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Ford Performance Boss Modular 5.0L Engine Block

Market Price $1,997.89 You Save 12% ($229.85)
Our Price

$1,768.04

+ $99.00 Handling Fee with FREE Shipping

  • Item 50195

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Ship to: ashburn - 20149
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    Features, Video & Details

    • Modular 5.0L Block (302 Cubic Inches)
    • 4.6L Deck Height
    • Cast Iron
    • Siamese 94mm Bore
    • 17mm Main Web Minimal Thickness
    • 4 Bolt Mains

    Review & Installation Video

    Review & Install Video

    Modular 5.0L. Now you can install a Ford Racing Boss Modular 5.0L Engine Block in your very own SN95 Mustang on the cheap. This block reuses everything from your stock GT's 4.6L V8, all you need to supply is a new set of larger pistons and brand new 5.0 is complete.

    Built Ford Tough. This Boss 5.0 iron block features a 4.6L deck height and a 94mm cylinder bore. It is cast in Ford's Cleveland plant using a proprietary iron mix to yield the strongest casting possible.

    Additional Features. Featuring a Siamese 94mm Bore and a 4 Bolt Main with interference fit nodular iron machined caps, this Ford Racing Modular 5.0L block has increased main web window size for less oil movement and greater power.

    Application. This Ford Racing Boss Modular 5.0L Engine Block is designed to be direct fit replacement for the stock 4.6L block of the 1996 to 2004 GT Mustang.

    Technical Note. This is a bare block, no internals are included. This block does not have a finished milled head deck or cylinder bores. Your engine builder will need to mill the deck and finish bore, then hone each bore specifically for the combination being installed.

    NOTE: Ships Continental 48 States ONLY. No Canada, APO/FPO, Hawaii, Alaska, Puerto Rico, Guam or Us Virgin Islands.

    If shipping to a business, please include the business name. Also, after your order is placed, be prepared to let us know if you will need a Lift-Gate service. You will be contacted via email before your order ships.

    Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 Details

    MPN# M-6010-BOSS50

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    • (1) Engine
    Installation Info
    Tech Specs
    Will it fit my Mustang?
    • Boss 302 - 12, 13
    • Bullitt - 01, 08, 09, 19
    • Cobra - 93, 94, 95, 96, 97, 98, 99, 01, 03, 04
    • Cobra R - 93, 95, 00
    • EcoBoost - 15, 16, 17, 18, 19
    • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19
    • GT350 - 15, 16, 17, 18, 19
    • GT350R - 15, 16, 17, 18, 19
    • GT500 - 07, 08, 09, 10, 11, 12, 13, 14
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Mach 1 - 03, 04
    • Other - 79, 80, 81, 82, 83, 84, 85, 86
    • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17

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    Questions & Answers (64)

    5 Top Rated Questions

    will this fit the 2006 Mustang GT with an automatic? I am planning on upgrading different parts of the car?

    • Yes, this would fit a 2006 GT with automatic!

    Helpful (1)

    What all would I need to swap this into a 2007 GT

    • The Ford Performance Boss Modular 5.0L Engine Block is a 4.6L that is bored out to accept 5.0L displacment. This will accept all existing parts from your vehicle with the exception of the rotating assembly (Pistons, Connecting Rods, and Crankshaft), though this will benefit largely from a tune and cams as well.

    Helpful (1)

    Will this intake work on this block? Ford Performance BOSS 302 Intake Manifold (11-14 GT) Item 50179

    • This Ford Racing Boss Modular 5.0L Engine Block is designed to be direct fit replacement for the stock 4.6L block of the 1996 to 2004 GT Mustang. The use of the 1996-2004 GT heads will not allow the use of the Ford Performance BOSS 302 Intake Manifold.

    Helpful (1)

    It says that this block needs larger pistons. Do I need 5.0L pistons?

    • Yes, larger size 5.0l pistons specific for the modular 302 engines would be needed. This block is bare and only has a rough bore in it, so a .020-.030 " larger piston would be required in conjunction with custom machining to ensure a proper installation with this engine.

    Helpful (1)

    I'm currently rebuilding my Mach 1. I was going to get my heads block machined for new forged rods, pistons valve train etc... If I decided to use this block can I keep my machs 8 bolt crank? Can I keep my oem cams as well?

    • This Ford Performance Boss Modular 5.0L Engine Block would use all the same parts on your existing 4.6L block. So you should be able to keep your existing crankshaft and camshafts.

