Darton Sleeves Cylinder Sleeve - 4.490" Bore - 8.000" Height - 4.750" OD - 0.121" Wall - Steel - Donovan 700 Block - BB Chevy H764001XL is beneficial: it prevents damaging

is beneficial: it prevents damaging ultraviolet light from reaching the Earth's surface

High grade steel hardware

The factory motor mounts are designed to dampen engine vibration

530" ShaftThe COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development

Darton Sleeves Cylinder Sleeve - 4.490" Bore - 8.000" Height - 4.750" OD - 0.121" Wall - Steel - Donovan 700 Block - BB Chevy H764001XL is beneficial: it prevents damagingProduct Description: Cylinder Sleeve 4. 490 in Bore 8. 000 in Height 4. 750 in OD 0. 121 in Wall Steel Donovan 700 Block Big 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.