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Ford Performance 302 CI 345 HP Boss Crate Engine w/ B303 Camshaft

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Features & Details

  • Crate Engine
  • Features B303 Camshaft Manual Transmission
  • 302 Cubic Inches
  • 345 Horsepower with 9.0:1 Compression Ratio (Nominal)
  • BOSS 4-Bolt Main Block M-6010-BOSS302
  • Forged Pistons
  • Includes Forged Steel Crankshaft and Forged Steel Connecting Rods
  • Hydraulic Roller Camshaft M-6250-B303 Included
  • Comes with .498" Lift Intake and Exhaust
  • Double Roller Timing Chain Set M-6268-A302
  • Includes Ford Performance Aluminum GT-40 "X" Cylinder Heads M-6049-X306 with 1.94" Intake Valves and 1.54" Exhaust Valves
  • 60:1 ratio M-6564-B351 Roller Rocker Arms Included
Race-Quality Crate Engine. Take your Mustang to the next level with the Ford Performance 302 CI 345 HP Boss Crate Engine with B303 Camshaft. This race quality crate engine has all you need to lay a sturdy foundation for street applications.

Built for Street Power. The Boss Crate Engine is designed to give you the power you need for competitive street driving. It produces an astonishing 345 horsepower with 9.5:1 compression ratio. Its hydraulic camshaft M-6250-B303 helps produce extra power with its .480" lift intake and exhaust. In addition, its GT-40 "X" M-6049-X306 cylinder heads ensures optimum airflow to the engine to further boost performance and fuel efficiency.

Engineered to Last. The 302 CI 345 HP Boss Crate Engine has been manufactured with all-new parts. It comes with forged pistons, forged steel connecting rods, and a forged steel crankshaft. It also features roller rocker arms, a double-timing chain, and a rear sump oil pan for a powerful naturally aspirated engine performance.

Note: This Boss crate engine has no intake manifold or distributor. The MSD part no: M8598 is recommended with this engine.

Important Note: The Ford Performance 302 CI 345 HP Boss Crate Engine with B303 Camshaft is made for competition use only. Installation of this engine on vehicles driven on public roads and highways may violate US and Canadian vehicle emissions laws.

Application. The Ford Performance 302 CI 345 HP Boss Crate Engine with B303 Camshaft has been 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 2018 2019 Details

CA Residents: Warning: California's Proposition 65

What's in the Box
  • (1) Crate Engine
Installation Info
Tech Specs
Will it fit my Mustang?
  • Boss 302 - 12, 13
  • Bullitt - 01, 08, 09, 19
  • Cobra - 93, 94, 95, 96, 97, 98, 99, 01, 03, 04
  • Cobra R - 93, 95, 00
  • EcoBoost - 15, 16, 17, 18, 19
  • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19
  • GT350 - 15, 16, 17, 18, 19
  • GT350R - 15, 16, 17, 18, 19
  • GT500 - 07, 08, 09, 10, 11, 12, 13, 14
  • LX - 87, 88, 89, 90, 91, 92, 93
  • Mach 1 - 03, 04
  • Other - 79, 80, 81, 82, 83, 84, 85, 86
  • 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

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Questions & Answers (4)

4 Top Rated Questions

It comes with the Transmission correct? I'm very interested but i don't want to buy a separate transmission.

  • This will include the Ford Performance 302 CI 345 HP Boss Crate Engine w/ B303 Camshaft for use with a manual transmission, a transmission will not be included.

Helpful (0)

Will this work for a 1973 grande?

  • The Ford Performance 302 CI 345 HP Boss Crate Engine will work with a 1973 Mustang, however some components such as the oil pan and oil filer adapter may need to be changed for your chassis.

Helpful (0)

Can you use a stock 2002 gt transmission? If not, what transmission is required? Can you also tell me what additional parts I need to complete this build for a 2002 gt?

  • The Ford Performance 302 CI 345 HP Boss Crate Engine can be used with the OEM transmission if a 5.0 Bolt pattern bell housing is installed to replace the 4.6 pattern version on your current transmission. This swap will require significant modifications, including replacing the k member, motor mounts, ecm and engine harness wring, exhaust, and a number of additional components. This is not a common swap, so not a lot of info is out there that has been verified.

Helpful (0)

What intakes and headers fit this engine?

  • The Ford Performance 302 CI 345 HP Boss Crate Engine will accept all standard 5.0L OHC headers and intake manifolds. 5.0L DOHC/Coyote intakes and headers will not work.

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Customer Reviews (1) Write a Review

Overall Rating 4

out of 5 stars

  • Performance Gain 5 5
  • Fit 3 3



  • 4/5

    February 09, 2018

    1992 lx build

    Great crate motor would reccomend for a mild build fun and fast great hp increase from stock 302 5.0

    RobertW

    Year: 1992 Submodel: LX

    Helpful (7)

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