    Helpful (1)
    Post Your Question
    10 More Questions
    Application. This Ford Racing Boss Modular 5.0L Engine Block is designed to be direct fit replacement for the stock 4.6L block of the 1996 to 2004 GT Mustang. So from this description this block will bolt directly into a 4.6 engine bay? No trans mods or engine mount mods? 1 answer
    What is a good piston to go in this block? 1 answer
    If i buy this block .. 0.20 pistons will those work with it or do i have to buy 0.30. As i will be using my car for boost and also will the crankshaft from manley for 2V will it work in this? Thanks 0 answer
    Thinking about getting this block. But just wanted to see if the following parts will fit since more is needed. 3.40" stroker crankshaft (M-6303-C340), Sportsman Rods, 1.090" CD Pistons. If it dosnt fit, do you have any sugestions? Thanks 0 answer
    will any 4 valve heads fit? 0 answer
    Is this block able to pair with the scat 300ci stroker kit? what would you recommend as far as machining? Thank you 0 answer
    Are significant mods necessary to drop this Block into an 87-93 Foxbody? Also what 5 speed transmission would you recommend to compliment this potential project? 1 answer
    I have an SCTx4 tuner can I get a Bama tune for this block? 1 answer
    Will this block reuse 4V heads from a 4.6 cobra mustang? 1 answer
    What size of pistons am I going to need for this block? 1 answer

    Recommended For You

    Customer Reviews (8) Write a Review

    Overall Rating 4.1

    out of 5 stars

    Installation Time:Weekend

    Installation Cost:$1000+

    • Performance Gain 4.75 4.8
    • Fit 4.875 4.9



    • 4/5

      March 07, 2019

      Do your homework

      Overall nice block, only problem is no one can tell me what 4 valve timing cover fits this.I have all new parts for this block except the cover ,i have 2, should fit but don`t.If your looking to build a 4 v motor don`t use this.

      WilliamD

      Year: 2007 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $1000+

      February 12, 2019

      FP Boss 5oh Block

      Everything has gone smooth from the machining to the install. Great upgrade after my stock block was bad the stock heads minor upgrades Ford GT/GT500 rocker arms and new lifters, and upgraded to Diamond Pistons. Made 619/572 on e85 Lethal Performance Division X RSFS Dual Walbro's 465lph with a 3.25" pulley on the 2.6 Kenne Bell. Not 100 on the boost 17,18lbs.

      PoloT

      Year: 2003 Submodel: Cobra

      Helpful (2)

    • 4/5

      September 17, 2018

      Great all bore 5.0

      I think for modular, Pre coyote, this is about as good as it gets, less than liners and machine work on a aluminum block to get a big bore, cooling is improved, mains webbing is better, venting is better, the only downside is weight, about 6-10 pounds more as measured over a Romeo block, also I would not call this a true 4 bolt main, it’s 2 mains, and side bolts, also a big bore may not be the best for boost over 20. Just a heads up.

      chip

      Year: 2001 Submodel: GT

      Helpful (8)

    • 1/5

      October 23, 2017

      Beware

      There are no machine shops in my area that can mill the deck. Better make sure you have one because American Muscle won't let you return it. I know because i tried and was told ne returns. Now i have a block That's just setting.

      sm34947

      Year: 1999 Submodel: GT

      Helpful (30)

    • 5/5

      Installation Time: Full Day

      August 03, 2017

      Quality built

      This is the block you want if you want to toughen up your 4.6 at a pretty good price it is very well built strengthened in the right areas

      shaker56

      Year: 2004 Submodel: GT

      Helpful (17)

    • 5/5

      August 02, 2017

      Boss 5.0 block

      Haven't finished the build yet, however, AM shipped quickly and it looks great. We will see....

      LanceB

      Year: 2004 Submodel: Cobra

      Helpful (14)

    • 4/5

      May 17, 2014

      5.0 modular block

      This block looks great came in pre painted black, it looks great. Now its off to the machine shop to finish the deck and bore.

      jaynew83

      Year: 2002 Submodel: GT Detroit, MI, USA

      Helpful (13)

    • 5/5

      Installation Time: Weekend

      September 15, 2012

      BOSS 5.0

      Great Quality!!! Why have someone sleeve your old engine when you only have to do minor mashine work and have a solid block!!! Very fast shipping for the size of the item and direct drop shipment from FORD RACING.

      572ysc

      Year: 1998 Submodel: GT Culpeper, VA

      Helpful (19)

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