For Chevy For GM LS3 L92 6.0L 6.2L Cylinder Head Rectangle Port Assembly 265cc 70cc For Chevy For GM LS3 L92 6.0L 6.2L Cylinder Head Rectangle Port Assembly 265cc 70cc

Description:
For GM LS3 L92 6.0L 6.2L Aluminum Cylinder Head
OE Number: 821
Material: Aluminum
Finish: Natural
Cylinder Head Style: Bare
Combustion Chamber Volume: 70cc
Intake Runner Volume: 265cc
Exhaust Runner Volume: 86cc
Intake Valve Diameter: 2.165"
Exhaust Valve Diameter: 1.590"
Valve Stem Diameter: 0.316"
Intake Port Shape: Rectangle
Intake Port Location: Standard
Exhaust Port Shape: Oval
Exhaust Port Location: Standard
Valve Guide Material: Manganese Bronze
Valve Cover Mounting Style: Perimeter Bolt
Pre-Drilled Accessory Bolt Holes.
High-Grade Aluminum, Bronze Valve Guides, Hardened Seats, And Advanced Port Design For Greater Airflow.
Valve Job Performed With All Required Angles & Vacuum Tested Seals To Ensure Perfect Compression.
Includes Pre-Drilled Accessory Bolt Holes For A Hassle-Free Installation Process.
Package: Including All Items In The Pictures.
Note: Professional Installation Is Highly Recommended (No Instruction Included).