Mazdaspeed Engine - 550HP Street

Rated for 550hp-600hp max for street or 500bhp for race application. Please indicate if this engine will be utilized for racing use OR street use OR both. Reference "Selecting an Engine Package." 

Includes: 

• Overspeed Motorsports custom 87.75mm Manley Forged Pistons w/.180 wall pin. Rings file fit and deburred per application. 
• Manley H Beam connecting rods with custom oiling slots cut in to the big end faces of the rod to provide positive cylinder and pin oiling. 
• Stock Camshafts
  • Kelford B grind option 
• Stock springs inspected and shimmed to 40lbs seat pressure at install height. (good for 7800rpm). Crower springs and titanium retainers are also available as an added option.
• Valve guides replaced and diamond honed to spec.
• 3 angle performance valve job maintaining under .0005in guide to seat concentric. 
• Surface head and block to head gasket manufacturer specs.
• Bore and final hone block with torque plate installed at final head stud tq spec. Maintaining .0001in top to bottom. Cylinder finish verified with profilometer. 
  
  
• Micropolish crankshaft and camshafts.
• Line hone mains with ARP S2000 stud kit installed.
• Complete engine Aquablast vapor hone surface treatment.
• All new Mazda gaskets and seals are utilized for the assembly unless performance upgrades are specified.
• All new Mazda timing components utilized for the assembly. 
  
  
• 2.3 Ecoboost oil pump.
• King Racing main and rod bearings.
• Overspeed Motorsports custom ARP L-19 head stud kit.
• All stock oil galley plugs removed and tapped for NPT plugs.
• Balance shaft delete.
• Crank trigger pinned in place with a tool steel pin.
• All components ultrasonic cleaned prior to assembly.
• All components utilized in our manufacturing process go through our in house QA inspections prior to being utilized for our product. 

We provide a 2 year 24k mile engine only warranty with this package. All warranty claims are to be repaired by Overspeed only unless given prior authorization.