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Ford Performance BOSS 302 4.125" BIG BORE Block
Ford Performance BOSS 302 4.125' BIG BORE Block
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Ford Performance BOSS 302 4.125" BIG BORE Block

Part Number M-6010-B302BB
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$2,995.00
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Description
    The legend is reborn with the 302 big bore block! Stronger than the original! Block is Ideal for both high horsepower and endurance applications

  • 4.125" bore capacity, finished at 4.115" rough bore. Also available in standard bore version, part number: M-6010-BOSS302
  • 8.2" deck height, finished at 8.200" plus .010" to .015"
  • Designed with optimized cylinder wall length for stroker applications up to 3.5" with no grinding or clearancing.  (Depends on crank/rod manufacturer)
  • Splayed 4-bolt main on 2, 3, 4, main caps
  • 2-bolt main on first and fifth main caps
  • Main bearing bores finished to low limit
  • Finished lifter bores
  • Machined to accept factory roller lifter guides and lifter guide retainer
  • Fits factory 1979 - 1995 Mustang oil pan with custom oil pickup tube, part number: M-6622-BOSS302
  • NASCAR inspired front oil feed on both lifter galleys.
  • Revised cooling system passageways
  • Siamese bore
  • Increased bulkhead material
  • Threaded core and galley plugs (straight thread port plugs with O-ring)
  • Requires special length 1/2" head bolts M-6065-BOSS or head studs M-6014-BOSS recommended with M-6049-X306/307/Z304DA heads
  • 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
  • Uses common OD cam bearings M-6261-J351/R351
  • Unique cam plug M-6026-S351 included
  • M-6051-S331 or M-6051-CP331 head gasket recommended
  • Designed to be compatible with the original 302 and 351W blocks and includes the following features:
  • Designed to use stock type timing cover, timing Cover M-6059-D351 recommended (includes fuel pump provision)
  • Fits factory Mustang oil pan with custom oil pick-up tube M-6622-BOSS302
  • Retains clutch cross shaft pivot hole
  • Original Style oil filter location
  • Original motor mount boss locations
  • Original bell housing pattern
  • Weighs approximately 163 lbs.
  • Great price and value
  • The foundation for 8.2" deck projects

Proven performance - used in Ford Racing sealed 347cid race engines and Ford Racing high performance crate engines, a proven winner out of the crate and thousands of laps before rebuild.


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