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Ford Racing Turbo-Swirl GT40X Aluminum Head - 64CC Chamber (82-85 5.0L; 87-95 5.0L)

9 Reviews
Our Price

$599.97

(each)
  • Item #50241
  • MPN# M-6049-X306

  • Market Price $659.97
  • You Save 9% ($60.00)
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Product Videos Customer Photos
Features
  • Bolt on 65 More Horsepower
  • Improved Air Flow Over Original GT-40 Heads
  • Combustion Chamber Volume 64cc
  • Intake Port Volume 178cc, Exhaust Port Volume 62cc
  • Lightweight Aluminum
  • Fully Assembled
  • Fits 1982-1985, 1987-1995 Windsor-Style 5.0L V8s
  • Sold Individually
Description
More Power. Increase the horsepower and torque output of your push rod 5.0L engine with the Ford Racing Turbo-Swirl GT40X Aluminum Head. These GT-40X heads feature a 64CC Combustion Chamber to greatly improve the airflow over the original GT-40 design allowing you to bolt on 65 more horsepower.

Improved Air Flow. These Ford Racing GT-40X heads have an intake port volume of 178cc allowing for an intake flow of approximately 240 cfm at .550" lift (at 28" of H20) and an exhaust port volume of 62cc allowing for an exhaust flow of approximately 170 cfm at .500" lift (at 28" of H20). Machined for 1.94" Intake and 1.54" exhaust valve diameters.

Lightweight. Made from high quality original equipment style 356-T6 aluminum castings, each head weighs in at only 22 lbs. that is 25 lbs. lighter than the original cast iron GT-40 head, that is a weight savings of 50 lbs.

Fully Assembled. Leak tested prior to assembly, each Ford Racing Turbo-Swirl GT40X Aluminum Head comes fully assembled with M-6507-J302 intake valves, M-6505-G302 exhaust valves, and M-6513-A50 valve springs. As an added bonus the valve springs are compatible with all Ford Racing roller camshafts.

Installation Notes. Ford racing "X" heads are designed to use either GT-40 or aftermarket performance intake manifolds, M9439A50 intake gasket, and AGSF-32C spark plugs. Designed for bolt-down rocker arms part number M-6564-B351 for a 1.6 ratio or use part number M-6564-A50 for a 1.7 ratio.

Application. The Ford Racing Turbo-Swirl GT40X Aluminum Head is designed to be a direct bolt-on for the 1982-1985 and 1987-1995 5.0L Windsor-style V8 engines. It will not fit 1986 5.0L with flat-top pistons unless pistons are notched for valve relief.

Technical Note. Be sure to check your intake manifold for port match, because not all intakes are compatible due to the tall high-flow ports.

Fitment: 1982 1983 1984 1985 1987 1988 1989 1990 1991 1992 1993 1994 1995 Details

What's in the Box
  • (1) Assembled cylinder head
Installation Info
Will it fit my Mustang?
  • Cobra - 94, 95
  • Foxbody - 82, 83, 84, 85, 87, 88, 89, 90, 91, 92, 93
  • GT - 94, 95

Fits 5.0L Ford V8 engines. It will not fit 1986 5.0L with flat-top pistons unless pistons are notched for valve relief

Most Helpful Reviews

5/5
Fresh Build, Clean Power

Ordered through a local ford shop. Shipped quicker than "All" the competition. Clean Fit, awesome detail done by ford racing and even weighs less than the v6 cast aluminum heads. These heads are aweso ...

Read More
Helpful (5)

5/5
roller rockers

you will need 1.60 PEDESTAL roller rockers to fit.

Helpful (5)

Read All 9 Reviews
Overall Rating 4.9 out of 5 stars

Videos

Hello and welcome back to Stage 3 of American Muscle’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 View Full Transcript

Customer Photos (4) View All Photos

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26 Questions / 7 Answers

Ask a Question

What's a good edelbrock intake for these heads??

85foureye Year: 1985 Model: GT

  • the performer efi is the best edelbrock intake for these heads, it's a 1500-5500rpm range intake which is ideal for these heads on a 302 or 306 based motor.

