This listing is for a brand new set of Intake & Exhaust Valves Compatible replacements for Ford 390 360 410 428 352 Mercury FE Big Block. Intake and exhaust valves made by Elgin Industries. Set comes with 8 intake valves, 8 exhaust valves, and 32 hardened valve locks/keepers. Intake Part Number: I-1418B Head Diameter: 2.030" Length: 5.445" Stem Diameter: 0.3715" Lock Style: Single Groove Exhaust Part Number: E-1355B Head Diameter: 1.561" Length: 5.426" Stem Diameter: 0.3713" Lock Style: Single Groove. These valves are compatible with many of the following big block Ford FE series V8 engines used in passenger cars and trucks. 352 CID (5.8L) 1961-1967 Passenger car only 360 CID (5.9L) 1968-1976 All 390 CID (6.4L) 1961-1976 All 410 CID (6.7L) 1966-1967 Mercury 428 CID (7.0L) 1966-1968 All Except CJ and Police. Parts # I-1418B x 8 + E-1355B x 8 + EHC-613R