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- Windsor Jr. Lite 58cc - Assembled (Each)
1.437' dual spring, 125# @ seat,.600' max. lift.
Material: 355-T6 high density aluminum alloy
Valve Seats: Steel intake,hardened steel exhaust
Valve Guides: Bronze
Valve Spring Seats: Machined for 1.440' springs
Valve Size: 1.940' x 1.600'
Rocker Arm Studs: Accepts 7/16' screw-in studs
Exhaust Flange: Stock port locations, Dual bolt pattern accommodates large custom headers
Included In Assembly: Manley Street Flo stainless steel valves (1-piece forged, with undercut stems and swirl-polished heads), PC-style valve seals, 1.440' valve springs, Manley 7° chrome moly retainers, keepers, screw-in rocker arm studs and pushrod 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 #9333PT or #1011-2 or equivalent. CAUTION: #1011-1 is NOT recommended.
Puhshrods: Requires heat-treated pushrods
Spark Plugs: Accepts 14mm .750' reach gasketed 5/8' hex (Champion #771 or #785) or equivalent
Intake Gasket: Fel-Pro #90361 or equivalent
Exhaust Gasket: Fel-Pro #1415 or equivalent
Maximum Spring Seat Depth (from inside step): .030'
Maximum Spring Diameter: 1.550'
Approximate Milling Guidelines(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.
Note: Aftermarket 286/302 heads including Brodix, Edelbrock, Ford Motorsport and World Products with 1/2' bolt hole diameters (block is 7/16' bolt hole), except 397-M-6049-P303 ('P' style head). Require 350-9680 inserts with 350-8552 head bolt or 350-9680 insert with 070-154-3601. If head studs are desired use 070-154-4005 (includes inserts).
Knock Some 50 lbs. Off The Top of Your 5.0!
Here's a lightweight aluminum version of the popular Windsor ''Jr.'' cylinder head for Ford 5.0L engines that will improve the performance of a Mustang or other vehicle by eliminating some 50-lbs. of power-robbing front end weight. 180cc intake runners are some 40% larger than the OEM Ford 124cc size - and obviously flow a substantially larger air/fuel charge. Valves are also larger than factory 1.840'' x 1.550'' models, with 1.940'' intakes and 1.600'' exhaust valves utilized (complete assemblies come with Manley Street-Flo stainless steel models that have narrowed stems for improved flow). These heads provide significant power gains in 289-302ci engines, and can benefit from headers and an upgraded intake system.
Material: 355-T6 high density aluminum alloy
Valve Seats: Steel intake, hardened steel exhaust
Valve Guides: Bronze
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 stainless steel valves with swirl-polished heads, ring and band-style seals, valve springs, Manley 7° chrome moly retainers, keepers and guide plates.
Rocker Arms: Aftermarket rocker arms recommended. However, if stock rockers are to be retained, use stud-mounted rocker arms
Head Gaskets: Fel-Pro 375-MS9333PT or 375-1011-2 or equivalent. Caution: 375-1011-1 is NOT recommended.
Pushrods: Requires heat-treated pushrods.
Spark Plugs: Accepts 14mm .750'' reach gasketed 5/8'' hex (NGK 7496, 4930 or equivalent)
Intake Gasket: Fel-Pro 375-90361 or equivalent
Exhaust Gasket: Fel-Pro 375-1415 or equivalent
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.