    Best Answer

    Mayhem12 Year: 2012 Model: V6 Top 1000 Contributor

    Good Answer (1)

Show 2 more answers Question Resolved

Do I need an after market intake in order to successfully bolt on 65 horses? I'm looking to buy an expensive bolt on for my mustang. Either an intake manifold and throttle body or just plain aluminum heads. What is best for a stock engine? Thanks

Dmcj Year: 1995 Model: GT

  • If you are looking for 65 hp then get the heads they will add a good bit more hp the intake and throttle body will help with the heads but only about 15 to 20 hp the heads alone will be close to 65hp or more

    Jeterfan Year: 2004 Model: GT Top 500 Contributor

    Good Answer (1)

Show 2 more answers Question Resolved

would this work im in search of new heads for my 88' gt and was curious if i could put the cobra intake and manifold on it ,it came with the car as extra parts not sure what it could possibly do or not do if i try

sanchero13 Year: 1988 Model: GT

  • Yes, any gt40 intake will match up perfectly to these heads. You will need intake gasket part number 1262R.

    Dmcj Year: 1995 Model: GT Top 50 Contributor

    Good Answer (0)

Answer This Question I need this answered (1) (0)

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Customer Reviews (9) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Full Day

Installation Cost:$500-$1000

  • Performance Gain 4.777778 4.8
  • Fit 4.888889 4.9
  • Bang For Your Buck 4.666667 4.7



  • 5/5

    July 11, 2012

    roller rockers

    you will need 1.60 PEDESTAL roller rockers to fit.

    roush500

    Year: 1995 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 3 Sarasota, FL, USA

    Helpful (5) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    March 16, 2012

    Fresh Build, Clean Power

    Ordered through a local ford shop. Shipped quicker than "All" the competition. Clean Fit, awesome detail done by ford racing and even weighs less than the v6 cast aluminum heads. These heads are awesome!!!

    St33zy

    Year: 1998 Model: Other Driving Style: Daily Driver 'Stangs I have owned: 1 Hampton, Va

    Helpful (5) (0)

  • 5/5

    Installation Time: Afternoon

    April 26, 2013

    more than expected!!!!

    I was expecting some heads to arrive that were as heavy as the stock heads and that would perform a little better than stock. man was I wrong. these gt40x heads weigh half as much as stock and way out perform them. along with the ford racing e303 cam and shorty headers in saw a 115 rwhp gain on the dyno. the icing on the cake is that now my stang just sounds meaner than ever.

    supersleeper

    Year: 1993 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 4 vidalia, GA

    Helpful (2) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $500-$1000

    December 12, 2014

    Would I reccomend? Yes and No

    Silky smooth install. Good quality parts. If you do not plan on porting these heads I would recomend going with the Edelbrocks that AM offers. Although they are a little more expensive they flow much better on paper. With that being said I think these heads flow excellent. I can hear the difference in air that my engine gets now. If I could go back in time I would order these heads again

    Top 50 Contributor

    Dmcj

    Year: 1995 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 1 bay area

    Helpful (1) (0)

  • 5/5

    Installation Time: Full Day

    June 22, 2014

    Great fit

    This heads arrived insanely fast. I think it was like two days. And wow what a difference these made!

    88Mustangg

    Year: 1988 Model: Other Driving Style: Daily Driver 'Stangs I have owned: 1 Redding, CA, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    May 08, 2014

    Very nice setup

    I read tons of reviews and forum discussions but it came down to price for me I bought one head new and the other new but open package on Ebay and for about $700 I have a set of aluminum heads that blow away the stock anchors. I havent had the car out for a full pass yet but sure does seem a lot more alive I do want to mention that the chambers needed some cleaning up any novice can do it I have porting experience and the tools but just gave them a quicky.

    Top 250 Contributor

    DanLINY

    Year: 1990 Model: Other Driving Style: Show 'Stangs I have owned: 1 Long Island, New York, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    December 20, 2013

    great pricing

    the web site was easy to use and the pricing was great. not installed yet doing a whole engine rebuild this spring. looking forward to breathing more life and power into my car.

    bret1966

    Year: 1995 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Oklahoma City, OK, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Weekend

    March 21, 2013

    Great heads for the money!

    I make over 450 HP at the wheels using these heads on my 110,000 original 302 with a procharger P1SC, F Cam and GT40 intake.

    Top 1000 Contributor

    92GTSC

    Year: 1992 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 1 Dayton, OH, USA

    Helpful (1) (0)

  • 4/5

    Installation Time: Weekend

    January 24, 2014

    Finishing off the top end

    Installed in about a weekend. everything fit nicely. Only negative comment is the packaging for an expensive machine piece the packaging left a lot of opportunity for damage in shipping.

    Mustangc97

    Year: 1991 Model: GT Driving Style: Show 'Stangs I have owned: 4

    Helpful (0) (1)

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