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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Where was it that was a good place to get the stock HO roller cam

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    3/27/2025 9:31 PM  #1

    BILLY WALTON from GEORGIA
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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,492

    Where was it that was a good place to get the stock HO roller cam

    I tried searching the site but came up with nothing ..... what was the best one to get or were they all the same? I am running a carb and I know the 85 had a carb and  went to fuel injection in 86 so are all the cams the same for HO 85-93?

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    3/28/2025 5:56 AM  #2

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
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    Re: Where was it that was a good place to get the stock HO roller cam

    My understanding is they are all the same, so long as the engine was an HO.  In '85 I believe the HO was only available with a 5 speed and it was a 4 barrel engine.  Truthfully, by '85 they knew the writing was on the wall and they were going to EFI the next year (California may have actually gotten EFI in '85).  Even the Cobras still used the same cam; they just put 1.72:1 roller rockers on them to make the cam act a little bigger. 

     

    3/28/2025 12:47 PM  #3

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,312

    Re: Where was it that was a good place to get the stock HO roller cam

    I may have an extra cam
    If needed.

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    3/28/2025 2:47 PM  #4

    Quicksilver
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    From: California Central Coast
    Registered: 9/22/2013
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    Re: Where was it that was a good place to get the stock HO roller cam

    Billy, The   E303 seemed to be the most popular. Summit racing used to have a good price on them a while back. I will be running mine with a Carb. and a T-5

    Money can't buy happiness. Butt it can buy Car Parts... and that is pretty much the same thing.67 FastBack
     

    3/28/2025 8:30 PM  #5

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
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    Re: Where was it that was a good place to get the stock HO roller cam

    Quicksilver wrote:

    Billy, The   E303 seemed to be the most popular. Summit racing used to have a good price on them a while back. I will be running mine with a Carb. and a T-5

     RPM Range: 1200 to 5600
    Valve Lift Intake:.528
    Valve Lift Exhaust: .533
    Duration Intake: 270
    Duration Exhaust: 278
    Duration at 050
    Intake: 217
    Duration at 050
    Exhaust: 225
    Lobe Separation: 112
    Intake Centerline: 108

    this is what I have in it now a Howards 221275-12

    Last edited by BILLY WALTON from GEORGIA (3/28/2025 8:34 PM)

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    3/29/2025 6:33 AM  #6

    TKOPerformance
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    From: Newark, DE
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    Re: Where was it that was a good place to get the stock HO roller cam

    Either cam will be a step backwards.  I'm trying to figure out what you're trying to do.  The E cam is a .498/.498 lift cam with 220/220 duration (at 0.050) on a 110 degree LSA.  Basically the E cam was a step up from the stock HO cam where you didn't have to worry about running a valve into a piston, or issues with the EFI.  A single pattern cam for a stock E7TE head was kind of a joke.  The port flow ratio in them was not matched to where a single pattern cam was the best choice.  I think Ford ground them single pattern because it was cheaper.  Basically the E cam was a cheap performance roller cam that gave you a decent bump in power over stock (the B cam was kind of an in between step that most guys just walked right past).  Now, if you ported the heads, or went to an aftermarket head a single pattern cam can actually be the optimum choice, BUT if spending $1,500 or more on a head swap there are better cam choices only costing maybe another $100.  If your cam was chosen in consultation with Howards I would tend to think it was better matched to your engine than an off the shelf Ford Racing cam. 

     

    3/29/2025 8:35 PM  #7

    BILLY WALTON from GEORGIA
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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
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    Re: Where was it that was a good place to get the stock HO roller cam

    TKOPerformance wrote:

    Either cam will be a step backwards.  I'm trying to figure out what you're trying to do.  The E cam is a .498/.498 lift cam with 220/220 duration (at 0.050) on a 110 degree LSA.  Basically the E cam was a step up from the stock HO cam where you didn't have to worry about running a valve into a piston, or issues with the EFI.  A single pattern cam for a stock E7TE head was kind of a joke.  The port flow ratio in them was not matched to where a single pattern cam was the best choice.  I think Ford ground them single pattern because it was cheaper.  Basically the E cam was a cheap performance roller cam that gave you a decent bump in power over stock (the B cam was kind of an in between step that most guys just walked right past).  Now, if you ported the heads, or went to an aftermarket head a single pattern cam can actually be the optimum choice, BUT if spending $1,500 or more on a head swap there are better cam choices only costing maybe another $100.  If your cam was chosen in consultation with Howards I would tend to think it was better matched to your engine than an off the shelf Ford Racing cam. 

    I was just thinking about going to a smoother idle I wanna drive this car all the time and was thinking something a little less agressive would be better.
     

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    3/30/2025 6:48 AM  #8

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
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    Re: Where was it that was a good place to get the stock HO roller cam

    Given the wider LSA of the cam you already have I don't know that you would get a smoother idle with an E cam.  Stock HO maybe.  It seems like the cam you have was ground to try and have a smooth idle.  I think I'd go back through the tuning and make sure everything is set optimally.  I'd also make sure there are no vacuum leaks.

     

    Yesterday 10:41 AM  #9

    BILLY WALTON from GEORGIA
    Carrollton, GA Bash Host

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    From: CARROLLTON GEORGIA
    Registered: 4/14/2013
    Posts: 2,492

    Re: Where was it that was a good place to get the stock HO roller cam

    TKOPerformance wrote:

    Given the wider LSA of the cam you already have I don't know that you would get a smoother idle with an E cam.  Stock HO maybe.  It seems like the cam you have was ground to try and have a smooth idle.  I think I'd go back through the tuning and make sure everything is set optimally.  I'd also make sure there are no vacuum leaks.

     
    Steve is gonna go thru the carb and I am gonna check for vaccum leaks

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