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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

$648.99

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

  • Market Price $749.99
  • You Save 13% ($101.00)
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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

Won't fit? Add an exception

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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24 Questions / 10 Answers

Ask a Question

what all will i have to buy for these heads to performe to their full abilities. and do i have to have a turbo hooked up for these heads. thanks

Borris Year: 1994 Model: GT

  • It depends on their use. Typically a mid range street cam will compliment the heads nicely for dd with occasionally track use.As far as "full abilities", that is entirely dependant on your wallet. If I am understanding your second question correctly, 'turbo-swirl" does not refer to a turbo charger enhancing feature. It is a brand name performance reference drawing attention to the combustion chamber geometry, designed to swirl the air and create more turbulence to mix the air and fuel more efficiently. It is analogous to the term Ecoboost for Ford's turbocharging technology .

    Best Answer

    clowe1965 Year: 2011 Model: GT Top 250 Contributor

    Good Answer (8)

Show 4 more answers Question Resolved

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

85foureye Year: 1985 Model: GT

  • IM A FAN OF THE BBK SSI INTAKE HUGE IMPROVEMENT ON MINE WITH TRICK FLOW TWISTED FLOW HEADS

    Best Answer

    SYDWAYZ89 Year: 1989 Model: Other

    Good Answer (1)

Show 2 more answers Question Resolved

Are these heads compatible with the 1994 cobra lower intake

Basscat96 Year: 1990 Model: GT

  • If you are talking about the plenum on the Cobra Replica Intake manifold the naswer is yes, but for Ford Racing parts if you call 800-FORD-788, they sat on the phone with me for like 40+ minutes and helped me piece together a new engine for my 1990 Mustang GT 5.0.

    JAnthony19 Year: 1990 Model: GT Top 500 Contributor

    Good Answer (0)

Show 1 more answer Question Resolved

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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 100 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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