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Ford Performance 347 Cubic Inch Boss Short Block

Item 399341
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Market Price $5,864.69 You Save 12% ($674.70)
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      Product Information

      Features, Description, Q&A, Specs & Installation


      • 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.


      Ford Performance M-6009-347

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Assembled Short Block

      Tech Specs


      Reviews of Ford Performance Engine Products (100+)

      Reviews of Ford Performance Engine products have an average rating of 4.8 out of 5

        Questions & Answers

        10 More Questions

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