressures

 

Will not fit SB Chevy or Ford engines running 11/32" stem valves.

 

Recommendations: Upon installation, it's smart to replace the valve seals. Since you're in there, installing new valve seals is cheap insurance. We carry both, early "press on" blue viton seals (.499" X 8mm) and late model viton "Hat" style seals.


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