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Discussing Stock head and Intake Porting in the 5.0 Mustangs Forum. ok how much horsepower can be gain by porting the stock heads and stock intake? ... Modded Mustangs is the premier Ford Mustang Forum on the internet. We discuss all aspects of the Ford Mustang on the forum. Registered Users do not see the above ads. Please Register - It's Free! |
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#1 |
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Newbie
Join Date: Jan 2006
Location: Rocky Point NC
Posts: 10
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Stock head and Intake Porting |
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#2 |
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Hardcore Enthusiast
Join Date: Aug 2005
Location: Chesapeake, Virginia
Posts: 1,716
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I'd say 50-60 depending on how well the heads flow afterwards.
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88 Mustang Coupe 2006 FFW Richmond True Street Runner-Up www.rickscarcare.net http://img146.imageshack.us/img146/2158/ricksadql2.jpg |
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#3 |
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Newbie
Join Date: Jan 2006
Location: Rocky Point NC
Posts: 10
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ok that sounds good how about if i stroke the motor to a 347 how much power will be gained over the stock motor?
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#4 |
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Hardcore Enthusiast
Join Date: Aug 2005
Location: Chesapeake, Virginia
Posts: 1,716
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you gonna need more than a e-cam for a 347
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88 Mustang Coupe 2006 FFW Richmond True Street Runner-Up www.rickscarcare.net http://img146.imageshack.us/img146/2158/ricksadql2.jpg |
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#5 |
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Newbie
Join Date: Jan 2006
Location: Rocky Point NC
Posts: 10
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alright what size cam don't wanna be to wild though just enough
Matt |
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#6 |
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Maintenance Man
2002 Mustang GT
11.47@120.58
Join Date: Aug 2005
Location: Valdosta, GA
Posts: 3,945
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Trash the intake. The heads can be made to flow OK, but the intake won't. Really, it's not a flow problem with the intake, it's the runner design and that the intake is built to perform under 4500 rpm. Your gonna need an aftermarket intake to take advantage of higher RPM breathing or your entire package will suffer.
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#7 |
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Newbie
Join Date: Jan 2006
Location: Rocky Point NC
Posts: 10
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well what i'm looking for is more power but retaining a stock look
Matt |
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#8 |
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Maintenance Man
2002 Mustang GT
11.47@120.58
Join Date: Aug 2005
Location: Valdosta, GA
Posts: 3,945
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You'll be wasting a head porting if you keep the stock intake. I'm not sure what the hangup is for keeping it stock looking, if you absolutely insist on keeping the stock intake then spending some bank (more than what it would cost for a better aftermarket unit) you could have someone cut open the stock intake, shorten and work the runners, and weld it back.
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#9 |
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Regular
Join Date: Dec 2005
Location: S.C.
Posts: 79
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GT-40 P heads GT-40 intake and you will be doing fine. stock heads have some small valves to begin with and a stroker is a lot of money for a small power boost.
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86 Mustang GT- twinturbo nitrous injected and much more. 86 Bronco- few mods |
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#10 | |
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Feb 08 ROTM
1990 Mustang LX
9.36@143 mph
Join Date: Jan 2006
Location: Fond du Lac, Wisconsin
Posts: 7,026
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Racing in memory of Dave Bandt 11/19/69 - 3/23/08 "he's traded his wheels for wings" Professor of Natural Aspiration ![]() Thanks to: Artie at Trick Flow, Dave at Team Z Motorsports, Brian at Total Engine Airflow and Harold at Furo Racecraft |
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#11 | |
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Newbie
Join Date: Jan 2006
Location: Rocky Point NC
Posts: 10
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The hang up is this Car is an SSP I wanna keep a Stock appearance because of show quality and everything if i can gain horse power with out going into more expensive heads and intake that don't look stock. i want as much power as possible with stock components like the heads and intake but the stock block will remain in the car for now but maybe in about a year or two and then will be pulled for a new sportsman block from ford racing So as of now I want as much power out of the stock block and components as possible.Thats the hang up with me buying a whole new intake and heads! Matt |
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#12 |
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Regular
Join Date: Jan 2007
Location: St Louis, Mo
Posts: 138
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You can use GT40P heads and a ported stock upper/lower intake. The port3eds tock intkae when properly done can flow 190-200cfm which is a great match to the P heads. Power should be 260-280RWHP if a good cam is installed.
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#13 |
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IT'S TURBO TIME
1990 Mustang LX Turbo
Join Date: Oct 2006
Location: NY
Posts: 8,649
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upgrade to the fox cobra intake i believe that was the only diffrence between the stock 5.0 and the cobra 5.0
which had a 25 hp diffrence
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Put up, Shut up, Line Up And Get Beat Up!!! |
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#14 |
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Newbie
Join Date: Jan 2006
Location: Rocky Point NC
Posts: 10
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is there a type of paint i can buy to put o the heads to make them appear to be stock?
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#15 | |
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Enthusiast
Join Date: Apr 2006
Posts: 639
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show car
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"Those who forget the past are condemned to repeat it" Rev. Jim Jones |
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#16 |
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Regular
Join Date: Jul 2006
Posts: 82
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If i were in you're shoes, I'd build that bitch bad, and just keep all the factory components incase you ever wanted to put the engine back to stock to keep the SSP value so to speak. Doesn't that sound like an idea?
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#17 |
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Newbie
Join Date: Jan 2006
Location: Rocky Point NC
Posts: 10
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thought about that and might end up doing it
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#18 |
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Enthusiast
95 opalfrost gt
Join Date: Nov 2006
Location: Connecticut
Posts: 988
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If you really want to keep it stock looking and dont mind wasteing a few bucks.(JMHO) Then have the e7s ported http://www.thumperoforangepark.com/ and get in touch w/ Tmoss at http://www.tmossporting.com/ to have the intake done. With a well matched cam youll be looking at a nice power increase and still retain the stock look. The big ? is will this satisfy your HP Quest? Trying to keep all the stock parts for looks is going to limit your HP potential.
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#19 |
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Regular
Join Date: Nov 2006
Location: Danville, Pa.
Posts: 243
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I have a set of early 351w heads that are ported & polished with 1.94/1.60 valves I would sell you. They have 60cc chambers.
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1982 GT (t-top) 351w(.060),10:3, ported & polished iron heads, 1.94/1.60 valves, BBK shorties & flowmasters, 274XE cam, stealth intake, mallory dizzy, stealth intake, 750dp, Edge 3700 stall converter, C-4, 4:10's Best E.T 12.85@102mph |
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#20 |
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Regular
Join Date: Jul 2006
Posts: 329
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ballpark range how much is it to get gt40p's ported? and would they work good with a trickflow street heat upper lower and 70mm
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