Proflow Cylinder Head SuperMax 200 & Intake Kit, Manifold, AirMax, Dual Plane, Aluminium, Natural, 4-barrel Square Bore, For Holden, Commodore V8, VN

Proflow Cylinder Heads & Intake Manifold Kit Kit Includes Proflow Aluminium Cyl Heads, Proflow Intake Manifold, Valve Covers , Intake Gaskets , Intake Bolts Proflow Cylinder Heads do not sacrifice quality for a low price--you get both with our aluminium cylinder heads. The lightweight heads are cast from A-356 aluminium alloy with a large choice of Engine, for SB & BB Chevrolet, LS Chev Holden Ford SB 289-351W, 302,351 Cleveland 2V & 3V & BB FE, and Chrysler SB & BB, phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas. They're also end-milled and drilled for accessories. The fully assembled heads have stainless steel valves, High Performance valve springs, 7 degree valve locks, rocker arm studs, and guideplates. Perfect for your Mild or High performance Hot Rod. Proflow's AirMax intake manifold is designed for street and high performance 308-383 c.i.d. Holden Commodore V8 engines that utilize the 1988-98 Holden VN cylinder heads. This AirMax manifold is a dual-plane design that is tuned for both excellent throttle response and greater horsepower from 1500 to 6500 rpm. This manifold has been designed to fit the stock VN Cylinder Heads from 1988-1998. Proflow's Cast Aluminium Valve Covers are all the rave , suit your Holden Commodore VN-VT 5.0 Liter V8. These come in either Polished or Black powder coat with Machined Fin's and the Holden Name, ethier OE Style to clear all your stock engine compartment components or Performance aftermarket for your Engine swap. Proflow Intake Gasket : PFEGK012 ARP Intake Bolt Kit : ARP-105-2001 Cyl Heads Specifications: Material: A356 Aluminium Combustion Chamber: 63cc Intake Port Volume: 200cc Intake Port Dimension: Height -2.170 – Width – 1.285 Exhaust Port Volume: 72cc Exhaust Port Dimension: Height – 1.450” – Width – 1.283” Exhaust Port Location: OEM Spark Plug Location: OEM Intake Valve Dimensions: 2.020 Exhaust Valve Diameter: 1.60" Valve Stem Diameter: 8mm Valve Spring Diameter: Maximum Valve Lift: Spring Installed Height: Valve Spring Pocket O.D.:1.650 - ID .560 Valve Guide Material: Manganese Bronze Valve Guide Seal.: ID .530" Rocker Stud Thread Size: 7/16" x 16 Valve Angle: 5° Deck Thickness: .750"