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*NEW* Drop in style Beehive Valve Spring Kit, SBF GT40, For Moderate Hyd Roller Performance Cams

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Product Description

Beehive Spring Kit for GT40

Beehive Spring Kit for SB Ford w/ Moderate Performance Cams

Fitment: GT40 SB Ford

Once again, we're expanding our drop in style kits for SB Ford. Here is another drop in style beehive spring kit for GT40 heads.

This version is for moderate hyd roller cams with up to .580" lift. Works well with high ratio rocker arms.

We put this kit together for street performance enthusiasts interested in upgrading to HP beehive springs w/ light weight retainers.

Use for cams between 218-226 degrees duration @ .050" (on the intake, higher duration figures are allowed on the exhaust) For bigger cams, take a look at our other spring kits. Works with Ford's B, E & F cams as well as many other street performance profiles.

Works with SB Ford's GT40's staggered tip length valves as well as .393"/.393" aftermarket valves. (For .393"/.393", use check box towards the top of page)

These beehives fit right onto the stepped spring base of GT40 heads without the need for machine work; also known as a "drop in fit".

The springs are manufactured using premium grade multi arc "ovate" wire and are made here in the USA.


      Check out the features:

  • Manufactured from Multi Arc Ovate Wire.
  • Made in the USA.
  • Seat Pressure: 135 Lbs
  • Maximum available Lift: .580"
  • Parts included are: Chrome Moly Retainers, Beehive Springs and Hardened 7 degree locks.
  • Fits factory staggered tip length valves used on OE GT40 heads (kits can also be ordered to fit aftermarket .393"/.393" tip length valves )
  • Spring seat machining is not necessary, the spring fits right onto an OE SB Ford stepped spring base.


      Add-On Options:

  • Premium Viton Valve Seals (Our premium viton valve seals are the finest available anywhere. Why settle for a gasket company seals?)
  • Hardened Spring Shim Pack, Includes: 16 each of: .030" and .015" shims
  • If required, order the kit to work with .393"/.393" tip length valves. Use this option for Ford racing valves w/ .383"/.383" tip length valves.



       Average Load Specifications:

  • Seat Load: 135 Lbs @ 1.700" (Valve Closed)
  • Open Load @ .440" Lift- 262 Lbs
  • Open Load @ .475" Lift- 274 Lbs
  • Open Load @ .500" Lift- 282 Lbs
  • Open Load @ .525" Lift- 290 Lbs
  • Open Load @ .550" Lift- 298 Lbs
  • Open Load @ .580" Lift- 306 Lbs


      Size and Other Specifications:

  • Small End ID- .651"
  • Small End OD- 1.055"
  • Large End ID- 1.000"
  • Large End OD- 1.410"
  • Solid Height- 1.060"
  • Spring Rate: 294 Lbs/inch
  • .580" Lift Range


 This kit is currently being offering at a discounted price. Pick up a custom built beehive spring kit for around the same price the other guys charge for their beehive springs alone!

 Our customers know we're serious about spring kits. Our quality can be compared to parts selling for well over twice the price and we continue to step up our game with improvements in materials and design. When you order from us, you're getting the best possible valve train value available.

 Average shipping delay is around 7 days after order date. If you need it quicker, be sure to order early or contact us about rush order costs/options.



Alex's Parts~ Excellent value in valve train parts .



















































     Questions & Answers:

  • Q- How important is it to measure valve spring installed heights?
  • A- Setting up installed heights is important for the following reasons:
  1. Measuring installed heights will assure the intended seat and open loads are achieved.
  2. If the installed heights are not measured, how can the builder be sure they are correct?
  3. On a staggered tip length application (like SBF Gt40/P), what if the builder mixes up the retainers and locks and installs them in a reverse orientation? If any of the parts are mixed up, it could create serious problems. If installed height measurements are taken, the builder would easily find these mistakes and correct them before final assembly.
  4. Builders who want maximum performance will always measure their installed heights and add shims as needed to get the installed heights as close as possible to the target spec card included.


  • Q- How close do I need to get the installed heights to the target height spec?
  • A- As close as you can with a tolerance of minus .015" to target height. In order to improve installed height accuracy and if it's possible, it's wise to set it up between .005"-.008" on the low side of the target height. Once the engine is run, the locks will seat further into the retainer. This is a natural process, 7 degree hardware will wedge tight together and as this happens, the installed height will increase a very small amount so it's better to lean on the lower side of target height.


  • Q- Will I need an installed height micrometer to set up the installed heights?
  • A- Yes, in order to set up installed heights, an installed height micrometer intended for beehive springs and one which is compatible with OE type SB Ford heads is required.


  • Q- We have a beehive installed height mic which we used on another application- will it work on my SB Ford heads?
  • A- That depends on the brand and model of the mic. Many height mics designed for beehive springs are made for LS Chevy or aftermarket heads which won't fit a stepped SB Ford spring base.


  • Q- How can I determine if the beehive mic we already have will work on a SB Ford?
  • A- Just measure the opening (bore) on the bottom of the mic. If the inside diameter measures at least 1.010", it should work. (see pictures below)


  • Q- Can I measure the installed heights with a machinist scale, snap gauges or calipers?
  • A- Negative, this is not a viable option when using beehive retainers for the following reasons.
    Using calipers, snap gauges or a machinist scale only work when the measurement is taken parallel to the valve stem, not at an angle. Since a SB Ford's stepped spring base is bigger than the retainer, it cannot be easily measured straight up and down.


  • Q- My existing installed height Micrometer has a stepped top surface which the beehive retainer enters into and contacts the bottom of the step below. The readings I'm getting are .150"+ more than my target installed height. Whats going on and how do I deal with this?
  • A- This condition happens when an installed height mic designed for larger OD retainers is used with a beehive set up. On common "cylindrical spring" installed height mic's, the shape of the top of the mic is intended to clear the first step used on bigger retainers. Most beehive retainers are too small for Std installed height mic's and will fall into the counter bore which produces an inaccurate measurement.


  • Q- How do I determine if the top side of my mic will work with a typical beehive retainer?
  • A- Just measure the inside diameter of the topside of the mic and compare it to the OD of the retainer. The retainer must sit on the top surface of the mic and not inside its counterbore.


  • Q- Do I need hardened shims?
  • A- Yes. Std shims are too soft and will break down during use. Std shims should not be used because as they wear down, fine metal particulate will contaminate the oil.






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