This listing is for 16 Elgin push rods and 16) Elgin (USA-manufacturer) hydraulic roller Lifters for Chevrolet GM Vortec's with the 5.7 5.7L 350 engine. Push Rod Overall length: 7.192" Diameter: 5/16" x 0.060" Wall. These fit various 1987-2007 Chevrolet small block V-8 engines (All equipped with factory hydraulic roller camshaft & roller block). 1996-2002 Passenger Cars VIN: "M" with 305 CID (5.0L) 1996-2002 Trucks 350 CID (5.7L) 1996-2002 Trucks VIN: "R" Vortec 350 CID (5.7L) 1996-1997 Passenger Cars VIN: P LT1 1987-1996 5.7L 350 VIN "K". Vin Refers to the 8th character in vehicle ID number.Elgin Industries