- Engines & Components
- Cylinder Heads
- World Products Small Block Chevy S/R Cast Iron Cylinder Heads
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.
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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 276 or 276s, AC-Delco 44TS, Champion BL13Y or BL15Y) 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
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PRICE
Small Block Chevy 305ci S/R Cast Iron Cylinder Heads
World Products 042650
World Products Small Block Chevy 305ci S/R Cast Iron Cylinder Head 170cc Intake Ports
$644.88
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World Products 042650-1
World Products Small Block Chevy 305ci S/R Cast Iron Cylinder Head 170cc Intake Ports
$882.79
Estimated to ship direct from manufacturer in 24hrs
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Small Block Chevy S/R Cast Iron Cylinder Heads - 67cc Combustion Chambers
World Products 043610
World Products Small Block Chevy S/R Cast Iron Cylinder Head 67cc Combustion Chambers
$652.16
Estimated to ship direct from manufacturer in 24hrs
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World Products 043610-1
World Products Small Block Chevy S/R Cast Iron Cylinder Head 67cc Combustion Chambers
$891.04
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Small Block Chevy S/R Cast Iron Cylinder Heads - 76cc Combustion Chambers
World Products 043600
World Products Small Block Chevy S/R Cast Iron Cylinder Head 76cc Combustion Chambers
$652.16
Estimated to ship direct from manufacturer in 24hrs
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World Products 043600-1
World Products Small Block Chevy S/R Cast Iron Cylinder Head 76cc Combustion Chambers
$891.04
Estimated to ship direct from manufacturer in 24hrs
FREE Shipping
Lowest Price Guarantee