Chevrolet Performance Aluminum Cylinder Head - Assembled - 2.165 / 1.590 in Valves - 260 cc Intake - GM LS-Series 89504 and vintage styling available at

and vintage styling available at any price

maintenance free

Firebird's exhaust system to bolt up

6 mm Thick Wall

2007-2009 Chevrolet Express 1500

Chevrolet Performance Aluminum Cylinder Head - Assembled - 2.165 / 1.590 in Valves - 260 cc Intake - GM LS-Series 89504 and vintage styling available atProduct Description: Cylinder Head Assembled 2. 165 1. 590 in Valves 260 cc Intake 68. 4 cc Chamber 1. 290 in Springs GM LS Series Chevrolet Performance has a wide selection of performance upgrade parts specifically for GM vehicles, as well as crate engines, you can add proven performance to stock vehicles. Looking to personalize your vehicle? Chevrolet Performance is the place. Inside youll discover a complete portfolio of Chevrolet, Buick, GMC and