Hastings 4.040" Bore Piston Rings 5/64 x 5/64 x 3/16" Thick Standard Tension Iron - 8 Cylinder Plug Wires Pliable polyurethane flange with integrated

Pliable polyurethane flange with integrated bumps insures tight

Features billet stock style neck

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

Factory length for Chevrolet 396-454 Big Block engines with retro-fit hydraulic roller cams

Hastings 4.040" Bore Piston Rings 5/64 x 5/64 x 3/16" Thick Standard Tension Iron - 8 Cylinder Plug Wires Pliable polyurethane flange with integratedProduct Description: Piston Rings 4. 040 in Bore Drop In 5 64 x 5 64 x 3 16 in Thick Standard Tension Iron Phosphate 8 Cylinder For nearly 100 years, Hastings has earned its reputation as a leader in piston ring technology.