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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

$565.99

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

  • Market Price $678.99
  • You Save 17% ($113.00)
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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.

Mustang 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 Read All Reviews

Overall Rating 4.9/5 Write a Review
5/5
roller rockers

you will need 1.60 PEDESTAL roller rockers to fit.

Helpful (5) (0)

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) (0)

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 Customer Photos

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Q & A (24 Questions, 3 Answers) Ask a Question

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

Good Question (1) (0)
  • Yes, any gt40 intake will match up perfectly to these heads. You will need intake gasket part number 1262R.

    Helpful (0) (0)

    Dmcj Year: 1995 Model: GT

    Top 50 Contributor

Answer This Question

Will the BBK SSI-R race intake work with these heads? I just want to make sure that intake has good port match for these heads. Thanks!

AsphaltCowb0y Year: 1989 Model: GT

Good Question (0) (0)
  • Yes they will. Bbk ssi intake would work really well with these heads.

    Helpful (0) (0)

    Dmcj Year: 1995 Model: GT

    Top 50 Contributor

Answer This Question

Do TF street heat fit these heads or need to be port matched?

Leo12 Year: 1990 Model: GT

Good Question (0) (0)
  • They should work fine. I am running an aftermarket intake and I have no issues. With the correct 1262 R gasket and some RTV they will fit right on

    Helpful (0) (0)

    Dmcj Year: 1995 Model: GT

    Top 50 Contributor

Answer This Question

Reviews (9) Write a Review

  • 5 Stars .89 89%
  • 4 Stars .11 11%
  • 3 Stars 0 0%
  • 2 Stars 0 0%
  • 1 Stars 0 0%
4.9

out of 5 stars

9 Customers Recommend this Product

Installation Time:Full Day

Installation Cost:$500-$1000

  • Performance Gain: 4.777778 4.8/5
  • Fit: 4.888889 4.9/5
  • Bang For Your Buck: 4.666667 4.7/5
Filter By Sort By
  • 5/5 Yes, I recommend this product

    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 Yes, I recommend this product

    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 Yes, I recommend this product

    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.

    Top 1000 Contributor

    supersleeper

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

    Helpful (2) (0)

  • 5/5 Yes, I recommend this product

    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 Yes, I recommend this product

    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 Yes, I recommend this product

    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 Yes, I recommend this product

    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 Yes, I recommend this product

    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 Yes, I recommend this product

    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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