GENUINE GM PERFORMANCE PARTS CHEVROLET SMALL BLOCK CAST IRON VORTEC CYLINDER HEAD ASSEMBLY. THIS IS FOR (1) HEAD, ORDER TWO IF YOU NEED A PAIR. NEW GM PART NUMBER 12558060.
COMPLETELY ASSEMBLED WITH 1.940 / 1.500 VALVES. REQUIRES VORTEC SPECIFIC INTAKE MANIFOLD.
475 LIFT REQUIRE MACHINING VALVE GUIDE BOSSES. CAN BE MACHINED FOR 2.020 / 1.600 VALVES. ROCKER ARM STUDS CAN BE PINNED OR DRILLED AND TAPPED TO 3/8. VALVE SPRING DIAMETER IS 1.280. IF YOU HAVE A GM PARTS NEED THAT IS NOT LISTED, SEND US A NOTE AND WE WILL LIST IT FOR YOU.
The item "CHEVROLET PERFORMANCE PARTS SMALL BLOCK CAST IRON VORTEC CYLINDER HEAD GM OEM" is in sale since Saturday, December 28, 2013. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts".The seller is "freedomchevroletbuickgmc" and is located in Dallas, Texas. This item can be shipped to United States, Canada, Mexico.