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World Windsor Jr. Cast Iron Ford SB Head
Designed to combine high velocity and superior flow. These heads feature RightCast technology assuring optimum port accuracy, screw-in rocker studs, 1.550" spring pockets, dual bolt pattern exhaust and highly efficient combustion chambers.
Unassembled kits feature stainless steel valves, hi-performance springs (hydraulic up to .510" lift), 7 degree retainers and locks, seals, ARP rocker studs, and guide plates.
Part Type: Cylinder Head
Application: Ford Small Block
Cylinder Head Material: Cast Iron
Bare or Assembled: Unassembled Kit
Combustion Chamber Size: 58cc
CNC Machined Combustion Chambers: No
Intake Valve Angle: 20
Exhaust Valve Angle: 20
Intake Port Volume: 180cc
CNC Machined Intake Port: No
Intake Port Flow:
Intake Port Location: Standard
Intake Port Shape: Rectangular
Intake Port Dimensions: 1.980" x 1.090"
Suggested Intake Gaskets:
Exhaust Port Volume: 64cc
CNC Machined Exhaust Port: No
Exhaust Port Flow:
Exhaust Port Location: Standard
Exhaust Port Shape: Square
Exhaust Port Dimensions: 1.300" x 1.220"
Suggested Exhaust Gaskets:
Suggested Spark Plug: .460" reach, 5/8" hex plug
Valve Guides: Yes
Valve Guide Spacing: Ctr-Ctr 1.860" Stock Location
Valve Stem Diameter:
Valve Seats: Intake: integral cast iron seat, Exhaust: Durabond Powdered metal
Valve Job: Multi-Angle
Intake Valve Diameter: 1.940"
Intake Valve Included: Yes
Exhaust Valve Diameter: 1.600"
Exhaust Valve Included: Yes
Suggested Valve Length:
Valve Spring Pockets: 1.550 (can be cut to 1.625 MAX)
Valve Springs Included: Yes, 1.250" Single with Damper
Valve Spring Application: Hydraulic/Mechanical Flat Tappet, 120lbs. Seat, 300lbs. Open, .510" max lift
Valve Springs Retainers Included: Yes
Valve Locks Included: Yes
Valve Seals Included: Yes
Rocker Studs Included: Yes
Guide Plates Included: Yes
Valve Cover Mounting Style: Perimeter bolt
Steam Holes Drilled: No
Heat Crossover: Yes
Suggested Head Bolts: ARP 154-3607
Suggested Head Studs: ARP 154-4005
Suggested Stud Girdle: Jomar 1126
Head Bolt Torque with Oil: 7/16": Upper Row 80 ft./lbs. Lower Row 70 ft./lbs. 1/2": All bolts 100 ft. lbs.
Rocker Stud Torque with Oil: 55 ft./lbs.
Intake Bolt Torque with Oil: 16-18 ft./lbs.
Manufacturer: World Products
Manufacturer's Part Number: 053030 Unassembled
Weight:
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold as Pair
*Note: Assembly Required
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