Ford Performance 347 Short Block Assembly w/ Boss Block by Ford Performance

Details   |  Description
  • 1979-95, 347 CUBIC INCH FORD R

Start your new engine build with a great foundation using Ford Performance's 347 short block!

Item #M6009347
MPN# M-6009-347

Your Price: $4,699.99

Market Price:$5,049.00
You Save 6.91 % ($349.01)

  Ships from supplier by Friday, June 01

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  • New Stroked Short Block
  • Increased HP & Torque
  • Pre-Assembled w/ New Parts
  • Ford Performance Quality


  • 347 Cubic Inches
  • 4 Bolt Main
  • Forged Rotating Assembly
  • Boss Block

What's in the Box

  • (1) 347 Short Block

Made in the USA

Product Description

Ford Performance 347 Short Block
Give your Mustang the perfect foundation of an engine with this Ford Performance 347 cubic inch short block! This short block comes pre-assembled with all brand new parts! Add your own camshaft, cylinder heads, timing components, etc., and you'll be ready to tear up the streets! Ford Performance starts off with a new Boss 302 engine block and then assembles it with a forged crankshaft, forged I-beam connecting rods, and forged Mahle pistons. This Mustang 347 stroker short block will be sure to kick start your high horsepower engine build.

347 Stroker Specs
-Engine type: 302 based small block Ford
-Displacement (cu in): 347
-Bore x stroke (in): 4.030" bore x 3.400" stroke
-Block: Boss 4-bolt main block M-6010-BOSS302 8.2" deck height
-Piston to Deck Height: .010" below deck (nominal)
-Crankshaft: SCAT® Forged Steel: 3.400" stroke
-Connecting rods: SCAT® forged steel I-beam connecting rods with floating pin and ARP® bolts
-Pistons: Mahle® forged aluminum, 1.5mm, 1.5mm, 3.00mm rings, valve reliefs for X306, X307, Z304DA, Z304P, N351, and other inline valve Windsor cylinder heads. 6 cc valve pockets. Check piston to valve clearance.
-Hydraulic roller camshaft compatible
-Internally balanced. Requires 0oz balance flywheel and damper.
-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 degree valve angle heads and will fit stock or most spread valve guide centerlines.
-Designed for M-6049-X306//X307/Z304DA/Z304P and N351 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-CP331 or S331
-High-performance harmonic balancer M-6316-D302 is recommended.
-High volume oil pump M-6600-D2 recommended.
-302 bolt pattern, oil pan and timing cover.
-Built with all NEW PARTS.

Ford Performance Racing Parts - NO WARRANTY - Click Here

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Vehicle Applications

Ford Mustang - 1979 (79) - 1980 (80) - 1981 (81) - 1982 (82) - 1983 (83) - 1984 (84) - 1985 (85) - 1986 (86) - 1987 (87) - 1988 (88) - 1989 (89) - 1990 (90) - 1991 (91) - 1992 (92) - 1993 (93) - 1994 (94) - 1995 (95)

About This Brand

Ford Performance
Ford Performance - Mustang Ford Racing Parts
Ford Performance Parts is the leader in performance parts and accessories for Mustang and Ford Lightning. is proud to offer Ford Racing Performance Parts for your project. Ford Racing is dedicated to manufacturing the highest quality products offered in the industry. Choose from suspension, exhaust, wheels, and other performance parts at If you want the best for your Mustang or SVT Ligtning, look no further than Ford Performance Parts!

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