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Ford Performance Short Block 427ci. Boss

Ford Performance M-6009-427F
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Estimated to ship directly from the manufacturer on 02/21/19
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Ford Performance Short Block 427ci. Boss $5,502.99
Ford Racing Short Block
  • 427ci. Boss
  • Cast Iron
  • 4.125" Bore
  • 4.000" Stroke
  • 4-Bolt Main
  • 9.5" Deck Height

  • Ford Performance M-6009-427F Details

    Small Block

    • 427 cubic inches
    • Boss 4-bolt main block M-6010-BOSS35195 9.5" deck height
    • Mahle forged aluminum 4.125" bore pistons with valve reliefs for Z304, N351, GT-40 and other inline valve Windsor cylinder heads. 17cc effective dish volume, check piston to valve clearance
    • 0.005" below piston to deck height nominal
    • SCAT 4.000" stroke forged steel crank
    • SCAT forged steel H beam connecting rods with floating pin
    • Hydraulic roller camshaft compatible
    • Neutral Balance rotating assembly
    • Recommended cylinder head fasteners M-6065-BOSS head bolts, M-6014-BOSS studs, or M-6014-Z304 studs, depending on application
    • Designed for M-6049-X306//X307/C3/D3/Z304DA cylinder heads. Not designed for production 302/351W or M-6049-Y302/Y303/X302/X303/X304/X305 cylinder heads
    • Assembled and ready for your heads, cam and timing chain set
    • Requires head gaskets M-6051-R351
    • Built with all NEW PARTS
    • Photo and specs may vary


    Flywheel Included
    Engine Balance
    Connecting Rod Beam Style
    Connecting Rod Material
    Forged 4130 steel
    Crankshaft Material
    Forged 4340 steel
    Deck Height (in.)
    Engine Block Material
    Cast iron
    Flexplate Included
    Harmonic Balancer Included
    Main Journal Type
    351 Cleveland mains
    Oil Pan Included
    Piston Material
    Forged aluminum
    Sold individually
    Short Block Piston Style
    Flat top
    Timing Cover Included
    Rear Main Seal Style
    Manufacturer's Part Number:

    Build Your Engine Exactly How You Want It From The Block Up

    Ford Racing offers these short blocks to allow anyone to build an engine for their Ford exactly how they want it. The Ford Short Block is the perfect start to any Ford engine build. Short block offerings start at the versatile modular 5.0L Stroker block, all the way up to the base of a 460CI. When using Ford Racing Short Blocks to build your next engine, the options for performance are endless!

  • Start Your New Engine Build With High Quality Blocks
  • Precision Engineered To Provide Maximum Performance
  • Endless Power Possibilities

  • Will trick flow heads be ok with this block? Can I run a solid lift cam? What is the compression with 64cc heads

    Asked by: Tom696
    Yes, the heads will work with this engine. The heads you choose need to have a valve spring to match your cam specs. The compression will be approximately 10.6:1 with 64cc heads.
    Answered by: Rusty B
    Date published: 2018-03-21
    • y_2018, m_8, d_18, h_1CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.8
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    • loc_en_US, sid_10001_10001_1280012, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs
    Some parts are not legal for use in California or other states with similar laws / regulations