Bolt On To Your 1987-94 Mustang With No Loss Of Compression!

The Windsor Jr. head features 180cc intake runners that combines high velocity and superior flow to produce excellent torque and throttle response in stock to mildly modified 5.0L engines. The 58cc combustion chamber is sized for true bolt-on compatibility, and has been ''tweaked'' to optimize efficiency. Windsor Jr. cast iron cylinder heads provide a very cost-effective solution to getting serious power from a Ford 5.0L motor without spending a ton of money. And when it comes to value, you can't beat the assembly packages from World. Top grade components, like Manley Street-Flo stainless steel valves, are used as your assurance of relability, with World passing bulk buying advantages right through to customers. If you're looking for a cost-effective, bolt-on cylinder head that works, the Windsor Jr. is for you! 50-state legal.

Technical Specifications

Material: High density cast iron
Valve Seats: Integral intake, hardened steel exhaust
Valve Guides: Integral cast iron
Valve Spring Seats: Machined for 1.550'' springs
Valve Size: 1.940'' x 1.600''
Rocker Arm Studs: 3/8'' screw-in studs
Exhaust Flange: Stock port locations. Dual bolt pattern accommodates large custom headers.

Included In Assembly: Manley Street-Flo forged stainless steel valves with swirl-polished heads, ring and band-style seals, valve springs, Manley 7° chrome moly retainers, keepers and guide plates.

Recommened Installation Items
Rocker Arms: Aftermarket roller rocker arms recommended. However, if stock rockers are to be retained, use stud mounted rockers.
Head Gaskets: Fel-Pro 375-9333PT or 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, or 4324) or equivalent.
Intake Gasket: Fel-Pro 375-90361 or equivalent
Exhaust Gasket: Fel-Pro 375-1415 or equivalent

Machine Shop Specifications
Maximum Valve Diameter: 1.940'' x 1.600'' (Windsor)
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.