Dart Block Sleeve - SB Chevy 4.125 ID x 5.625 Long 10246 Engine diaper will help contain

Engine diaper will help contain engine oil and fragments if an engine failure occurs

deburring and polishing

hydraulic wing cylinders

GM Northstar Series

1-1/4 in Valve Cover Hole

Dart Block Sleeve - SB Chevy 4.125 ID x 5.625 Long 10246 Engine diaper will help containProduct Description: Cylinder Sleeve 4. 125 in Bore 5. 625 in Height 4. 310 in OD 9. 025 in Deck Iron Small Block Chevy Sold Individually Since 1981, Dart Machinery has become the acknowledged leader in producing race winning components. Dart Machinery aluminum and cast iron engine blocks are designed to meet the specialized needs of racers and performance enthusiasts. Dart components are developed in house, manufactured on Dartas own CNC machining