DESCRIPTION

--For Small Block Chevy 283 302 305 327 350 383 & 400 V8 engines up to 1986.

--Spark Plug Style: Angle

--Material: Aluminum

--Style: Bare

--Finish: Natural

--Combustion Chamber Volume: 64cc

--Intake Runner Volume: 205cc

--Exhaust Runner Volume: 74cc

--Intake Valve Diameter: 2.020"

--Exhaust Valve Diameter: 1.600"

--Valve Stem Diameter: 11/32"

--Intake Port Shape: Rectangle

--Intake Port Location: Standard

--Exhaust Port Shape: Square

--Exhaust Port Location: Standard

--Intake Valve Angle: 23 deg.

--Exhaust Valve Angle: 23 deg.

--Valve Seat Material: Ductile Iron

--Valve Cover Mounting Style: Center & Perimeter Bolt

--Pre-Drilled Accessory Bolt Holes

--High-Grade Aluminum, Bronze Valve Guides, Hardened Seats, Advance Port Design For Greater Air Flow

--Package: Including All Items In The Pictures.

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