Ford Performance Boss 302 Valve Spring Kit 5.0L 4V GT Boss 302/S/R 2011-2014

Ford Performance:
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  • OE On 2012-2013 Boss 302
  • Sold In A Set Of 16
  • 8000 RPM Compatible
  • Use With Cams Up To 13mm Lift
MSRP $66.00
You save 21%

Ford Performance Boss 302 5.0L 4V Valve Spring Kit for 2011, 2012, 2013 and 2014 Mustang GTs and 2012-2013 Boss 302/S/R Mustangs.

These valve springs are original equipment on the 2012-2013 Boss 302 and will fit 2011-2014 GT Mustangs.

Features & Benefits:
- Higher Seat Pressure Than Base Valve Spring
- 8000 RPM Compatible
- Use with Cams Up to 13mm Lift
- 300 N Closed 700 N Open Boss
- 265 N Closed 650 N Open Mustang GT
- Installed Height is 40mm: Same as the Mustang GT
- Can Be Used on Base 5.0L Ti-VCT Head
- Sold in a Set of 16

These valve springs were used as OE on the Boss 302 5.0L Coyote engine. They have a higher seat pressure than stock GT valve springs, which will increase the RPM capacity to 8000 RPM and will allow for cams with up to 13mm lift! This kit has a variety of applications and, because it's from Ford Performance, you know you're getting great parts at a great price!

By buying your Ford Performance parts from CJ Pony Parts, you know you're getting your Mustang parts from a reliable, reputable dealer, since CJ Pony Parts is a Top 10 Ford Performance Dealer and has been for the last 10 years. When you buy your Ford Performance Mustang parts from CJ Pony Parts, you know you have a winning combination.

Order a Ford Performance M-6513-M50BR Boss 302 5.0L 4V Valve Spring Kit for your 2011, 2012, 2013 or 2014 Mustang GT or your 2012-2013 Boss 302/S/R Mustang from CJ Pony Parts today!

California Residents: Proposition 65 Warning

Vehicle Fitment

This product will fit the following Mustang years:

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I am putting GT40P heads on an 86 5.0 roller engine with a B303 cam.  Will these work with this application?

Asked by: jonboy7061
These springs are for the coyote 5.0 engine.
Answered by: rk cjpp
Date published: 2019-01-17

These are for one head or for intake or exhaust since you need 48 to do a complete engine?

Asked by: Coyfox
These are sold in sets of 16 so you would need 3 sets.
Answered by: rk cjpp
Date published: 2018-11-01

Will these fit the Ford Racing M-6513-A50 Tha I’m putting in my 1989 5.0 Lx?

Asked by: SirMoore
These valve springs will only work on the 5.0 coyote engine.
Answered by: rk cjpp
Date published: 2018-12-30

Will this valve springs work with a 2014 stock gt cam? Can they be a direct replacement for the current valve springs? Will engine need a tune after install?

Asked by: BryanMP
Yes they will work, you shouldn't need a tune.
Answered by: rk cjpp
Date published: 2017-06-12
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