Key Features of...
S/R Stock Replacement Cylinder Heads

• Made from high density cast iron
• Hardened steel exhaust seats compatible with today’s unleaded gasolines
• Extra thick decks and walls for improved reliability
• All heads come with screw-in rocker studs
• Machined valve cover rails eliminate leaks

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 = GM 3795896, 3814482, 3827185, 3884520, 3890462, 3911032, 3917290, 3917291, 3927186, 3932441, 3946813, 3973370 and 3998993
* = Requires drilling for steam holes