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Ford Performance 347 CI Boss Short Block

Market Price $5,142.99 You Save 12% ($593.00)
Our Price

$4,549.99 (each)

+ $99.00 Handling Fee with FREE Shipping
  • Item 399341
  • MPN# M-6009-347

In Stock Ships same business day. Choose options to add to cart

Features & Details

  • Ideal for Building an 8.2 in. Deck Engine
  • Based on the Ford 302 Small Block
  • Displacement of 347 Cu. In.
  • Comes Pre-Assembled and Ready for Installation
  • Compatible with Most Aftermarket Performance Cylinder Heads
  • Built with All New Parts
  • Sold Individually
  • Requires Head Gaskets M-6051-CP331 or M-6051-S331 – Sold Separately
  • Fits All Ford Mustang Models
A Great Foundation For Mustang Engines. The Ford Performance 347 CI Boss Short Block lets you build your ideal engine with your choice of heads, cam, intake, and oil pan. This block is used in Ford Performance 347 Sealed Racing Crate Engines. It features high-quality performance components like forged crankshafts, forged I-beam connecting rods, and the BOSS 302 block. With such a high-quality performance foundation, building your ideal engine is that much easier.

Assembled with All New Parts. The Ford Performance engineers ensure that all the best parts go into the 347 CI Boss Short Block. It incorporates parts from trusted vendors like SCAT® and Mahle® to give it the performance and reliability that a racing engine needs.

Pre-Assembled and Ready for Installation. This short block is already assembled and ready for your heads, cam, and timing chain set. Note that the pistons are designed for 20-degree valve angle heads. Installation requires head gaskets M-6051-CP331 or M-6051-S331 which are sold separately.

Application. The Ford Performance 347 CI Boss Short Block is designed to fit all Ford Mustang models.

Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 Details

What's in the Box
  • (1) Assembled Short Block
Installation Info
Will it fit my Mustang?
  • Foxbody - 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93
  • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17
  • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17
  • Bullitt - 01, 08, 09
  • Cobra - 94, 95, 96, 97, 98, 99, 01, 03, 04, 93
  • Mach 1 - 03, 04
  • GT500 - 07, 08, 09, 10, 11, 12, 13, 14
  • Boss 302 - 12, 13
  • EcoBoost - 15, 16, 17
  • GT350 - 16, 15, 17

Customer Photos

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