Darton Sleeves Replacment Cylinder Sleeve - BRODIX SB Chevy 4.110 Bore 4.320 OD 20800SK Hardened exhaust seats and long-lasting

Hardened exhaust seats and long-lasting mag-bronze valve guides significantly extend cylinder head life

100 RPM Increments

Primarily used with rod style throttle linkage

Fit 5/8" diameter valve stem hole for use with center reliefs and Schrader (Fill) valve (ALL44065)

Darton Sleeves Replacment Cylinder Sleeve - BRODIX SB Chevy 4.110 Bore 4.320 OD 20800SK Hardened exhaust seats and long-lastingProduct Description: Cylinder Sleeve 4. 110 in Bore 5. 535 in Height 4. 320 in OD 0. 091 in Wall Steel Brodix Block Small Block Chevy Sold Individually Darton is a manufacture of engine block sleeves. Using specialized ductile iron, their sleeves fit a variety of engine makes and sizes.