Hastings 4.020" Bore Piston Rings 5/64 x 5/64 x 3/16" Thick Standard Tension Moly - 8 Cylinder 741021 625 X 570 X 765The

625 X 570 X 765The COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development

Magnum Pushrods for Big Block Chrysler 440 with Non-Adjustable Rocker Arms

1983-1986 Mercury Lynx

2004-2008 Ford F650

Tool available separately

Hastings 4.020" Bore Piston Rings 5/64 x 5/64 x 3/16" Thick Standard Tension Moly - 8 Cylinder 741021 625 X 570 X 765TheProduct Description: Piston Rings 4. 020 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Steel Plasma Moly 8 Cylinder For nearly 100 years, Hastings has earned its reputation as a leader in piston ring technology.