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Ford Performance Boss 302 Engine Block

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Features & Details

  • 302 Cubic Inch Block
  • 4.125" Bore Capacity
  • 3.995" Finished Rough Bore
  • 8.2" Deck Height
  • Maximum Stroke 3.4"

The Legend Reborn. This all new Ford Racing Boss 302 Engine Block is the perfect starting point for building serious power. Stronger than the original this block has a 4.125" bore capacity (finished at 3.990" to 3.995" rough bore), a 8.2" deck height (finished at 8.200" plus .010" to .015"), splayed 4-bolt mains on 2, 3, 4, main caps and 2-bolt mains on first and fifth main caps, with a maximum recommended stroke 3.400"

Additional Features. Machined to accept the factory roller lifter guides and lifter guide retainer, this Boss 302 block has revised oiling and cooling system passageways and accepts the factory Mustang oil pan when used with a custom oil pickup tube.

Required Upgrades. The Boss 302 Engine Block is specifically designed for use with Ford Racing cylinder heads including M-6049-X306, M-6049-X307, M-6049-C3, M-6049-D3, or M-6049-Z304DA and requires special length 1/2" head bolts M-6065-BOSS or head studs M-6014-BOSS.

Application. This Ford Racing Boss 302 Engine Block is the perfect foundation for 8.2" deck projects whether it is a Mustang, kit car, street rod, or resto-mod.

Technical Note. This is a bare block, no internals are included.

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.

What's in the Box
  • (1) Engine
Installation Info

Customer Photos

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1 Questions / 2 Answers

Ask a Question

How much power can this handle? Obviously this is not a black and white question, but how much stronger is it and what kind of hp can it handle compared to a stock block?


  • My self I would not go over 600 hp.big bucks would could get you more, but don't trust it.


    Helpful (2)

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Customer Reviews (1) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Weekend

  • Performance Gain 3 3
  • Fit 5 5

  • 5/5

    Installation Time: Weekend

    May 17, 2013

    Boss 302 block M-6010-BOSS

    The boss 302 block is a great choice for reliable horsepower. As stated in the ford racing comments the boss block is ready to install with the exception of the final bore and hone. This block accepts all OE components, hyd roller lifter, etc. As mentioned in the ford racing comments the block will require new 1/2" special length head bolts/studs, a oil pump pick up stud which ford racing will supply free if you call them, a 1/2" to 1/4" npt adapter for the oil press sender, 4 - 3/8" lower timing cover bolts, special cam bearings J351 for standard cam journal cams and special head gaskets. The only downside to this block is the short cylinder wall depth which may be an issue for a 3.4" stroke crank depending on the piston but works great with a 3.25" stroke.


    Year: 1993 Submodel: Other Central, NJ.

    Helpful (4)

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On my most recent order from AM I had some challenges with the product installation. The customer service team at AM resolved all of my challenges quickly, efficiently and pleasantly. At all times their customer service team exceeded my expectations. I have pulled all of the other car supplier catalogs from my magazine racks except the American Muscle catalog. From now on my Mustang only rides with American Muscle. Thank you for exceeding my expectations.

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