Hastings 4.020" Bore Piston Rings 5/64 x 5/64 x 3/16" Thick Standard Tension Moly - 8 Cylinder 4125CMDBU The Delta deflectors generate increased

The Delta deflectors generate increased scavenging for better performance and reduced interior sound

1997-1999 Chevrolet Cargo Van

The Phenolic material will limit the transfer of heat from the block into the fuel pump

Good for street machines

Valve spring upgrade required

Hastings 4.020" Bore Piston Rings 5/64 x 5/64 x 3/16" Thick Standard Tension Moly - 8 Cylinder 4125CMDBU The Delta deflectors generate increasedProduct 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.