SLEEVE SBC 9.500 - 4.125

The Darton 32110231 is a set of cast iron sleeves designed for Dart Chevy SB Aluminum engines. These wet sleeves feature "Swirl Coolant Technology" to improve heat transfer in the upper cylinder wall and flange area. They also come with a phosphate coating for enhanced corrosion and rust resistance, extending the life of the o-rings.

The sleeves offer cast iron performance in an aluminum block, improved block integral strength, and enhanced cooling. They provide superior oil and compression control, superior cylinder sealing and ring wear, and increased horsepower output potential for street or strip applications. The material boasts a tensile strength of 130,000 psi.