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Ford Performance F303 Performance Camshaft (85-95 5.0L)

Item 50246
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      Review & Installation Video

      The Ford Performance F303 performance camshaft is a great choice for any '85 to '95 5.0L pushrod Mustang owner who's looking for a boost-worthy camshaft with a perfect mix of high lift and long duration. It's a choppy one that's perfect for supercharged applications, but works well with naturally aspirated motors too, with the right bolt-ons. Now everyone knows that the 303 cams from Ford Performance are pretty affordable coming in at just about 200 bucks a piece. Now the installation, however, is pretty involved. You'll need some knowledge and some expertise, so get the full 3 out of 3 wrench rating out for this difficulty meter. Now if you're looking for an affordable, reliable camshaft for your pushrod motor then Ford Performance's F303 cams, otherwise known as the alphabet cams, are a great choice for the motor. Now the F303 choice I have here isn't the first in line. It's a more serious option that's got a lot more to offer. Let me break down the options for you in the alphabet cam lineup, and let you know what's best for each application, then wrap back around to the F303. Now the first in line here of the alphabet cam series is the E303 cam which is actually a camshaft I've had on my own '95 Cobra. It looks pretty good, it's not too crazy, and it's got a very nice muscle car choppy sound and feel to it. It made a good amount of low-end torque which makes the E303 cam perfect for street driving and very light track runs. It's a great starter cam. Now if you're looking for something a little bigger, then the B303 cam is the next one in line. It's a nice step up from its predecessor and it's still street-friendly. Just the peak power moves up a little bit to the mid-range at the RPM band. You can expect more power at that peak than the E303 since it is slightly bigger. So the track benefits are a little more noticeable here. The sound is even choppier because of that too so expect some serious muscle.Next in line after that is the F303, which often referred to as the boost cam, because it's more suited for forced induction setups. It'll perform best under boost, making really impressive power. And it's really because it's a happy medium, again, between the high lift and long duration, like I said in the beginning. Now don't get me wrong, it performs well in naturally aspirated 5.0s but under boost, you'll appreciate it even more.Now the next two cams in line, the X-cam and lastly the Z303 cam, will be pretty much your track dedicated camshafts. You get the most lift out of all the alphabet cams with those two, the biggest chops, and the most power, especially at the top end. Those may require more modifications than the previous cams. And expect them not to work as well on the street. Those two are meant for the strip only. Now back to that F303 cam here. You'll be able to use your stock 1.6 rocker arms but it is recommended to have bigger flowing heads and an intake if you're planning on upgrading to the F303 cam since it is a much larger cam than the basic E303 or even the B303. Lot of information. It's taking my breath away. Now the stock 5.0L HO cam advertise specs for intake and exhaust duration are 266 degrees and lift being .444. Now the F303 specs are advertised at 288 degrees and .512. This is one of those cams that makes driving forced induction motors a lot more fun. And you'll see the best gains under that boost but adding heads and an intake, headers, exhaust, and other bolt-ons can go a long way for good gains on those stock or naturally aspirated motors. It only runs you about 200 bucks for the cam as well. And since it's not that dual overhead cam, you're looking at that single in-block cam. Now the installation for the cam is going to go, without saying, requiring some know-how and expertise and of course the proper tools and time. Full 3 out of 3 wrenches on our difficulty meter here for this one and have the entire toolbox on deck if you're tackling it yourself. You're not working at the top end of the motor like you would be with those dual overhead cam setups on the 4.6 so this may prove to be a little bit more difficult for you. Overall though, it'll take a better part of a day to complete the job, and if you're not familiar with it yourself, there's no shame handing it over to a professional to get done properly. Just make sure you tack on that cost to the final price tag. Wrapping things up, if you're the owner of a '85 to '95 5.0 pushrod Mustang, you might want to check out the Ford Performance F303 camshaft which is available right here at americanmuscle.com.

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features

      • Improved Street Performance
      • Great for Supercharged Mustangs
      • Hydraulic Roller Lifter
      • 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 F303 Performance Camshaft is also a great choice for Supercharged 5.0 Mustangs (manual transmission recommended ).

      Application. The Ford Racing F303 Performance Camshaft is designed for use in the 1985-1995 5.0L V8 Mustangs with 1.60 rockers. Ford Racing recommends a Hi-Stall torque converter for Mustangs with an automatic transmission.

      Technical Notes. Performance camshafts work only on EFI engines with mass air induction systems.

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

      MPN# M-6250-F303

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      4.8

      Customer Reviews (16)

      Write a Review

      Ratings Summary

      4.8 out of 5 overall rating from 16 customers

      Installation Time: Afternoon

      Installation Cost: $100-$250





      • April 27, 2019

        5 1993 LX - Ted Installation Time: Afternoon

        very nice

        completely satisfied with this purchase, very good qualitiy

        Helpful (1)
      • April 23, 2019

        5 1994 Cobra - a5literkid Installation Time: Afternoon

        F cam

        Works great and sounds great with good performance gain

        Helpful (1)
      • April 25, 2018

        5 1993 GT - RichardL

        Clean

        I haven't installed it but to the cam looks amazing. Like if I could make love to a cam shaft I would. I recommend putting a hole in the cam for guys like me ;)

        Helpful (9)
      • December 14, 2017

        5 1995 GT - RedDemon Installation Time: Full Day

        BestOfTheBest

        A Notice in Power Right Away Love The idle. installed The F303 after That Installed 373s and Dam You can Feel The Difference.

