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Ford Racing E303 Performance Camshaft (85-95 5.0L)

18 Reviews
Our Price

$199.99

(each)
  • Item #24069
  • MPN# M-6250-E303

  • Market Price $239.99
  • You Save 17% ($40.00)
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Product Videos
Features
  • Improved Street Performance
  • Great for Naturally Aspirated Mustangs
  • Hydraulic Roller Lifter
  • CARB EO Number: D-225-16
  • Sold Individually
  • For 1985-1995 5.0L with 1.60 Rockers
Description
Street Performance. This Ford Racing cam is a great replacement choice for excellent Low and Mid Range Torque, and a Good Idle. The Ford Racing E303 Performance Camshaft is also a great choice for naturally aspirated 5.0 Mustangs.

Installation Note: This Ford Racing E303 Performance Camshaft requires upgraded valve springs for proper operation. Valve spring requirements: 120 lbs valve seat pressure minimum 295 lbs open. For stock cylinder head applications, the use of Ford Racing M-6513-A50 valve springs installed at 1.820" are recommended. For use with aftermarket cylinder heads, Ford Racing M-6513-BH valve springs are recommended.

Application. The Ford Racing E303 Performance Camshaft is designed for use in the 1985-1995 5.0L V8 Mustangs with 1.60 rockers.

Technical Notes. Ford Racing recommends the use of a Hi-Stall torque converter for Mustangs equipped with automatic transmissions.

Fitment: 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 Details

What's in the Box
  • (1) Camshaft
Installation Info
Tech Specs
Ford Racing Data Sheet
Part Number: M-6250-E303 Rocker Ratio: 1.60
Lifter Type: Hydraulic Roller Lifter Engine Type: FORD 5.0 (1985-1995)
Lobe-Center Int. 110° Lobe-Center Exh. 110°

Intake Exhaust
Valve Lash: Hyd. Hyd.
Duration: 282° 282°
Duration @ .050" Lift: 220° 220°
Valve Lift: 0.498 0.498
Lobe Lift: 0.311 0.311

Valve Timing @ 0.05" Lift: Open Close
Intake: 0° BTC 40° ABC
Exhaust: 40° BBC 0° BTC
Will it fit my Mustang?
  • Cobra - 94, 95
  • Foxbody - 85, 86, 87, 88, 89, 90, 91, 92, 93
  • GT - 94, 95

Fits 1985-1995 5.0L V8 Mustangs with 1.60 rockers

Most Helpful Reviews

5/5
Sounds great!

Sounds great and good on gas. Made a difference in hp maybe a 10-15.

Helpful (1)

5/5
e303 FRPP

Great cam, it sound like a real muscle car at idle! go for it!

Helpful (35)

