Ford Performance 427 Cubic Inch Aluminum Boss Short Block

M-6009-427A

Want to build a powerful Ford engine for your vintage muscle car, street rod, Fox-body or late-model Mustang? A Ford Performance short block is the perfect foundation. Ford Performance Engineers have taken care of the toughest part of building a new engine by designing a strong a durable short block that offers a wide range of power possibilities. We use only the best parts for our short blocks, like a forged steel crankshaft, forged H-beam connecting rods with floating piston pins, forged Mahle pistons, and the Ford Performance aluminum block. And every Ford Performance short block is hand assembled in the U.S. with performance clearances - these aren't assembly line truck engines made by machines!

• Engine type: 351W based small block Ford
• Displacement: 427 cubic inches
• Bore x stroke (in): 4.125" bore x 4.00" stroke
• Block: Ford Performance Aluminum 4-bolt main 9.5" deck height M-6010-Z351
• 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
• .005" below piston to deck height nominal
• SCAT 4.000" stroke forged steel crank
• SCAT forged steel H beam connecting rods with floating pin and ARP bolts
• Hydraulic roller camshaft compatible
• 0.060-inch oil galley restrictors included for solid roller cam applications
• Neutral Balance rotating assembly
• Uses standard Windsor timing cover M-6059-D351
• Uses standard Windsor oil pan flange
• Oil pan and timing cover are a 351W bolt pattern
• Recommended cylinder head fasteners M-6065-BOSS head bolts, M-6014-BOSS studs, or M-6014-Z304 studs, depending on application
• Most aftermarket performance cylinder heads are compatible with this short block. Ford Performance short blocks are built with pistons designed for 20 degree valve angle heads and will fit stock or spread valve guide centerlines.
• 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
• High performance harmonic balancer M-6316-D302 is recommended
• Built with all NEW PARTS
• Photo and specs may vary