        Helpful (10)
      • March 03, 2017

        5 1995 GT - ShaneS Installation Time: Afternoon

        Great quality

        Great quality couldn't ask for a better cam. Sounds really good and great power for the price

        Helpful (10)
      • November 07, 2016

        4 1992 Other - Durrance1996 Installation Time: Shop Install Installation Cost: $100-$250

        1992 fox body lx

        This cam is so badass. You can definitely feel the difference and the power

        Helpful (11)
      • June 25, 2016

        5 1994 GT - Maddog Installation Time: Afternoon

        Manuel

        Is perfect!! the f303 when crazy my pony! The cam and the roller rokers is perfect combination!! Good cam in my opinión is good good product

        Helpful (11)
      • May 20, 2016

        5 1991 GT - Quick

        "GREAT" Cam Shaft

        Installed this in my 91 Mustang Gt. Once I hit the Mid range it's a rocket. "LOVE" the lope.

        Helpful (12)
      • April 22, 2016

        5 1994 GT - Johnny Installation Time: Full Day

        94 gt mustang

        I just installed the Ford racing F 303 Cam,roller lifters ford racing. I'm very happy with the mid range power I've got from adding these. It's also got a very aggressive sound!!!!

        Helpful (10)
      • May 31, 2015

        5 1986 Other - Cloudryu Installation Time: Afternoon

        Worth the money

        I bought it to replace the old cam during my rebuild. Love the sound and the power it produces.

        Helpful (9)

      Questions & Answers (13 answers)

      5 Top Rated Questions

      Will a f-303 cam work with a stock intake on a 1987 mustang? I've got a 40 over flat top bottom end and a stock set of heads I'm wanting to know if the f-303 cam will work with those parts. I've got a guy wanting to sale a set of cobre gt 40 heads and intake with 1.70 roller rockers but if I don't have to have them then I would perfer to stick with what I have.

      • As with any camshaft, the Ford Performance F303 Performance Camshaft will need to be measured for proper piston-to-valve clearance. I would not recommend just dropping in camshafts, without checking clearances, even on a stock valve-train.

      Helpful (3)

      What max horsepower power range is this cam rated for?

      • I had this cam on my Keith Black 306 bottom end with gurdle and windage tray, tfs street heat heads, Vortech upper Truck lower intakes, 70mm throttle body, 42 lbs injectors (not enough), 1 3/4 inch headers, 3" header to tip mac exhaust and a Vortech S Trim blower with stock 6lb pulley, Anderson Ford PMS electronic box for tuning. On Mustang dyno made 565 rear wheel hp, and 540 lbs of tourque. Injectors were maxed out, my only mistake. All street/handlimg suspension ran 10.65@124mph...Great cam but if using with stock block stick to 1.6 ratio rockers as .512 l8ft is pushing the stock clearance limit. B and E 303 no clearance issues with stock at jist below .500 lift...Hope that Helps...Good Luck

      Helpful (2)

      carberated will this cam work on a carberated engine

      • Yes it will if the engine is set up for a roller cam, but note that it is designed for an EFI engine. Your best choice is to call a cam manufacturer or the guys here at American Muscle and let them help pick the best cam for your application. Good Luck!

      Helpful (2)

      Cams I wanted to know what is faster a E(303) F303. I just want to know which cam makes a different performance but that is street legal.

      • Both Cams are street legal and I think the F cam is a little more agressive than the E cam. If you go with a X or Z cam they are made for racing applicaions I have the F 303 in my 95 Gt and I love it. Highly recommend replacing the rods with hardened rods and the lifters

      Helpful (2) Show 1 more answer

      Is there any reason not to run this cam on a 95 cobra motor qith GT-40 heads and 1.72 rockers? It is slated for boost down the line...

      • I would certainly suggest not to install this into a naturally aspirated application. When it comes to camshafts, it all comes down to timing. Hypothetically if you installed this into a naturally aspirated application, you would be losing power as your Mustang will effectively be expecting boost from a supercharger due to this improper timing. The same goes for putting a naturally aspirated cam into a supercharged application. It all comes down to proper timing.

      Helpful (1)
      Post Your Question
      8 More Questions
      I have a stock 95 5.0 motor, my foxbody has been converted to mass air. Can I use all my stock components with this cam? (rockers, springs, valves, hydraulic lifters) or do I need to upgrade anything on my motor to run this camshaft? 1 answer
      If i was to install this in a stock block 302 from a 1986 GT, would I need to get a mass airflow meter and/or sensor? 1 answer
      Hey I'm interested in this cam for my 1995 mustang what springs and rockers do I need? 1 answer
      will this work in a 95 351W roller block 0 answer
      Will this cam work with the Scat 9000 347CI Stroker kit on an otherwise stock 94 cobra engine? 1 answer
      I am putting together a 393w, with AOD transmission and 2800rpm converter. Is for an effi pony. Do I recommend the F303? 1 answer
      i got a vortech v1and if i put a f303, can i keep the original spring valve or we have to change for other 1 answer
      Is the f-303 cam a good choice for a 306 with a vortech supercharger ? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Camshaft

      Tech Specs

      Ford Racing Data Sheet
      Part Number: M-6250-F303 Rocker Ratio: 1.60
      Lifter Type: Hydraulic Roller Lifter Engine Type: FORD 5.0 (1985-1995)
      Lobe-Center Int. 109° Lobe-Center Exh. 119°

      Intake Exhaust
      Valve Lash: Hyd. Hyd.
      Duration: 288° 288°
      Duration @ .050" Lift: 226° 226°
      Valve Lift: 0.512 0.512
      Lobe Lift: 0.320 0.320

      Valve Timing @ 0.05" Lift: Open Close
      Intake: 4° BTC 42° ABC
      Exhaust: 52° BBC 6° BTC

      Will It Fit My Mustang

      • Cobra - 93, 94, 95
      • Cobra R - 93
      • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95
      • LX - 87, 88, 89, 90, 91, 92, 93
      • Other - 85, 86

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