AP02 Pair Cylinder Heads Assembly 129006601 for - SBC 350/327/383 Camaro Z06 190cc Cylinder head assembly designed for Small Block engines including 350, 327, and 383 applications.Compatible with Corvette, Camaro, and Z06 models.Features a 190cc intake runner volume and a 64cc combustion chamber.Constructed from aluminum with a natural finish.Equipped with 2.02 inch intake valves and 1.60 inch exhaust valves, both included.Valve springs and valve stem seals are included, with positive stop style seals.Straight spark plug configuration.Intake and exhaust ports are square in shape and in standard location.Intake valve angle is 23 degrees, exhaust valve angle is 23 degrees.Rocker arms are not included.Hydraulic flat tappet valvetrain compatible.This item is a third-party substitute.Use of brand names is limited to indicating which devices it supports.