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  Home > SPEED SHOP > FORD RACING PARTS >

  BOSS 351 BIG BORE CYLINDER BLOCK
 


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Our Price: $1,899.95


Product Code: M-6010-BOSS351BB

Block Machining Options

Full CNC race preperation of a 4 bolt aftermarket block. [Add $750.00]Includes align honing of the mains, boring and multi stage torque plate honing of the cylinders, finishing of the lifter bores, installation of coated premium cam bearings, deck dowels, trans dowels, an oil filter adapter and is painted gloss black. Contact a sales rep for your bore requirements and other options.

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Description
 
BOSS 351 BLOCK 9.5" DECK
The new Ford Racing Boss 351 Big Bore block is a great foundation to start building a high performance 4.125" bore 351 Windsor. Although this item is only rough machined from Ford Racing, it is also available Level 20 CNC prepped and ready for your rotating kit. Add our billet aluminum Main Support System for the ultimate combination of strength and durability!
Features
  • The legend is reborn with this all new 351 block! Stronger than the original!
  • 4.125" bore capacity (sonic check recommended), finished at 4.12" rough bore
  • 9.5" deck height, finished at 9.500" plus .010" to .015"
  • Maximum recommended stroke 4.250", clearance dependent on crankshaft/connecting rod manufacturer
  • Splayed 4-bolt main on 2, 3, 4, main caps
  • 2-bolt main on 1 and 5 main caps
  • Main bearing bores finished to low limit
  • Finished lifter bores
  • Machined to accept factory roller lifter guides and lifter guide retainer
  • Revised oiling and cooling system passageways
  • Siamese bore with drilled coolant crossover
  • Increased bulkhead material
  • Threaded core and galley plugs (straight thread port plugs with O-ring)
  • ½" head bolts
  • 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
  • Weighs approximately 205 lbs.
  • Great price and value
  • The foundation for 9.5" deck projects