427 CUBIC INCH BOSS SHORT BLOCK

427 CUBIC INCH BOSS SHORT BLOCK
M-6009-427F
Retail
$5,449.00
Sold in Units of
Each (1)
Instruction Sheet

WARNING:
This part has been designed and is intended for off-highway application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations relating to emission requirements and motor vehicle safety standards.
Proudly Made in the USA

The Ford Racing 427 shortblock lets you build it your way by adding your choice of heads, cam, intake and oil pan.  It's the perfect foundation to build a powerful 9.5" deck engine for your vintage muscle car, street rod, Fox Body or Late Model Mustang.  This is the same shortblock used in the 575 HP Z427 crate engine. Nothing but the best parts are used inside including: forged crankshaft, forged I-beam connecting rods with floating piston pins and the BOSS 351 block. This short block is hand assembled with performance clearances in the US.  The 427 shortblock fits many of the vehicles originally built with Windsor and Cleveland small blocks. 

  • Engine type:  351 based small block Ford
  • Displacement (cu in):  427
  • Bore x stroke (in):  4.125" bore x 4.00" stroke
  • Block: Boss 4-bolt main block M-6010-BOSS35195  9.5" deck height
  • Piston to Deck Height: .005" below piston to deck height (nominal)
  • Crankshaft: SCAT® Forged Steel: 4.000" stroke
  • Connecting rods:  SCAT® forged steel H beam connecting rods with floating pin and ARP® bolts
  • Pistons:  Mahle® forged aluminum, with reliefs for Z304D, Z304P, N351, and other inline valve Windsor cylinder heads.  17 cc piston dish.  Check piston to valve clearance.
  • Hydraulic roller camshaft compatible
  • Internally balanced
  • Recommended cylinder head fasteners M-6065-BOSS head bolts or M-6014-BOSS studs depending on application
  • Most aftermarket performance cylinder heads are compatible with this short block.  Ford Racing short blocks are built with pistons designed for 20° valve angle heads and will fit stock or spread valve guide centerlines. 
  • Designed for M-6049-X306//X307/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
  • 351W bolt pattern, oil pan and timing cover
  • High-performance harmonic balancer M-6316-D302 is recommended
  • Built with all NEW PARTS
  • Photo and specs may vary
Part Type
Engine: Short Blocks
Instruction Sheet
Warranty Availability
Not Available
Packaged Dimensions
31" x 24" x 25
Packaged Weight
304 lb(s)
Part Type
Engine: Short Blocks
UPC Code
756122117231
Catalog Page Number
155
Country of Origin
United States
California Executive Order
No