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World Products Small Block Chevy S/R Cast Iron Cylinder Heads


World Products
World Products Small Block Chevy S/R Cast Iron Cylinder Heads

Product images may differ from actual product appearance.

An Economical Stock Replacement Head.

There are many compelling reasons why it's smart to use S/R cylinder heads instead of worn out junkyard parts or new OEM castings. These World Products heads come with hardened steel exhaust seats compatible with unleaded gasoline. The extra thick decks and walls improve reliability. The machined valve cover rails help to eliminate leaks.

Technical Specifications
  • Material: High density cast iron
  • Valve Seats: Integral intake,hardened steel exhaust
  • Valve Size: 1.940'' x 1.500''
  • Accessory Flange: Stock locations, 7-bolt universal pattern
  • Included In Assembly: Erson stainless steel valves, ring and band valve seals, valve springs, Erson 7° chrome moly retainers, and keepers.

    Recommended Installation Items
  • Head Gaskets: Fel-Pro #1003 (265-350) or equivalent.
  • Pushrods: OEM can be used. Hardened not required
  • Screw-in Studs: 3/8" or 7/16" with 7/16"-14 base thread
  • Pushrod Guidplates: These heads are not machined for guide plates. If desired Flat 5/16" Erson 601 or equivalent can be used after .125" is milled off the stud bosses and the push rod holes opened
  • Spark Plugs: Accepts 14mm-5/8'' .460'' reach tapered seat (Accel 274 or 276, AC-Delco 43TS or 44TS, Champion #670 or #802) or equivalent
  • Intake Gasket: Fel-Pro #1204 or #1256 or equivalent
  • Exhaust Gasket: Fel-Pro #1404 or #1405 or equivalent

    Here are the OEM casting numbers that World's S/R small block heads replace:
    World #043600 = GM 333882, 460703, 462624, 468642, 3911032, 3927186, 3927187, 3932141, 3946813, 3947041, 3970126, 3973414, 3973493*, 3974387, 3981598*, 3986339, 3998920, 3998991, 3998993, 3998997, 14020516, 14020517, 14020556, 14071114, and 14079261.

    World #043610 = GM3795896, 3814482, 3827185, 3884520, 3890462, 3911032, 3917290, 3917291, 3927186, 3932441, 3946813, 3973370 and3998993 *=Requires drilling for steam holes


  • 6 Products
    Small Block Chevy 305ci S/R Cast Iron Cylinder Heads

    955-042650
    Small Block Chevy 305ci S/R Cast Iron Cylinder Head
  • 170cc Intake Ports
  • 58cc Combustion Chambers
  • Cut for 1.940'' Int/1.500'' Exh Valves
  • Bare Head, Sold Individually
  • $315.99
    Order Today Ships 09/25/14

    955-042650-1
    Small Block Chevy 305ci S/R Cast Iron Cylinder Head
  • 170cc Intake Ports
  • 58cc Combustion Chambers
  • 1.940'' Int/1.500'' Exh Valves
  • 1.250'' Valve Springs, .560'' Max Lift for Hydraulic Cam
  • Assembled, Sold Individually
  • $542.99
    Ships
    Small Block Chevy S/R Cast Iron Cylinder Heads - 67cc Combustion Chambers

    955-043610
    Small Block Chevy S/R Cast Iron Cylinder Head
  • 67cc Combustion Chambers
  • Cut for 1.940'' Int/1.500'' Exh Valves
  • Bare Head, Sold Individually
  • $315.99
    Order Today Ships 09/25/14

    955-043610-1
    Small Block Chevy S/R Cast Iron Cylinder Head
  • 67cc Combustion Chambers
  • 1.940'' Int/1.500'' Exh Valves
  • 1.250'' Valve Springs, .560'' Max Lift for Hydraulic Cam
  • Assembled, Sold Individually
  • $542.99
    Order Today Ships 09/25/14
    Small Block Chevy S/R Cast Iron Cylinder Heads - 76cc Combustion Chambers

    955-043600
    Small Block Chevy S/R Cast Iron Cylinder Head
  • 76cc Combustion Chambers
  • Cut for 1.940'' Int/1.500'' Exh Valves
  • Bare Head, Sold Individually
  • $315.99
    Order Today Ships 09/25/14

    955-043600-1
    Small Block Chevy S/R Cast Iron Cylinder Head
  • 76cc Combustion Chambers
  • 1.940'' Int/1.500'' Exh Valves
  • 1.250'' Valve Springs, .500'' Max Lift for Hydraulic Flat Tappet Cam
  • Assembled, Sold Individually
  • $542.99
    Ships

    6 Products