Ford Performance M-6049-M52B High-Performance 5.2L Cylinder Head:

• Upgraded version of Ford Performance M-6049-M52A 5.2L cylinder head
• Production 2021 GT500 LH cylinder head
• Improved high-performance 5.2L head castings provide added strength and increased size of central cooling passages, to support higher horsepower engine builds  
• Fully CNC ported intake ports, exhaust ports, and combustion chamber 
• Larger port sizing than the 2015-2017 5.0L Coyote cylinder heads 
• 38.2 mm intake valve and 32.5 mm exhaust valve
  • For reference, 2015-2017 5.0L Coyote valve sizes are 37.3 mm intake, 31.8 mm exhaust
• New valvetrain geometry allows for higher valve lift 
• Lightweight hollow-stem intake valves and sodium-filled exhaust valves 
• Stiffer exhaust springs
• Upgraded valve guides
• Upgraded exhaust valve seats
• Loaded head assembly minus camshafts, rocker arms and lash adjusters 

Ford Performance M-6049-M52B High-Performance 5.2L Cylinder Head Notes:

• Use on a 5.0L Coyote requires unique camshaft due to valvetrain geometry, see M-6550-M52 or M-6550-M52A (each sold separately)
• Requires 5.2L rocker arms and lash adjusters, see  M-6564-M52 (sold separately)
• Installation of 5.2L heads on 5.0L engine requires piston modification for proper piston to valve clearance

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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