Read All 18 Reviews
Overall Rating 4.8 out of 5 stars

Video

Hello and welcome back to Stage 3 of AmericanMuscle’s project Foxbody, as you can see we’re currently out enjoying the fruits of our labor which took place in the first two stages, and for the first time since we started this project, I can honestly say I’m not embarrassed to be out driving it. Of course a part of that lack of embarrassment is because we haven’t pulled up to anything fast yet, there’s no doubt our GT is looking good, but what’s the point of having all those Cobra parts if we don’t have the performance to back it all up, well, welcome to stage 3 my friends, where all of that is about to change. Before we get back to the shop where we lay out our plans to increase our tire slaying abilities, let’s recap what we knocked out in stage 2. In stage 2 we completely replaced our destroyed factory convertible top, with a brand new top and rear glass, along with just about every piece of molding and weather stripping you can think of, we put the finishing touches on our convertible Cobra vision, thanks to our Cobra tail light covers and 10th anniversary Cobra style wheels, made possible through the 5 lug conversion kit we installed. Finally, we moved to the interior and made it look as good as our exterior, thanks to the freshly painted dash, new carpet, and other miscellaneous items making our GT look and feel like it was 1993 all over again. Alright, I can’t wait to get back to the shop to show you all the stuff we have in store for this stage, let’s get to it. As you can see we have some big plans for our 302, all with the goal of replicating the Cobra’s power plant, which is going to drastically improve our performance. For starters, we’re going big with a trio of parts from Ford Racing, all of which will do wonders for our 5.0. First up we’re looking at the Turbo Swirl GT40X aluminum heads from Ford Racing, these heads are a variation on the original GT40 heads found on the 93 Cobra, with a few improvements. For one they’re made out of lightweight aluminum versus the heavier cast iron and they’re designed to flow much better than the original GT40’s. To top it off, we’ve installed some Cobra valve covers. For us to see the biggest gains using these heads, our stock cam just isn’t going to cut it, so we’re going to go with a popular street cam, the Ford Racing E303. This hydraulic roller cam should really compliment those GT40’s, and is an excellent choice for any street car thanks to its low to mid range torque. Of course we’re still going to have that great lope at idle which should sound amazing by the way, but it’s not radical enough that we’re going to have to worry about stalling out at every red light. The cheery on top for our 302 has to be this Ford Racing intake manifold, which is getting nearly impossible to find anymore, this part, paired with our Ford Racing heads and cam, is going to allow our 5.0 to flow some serious air, and will complete our Cobra transformation under the hood. Alright, in order to move all that extra air out of the engine, we’re reworking out entire exhaust from the headers all the way back, in order to keep up with that Ford Racing theme we’ve got going on under the hood, we selected our ceramic shorty headers, which we’d already installed when we did all of our motor work, and are designed to work specifically with those GT40 heads. From there, we go to BBK’s off road H pipe which does feature mandrel bent 2.5” stainless steel tubing, and should bolt up to those shorty headers without issue. Finally, everything’s going to exit out of Flowmaster’s American Thunder Cat-Back exhaust, which features those iconic 44 series mufflers. This exhaust features 100% stainless steel constructions throughout, including 2.5” mandrel bent tubing, and those OE style polished tips. Alright I think it’s safe to say we’ve got the performance side of things pretty well taken care of, but we haven’t addressed the fact that this thing still handles like a boat. So we’re going to attack our suspension much like we did our engine, go big or go home. Ron and I are just finishing up installing the KONI STR shocks and struts, which are actually a killer set for the price. We’re pairing those up with the SR Performance lowering springs, which should lower our Fox about an inch and a half on all 4 corners. Finally, we have the car in the air, the wheels off, we figured this would be a great time to ditch those rusty old drum brakes, in favor of these brand new disks. To dial in our new Fox’s alignment, we’ve installed the SR Performance caster/camber plates, which should get everything back into spec without issue, and offer a little bit more adjustment in future if need be. Since our car is a convertible, we are losing some of the structural rigidity which comes along with having a steel roof, to help combat this, we’ve installed the SR Performance subframe connectors, this part along with our springs, shocks and struts, should take all the laziness out of our suspension, and get it handling like a sports car should. Alright, now everything’s pretty much buttoned up, we’re going to tie it together with one of our custom Bama tunes, and see if all this hard work has paid off in really cranking up the power. We’ve already grabbed our baseline run after stage 1 when we got the car back from painting, so I’m going to hop in, bury this thing one more time, and see what the improvements are. Alright, our baseline run with our 93 GT gave us 194 horsepower, and 266 ft/lbs of torque. With all of our stage 3 modifications, the car put down an impressive 279 horsepower, and 317 ft/lbs of torque, making for a solid gain of 85 horsepower over our baseline numbers. The car did even better throughout the power band, picking up as much as 103 horsepower, and 107 ft/lbs of torque, throughout the curve. With the power finally there to back up our Cobra appearance, I think it’s time for one more cruise to see how our Fox does with all its modifications. Alright, stage 3, performance, check. The car's breathing better, the tune brought it all together, and as a result, this thing has some serious balls. Here we are, we’re in the back roads, moving along at a good clip, I’d saying the car is doing quite well, it’s pretty confident, I feel confident driving it, I don’t feel like I’m going to fly off the road, which I couldn’t have said before we did all this work. The car feels good, sounds awesome, and it’s just a whole hell of a lot more fun to drive. I know some people might question this build, you know, why a convertible, why a Fox body, well, because we wanted to, I mean that’s what car building is all about, it’s doing what you want. In this case, we’ve never seen Cobra convertible Fox bodies, so we wanted to build one, and I think we did a hell of a job. So is this the last you’ve seen of this car? I don’t know, maybe, maybe not, but in the meantime, thanks for watching stage 3 of AmericanMuscle’s project Fox body.

Customer Photos

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14 Questions / 10 Answers

Ask a Question

can i use stock roller rockers with this cam? do i have to change the roller rockers out to fit this cam or can I simply install this without making any engine upgrades?

luis91fox

  • You don't have to but any one would recommend it. Depending on how many miles you have on the rockers that you have now will answer. I didn't have to and it runs great.

