The Most Powerful Head Designed For 5.0 Ford Applications!

Actual flow bench and dyno testing confirms that World's Windsor Sr. 200 cast iron heads are more powerful than the competition. It's also important to know that due to World's RightCast technology and CNC machining expertise (all heads are made to rigid QS-9000 specifications). The Windsor Sr. 200 head is compatible with all standard-type pistons. What's more, efficiency is so good that they're covered by C.A.R.B. EO #D-343, and fully 50-state legal. To achieve the optimum power potential from World's Windsor Sr. 200 heads, you'll need an improved intake and exhaust system, more aggressive camshaft, and upgraded ignition system. It's absolutely the most potent head in its class for the 5.0L!

Works with stock type piston designs, and does not require changing pistons to obtain combustion efficiency.

Material: High density cast iron
Valve Seats: Integral intake, hardened steel exhaust
Valve Guides: Integral cast iron
Valve Spring Seats: Machined for up to 1.550'' springs
Valve Size: 2.020'' x 1.600''
Rocker Arm Studs: 3/8'' or 7/16'' (-3 models) screw-in studs
Exhaust Flange: Stock port locations. Dual bolt pattern accommodates large custom headers.

Included In Assembly: Manley Street Flo (-1 models), RaceMaster (-2 models) or Severe Duty (-3 models) forged stainless steel valves with swirl-polished heads, ring and band-style seals (-1 and -2 models) or PC style seals (-3 models), valve springs, Manley 7° chrome moly retainers (10° in -3 models), keepers and guide plates.

Rocker Arms: Aftermarket roller rocker arms recommended. However, if stock rockers are to be retained, use stud-mounted rocker arms.
Head Gaskets: Fel-Pro 375-9333PT or 375-1011-2 or equivalent. Caution: 375-1011-1 is not recommended.
Pushrods: Requires heat-treated pushrods
Spark Plugs: Accepts 14mm .460'' reach tapered seat 5/8'' hex (NGK 2817, 2405, 4323 or equivalent).
Intake Gasket: Fel-Pro 375-90361 or equivalent.
Exhaust Gasket: Fel-Pro 375-1415 or equivalent.

Maximum Valve Diameter: 2.080'' x 1.600''
Maximum Spring Seat Depth (from inside step): .030''
Maximum Spring Diameter: 1.550''
Approximate Milling Guideline (varies with depth): .007'' per cc
Maximum Flat Mill Depth (up to intake seats): .040''
Maximum Angle Mill: .175'' depth

Note: These specifications are for reference only. ALWAYS measure before machining.