For Chevy BBC 396 454 7.4L 65-00 Natural Aluminum Bare Cylinder Head 330cc/122cc

DESCRIPTION

--For 1965-2000 Big Block Chevy 396 427 454 496 502 7.4l V8 Engines.

--Spark Plug Style: Angle

--Material: Aluminum

--Style: Bare

--Finish: Natural

--Combustion Chamber Volume: 122cc

--Intake Runner Volume: 330cc

--Exhaust Runner Volume: 140cc

--Intake Valve Diameter: 2.250"

--Exhaust Valve Diameter: 1.880"

--Valve Stem Diameter: 11/32"

--Valve Guide Material: Manganese Bronze

--Intake Port Shape: Rectangle

--Intake Port Location: Standard

--Exhaust Port Shape: Square

--Exhaust Port Location: Standard

--Valve Seat Machine Style: 3-Angle

--Valve Seat Material: Ductile Iron

--Valve Cover Mounting Style: Perimeter Bolt

--Pre-Drilled Accessory Bolt Holes.

--Multi-Angle Seat Design For Improved Flow At Low Lifts.

--Thick Deck To Resist Warping And Allow For Additional Milling If Desired.

--High-Grade Aluminum, Bronze Valve Guides, And Advanced Port Design For Greater Airflow.

--Package: Including All Items In The Pictures.

Note: Professional Installation is Highly Recommended (No Instruction Included).