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SB Ford, GT40 Drop In Valve Springs Kit, Hyd Flat Tappet Cam Applications

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Product Description

Fits Factory Heads, no machining required.

Performance Valve Spring Kit for SB FORD GT40

Application: Hydraulic Flat Tappet cam applications

Fitment: GT40 302 heads (for GT40P kits, check our other listings)


This version is for SB Ford GT40 w/ Hyd Flat Tappet cams

Use for cams w/ up to 226 degrees @ .050"

As a heavy duty upgrade, this can also be used for applications running stock cams.

Comes with parts to fit the staggered tip length valves used in SB Ford GT40 heads.


Suitable for 1.6 and 1.7 ratio rocker arms as long as the lift does not exceed .555" lift.



      Average Spring Specifications:

  • Spring Type- HP Single w/ Damper
  • Machine work required?- NO
  • 1.460" Outside Diameter
  • I.D.- Fits over stock .990"-.997" Register / Step
  • 110 Lbs @ 1.815" Valve Closed Installed Height (see *note towards bottom on page)
  • 264 Lbs @ .500" Lift
  • 284 Lbs @ .555" Lift




     Kit includes:

  • Eight Intake Retainers, labeled for easy identification
  • Eight Exhaust Retainer, labeled for easy identification
  • 32 Hardened Valve Locks
  • 16 Drop in springs
  • Spec Sheet
  • Installed height Specifications




  • Staggered tip length SB Ford GT40 heads


Buyers can add: Shims and/or Seals by checking the boxes towards the top of the page. These items are added in at slightly discounted prices with reduced shipping rates.


*Note: Kit installed height may differ from advertised spec listed above. Each kit comes with it's own installed height specification card. Please use the installed height specifications included with your kit.


Note: This kit is for hyd flat tappet cams,






Alex's Parts- The smart choice in valve train parts~

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