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Product Information

Valve springs for the 5.0 Coyote in the 2011-2017 Ford Mustang GT and Boss 302 and the 2011-2017 Ford F-150. COMP Cams rates this kit for cams up to .550 inch lift. If a cam swap is on the list, the springs come with it.

Why Upgrade to a Rated Spring Kit

Per COMP Cams, here is the spec sheet on this kit:

  • Rated to .550 inch max lift, so you know the ceiling before you pick a cam.
  • 93 lbs on the seat at 1.57 inch installed height, 198 lbs open at 1.02 inch. Those are the numbers to hand your engine builder.
  • Spring rate is 191 lbs per inch.
  • Coil bind at .952 inch. Measure your lift against it and you know your margin before the covers go back on.
  • Outer diameter runs .959 inch at the top and 1.061 inch at the bottom, inner diameter .636 inch top and .738 inch bottom. Check those against your retainers and seats before you order.

Fitment Notes

Fits the 2011-2017 Ford Mustang GT and the 2012-2013 Boss 302, and the 2011-2017 Ford F-150 Base with the 5.0 Coyote. Made for Coyote and Boss 5.0L engines. Does not fit F-150 Raptor. Does not fit Mustang EcoBoost, V6, GT350 or GT500.

More Valvetrain that fit your truck or Mustang

Install and Honest Talk

Valve springs live under the valve covers, so this is a valvetrain job with the engine opened up. What comes off, what tools it takes and whether the heads stay on the engine are not spelled out here, so read the instructions before you start. The product photo does not show the full kit, so do not judge the contents by the picture.

Honest talk: the spec sheet is the whole story on this one. If your cam does not call for this much spring, you are buying a rating you will not use. And a spring is only right if installed height, coil bind and lift all line up, so measure before you assemble. What else you need: [VERIFY: retainers, seats, locks and seals in the box, install steps and tools, tune requirement].

Specs

  • Brand: COMP Cams
  • Part number: 26113CY-KIT
  • Part type: Valve Springs, Retainers
  • Quantity: [VERIFY: quantity]
  • Application: Ford Coyote and Boss 5.0L engines
  • Max lift: .550 in
  • Seat load: 93 lbs @ 1.57 in
  • Open load: 198 lbs @ 1.02 in
  • Rate: 191 lbs/in
  • Coil bind: .952 in
  • Outer diameter: Top .959 in / Bottom 1.061 in
  • Inner diameter: Top .636 in / Bottom .738 in
Anything Coyote
Anything Coyote - Anything Coyote
Anything Coyote

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