    Bigant19931

    Good Answer (2) (0)

Show 4 more answers Question Resolved

Can I run this cam with a turbo?

nostang83

  • Yes, this cam is actually very good with turbos, I have it in my 89 TT. Sounds awesome too!

    Logan50

    Good Answer (1) (0)

Show 2 more answers Question Resolved

Nitrous Will this work with a 150 shot and gt40 heads?

Vince515

  • YES. Make sure you have appropriate valve springs in the GT40 heads.

    DrunkinDave

    Good Answer (0) (0)

Show 1 more answer Answer This Question I need this answered (0) (0)

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Customer Reviews (18) Write a Review

Overall Rating 4.8

out of 5 stars




  • 5/5

    Installation Time: Weekend

    September 28, 2012

    Sounds great!

    Sounds great and good on gas. Made a difference in hp maybe a 10-15.

    Bigant19931

    Year: 1986 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 3 Fort Worth, TX, USA

    Helpful (1) (0)

  • 5/5

    May 26, 2010

    e303 FRPP

    Great cam, it sound like a real muscle car at idle! go for it!

    Sebastien

    Helpful (35) (0)

  • 4/5

    November 18, 2009

    E303 cam

    best cam for every day driver or drag strip racing! sounds great, gives you that drag car sound! good torque to!

    jim webb

    Helpful (39) (5)

  • 5/5

    March 31, 2011

    Ford Racing E303 Performance Camshaft 5.0/5.8 (85-95)

    Thanks American Muscle, the camshaft really made a big difference in the performance and sound of my car. Excellent complement to my Cobra intake and GT40X heads

    David Gonzalez

    Year: 1989 Model: Other Driving Style: Daily Driver

    Helpful (12) (1)

  • 5/5

    February 09, 2011

    i like it

    i have one of these in my 94 gt with gt40p heads and an edelbrock performer 5.0 intake manifold. it works very well and sounds great. it does mess with the computer of a 94-95 but not as bad as some others. i do plan on putting some crane 1.7 rockers on soon to give it a little more lift. it is hard to beat the quality and price of a ford cam.

    Joshua Beasley

    Year: 1994 Model: GT Driving Style: Show

    Helpful (13) (2)

  • 5/5

    Installation Time: Weekend

    March 31, 2012

    Classic Muscle Idol!

    Im just turned 17, it took me about 2 days to install this cam and lifters. No one in my family knows anything about cars so i was on my own. This is great cam, nice loopy idol and i noticed a nice H.P gain. Its a nice lil cam to so you wont need to shorten your push rods or replace rocker arms, i didn't even need to shim them. Over all a Great cam for my 94 GT. Suggest you replace timing chain and cam gear, new roller lifters also recommended,

    Carson

    Year: 1994 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Commerce MI

    Helpful (7) (0)

  • 5/5

    Installation Time: Weekend

    December 12, 2011

    Awesome Power Gain for my applicaiton!!

    i've got a 91 GT with a 5.0 from a F150 in it, i have port and polished 351w heads with a stock rebuild, had the stock F 150 cam in it so the e303 was quite a power gain powerband seems to be from about 2500 - 5500 rpm on the butt dyno i would say around 40 horsepower could be more but i spin most of the way thru 2nd now and only had a chirp before, that was my application tho. great choice!!

    DaveGT

    Year: 1991 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 1 Gainesville, Fl

    Helpful (4) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    April 27, 2013

    great cam for sn95 stangs

    this cam has made my car come to life,,my 306 is running great with this cam,,lots of top end and great bottom end,,it shuts up a lot of corvettes,, a must for all 5.0 owners

    kholman

    Year: 1994 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2 louisville,ky

    Helpful (2) (0)

  • 5/5

    Installation Time: Shop Install

    September 28, 2011

    E303 Camshaft

    This was a great starter cam. Has great idle, and lope. Horsepower increase is pretty good too.

    Andy

    Year: 1990 Model: Other Driving Style: Street / Strip 'Stangs I have owned: 3 Elverson, PA

    Helpful (3) (1)

  • 4/5

    Installation Time: Afternoon

    December 08, 2011

    Fun

    it has great bang for the buck have alot of other mods but yousure can hear and feel the cam

    Ripp

    Year: 1993 Model: Other Driving Style: Daily Driver 'Stangs I have owned: 2 Orlando FL

    Helpful (1) (0)

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