AFR BBC 265cc Magnum Oval Port Cylinder Heads CNC Chevy Big Block 468 3620-1. This product data sheet is originally written in English. AFR Direct Master Warehouse Distributor – All AFR Products Available. AFR 265cc BBC Magnum Oval Cylinder Heads. AFR’s 265cc Magnum “As Cast” Oval Port heads are the preferred choice over reworked factory heads. They feature partially CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. Recommended for street, towing, or street/strip engines with displacements up to 468 cubic inches, operating up to 6200 RPM. Also available with 100% CNC chambers for increased air flow (see chart). Component upgrades and machining options are available to customize AFR Heads to your specific build. AFR Part # 3620-1. There are many different options available for AFR heads, please view the details section below for the details on these heads. For the many other AFR heads available, and options such as upgrading springs or retainers. Small Port, High Velocity, Torque Monster! Want to wake up the Big Block in your favorite tow vehicle? AFR’s 265cc high velocity oval port is just the ticket! They are also ideal on smaller cubic inch street performance applications (up to 468 CID), providing “gobs” of bottom end torque, tremendous throttle response, and great all around power. Take note the higher flowing exhaust ports are raised. 375 over stock location, and therefore these heads might not be a direct bolt-on in every application. These heads have no EGR and are not emissions legal. Note : 1 longer head bolts needed on four bottom exhaust bolt holes. Important : Do not match your intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads. CUSTOM ORDER – typically takes 3-4 weeks: AFR# 3600 – 265cc Magnum Heads, Oval Port, 109cc, No Porting, No Parts, NON-emission AFR# 3600-1 – 265cc. Magnum Heads, Oval Port, CNC 112cc Chambers. No Porting, No Parts. AFR# 3610 – 265cc. Magnum Heads, Oval Port. 109cc, Hydraulic Roller Springs, NON-emission AFR# 3610-1 – 265cc. AFR# 3620 – 265cc. 109cc, Solid Roller Springs, NON-emission AFR# 3620-1 – 265cc. CNC 112cc Chambers, Solid Roller Springs. Due to the large demand for AFR heads, AFR currently takes 3-4 weeks to build a set of heads. 75% CNC Ported Exhaust Ports (Bowl Blend). 80% CNC Ported Intake Ports (Bowl Blend). Competition 5-angle Valve Job. 11/32″ Intake Valve, 2.190″ x 5.460 Overall Valve Length. 11/32″ Nail Head Exhaust Valve, 1.880″ x 5.450 Overall Valve Length. PAC Racing Spring 1.550 O. Solid Roller Valve Spring, 220lbs on seat. Manley 10° Steel Retainers 1.500 O. D x 1.120I. 10° 11/32 Valve Locks with lashcap recess. Adjustable 3/8 Guide Plates. 11/32 Viton Valve Seals. Hardened Valve Spring I. D Locator 1.550 O. Intake Valve Seats 2.450 O. D x 1.950 I. Exhaust Valve Seats 2.000 O. D x 1.580 I. AFR BB Chevy 7/16 Exhaust Rocker Studs. AFR BB Chevy 7/16 Intake Rocker Studs. 11/32 Exhaust Bronze Valve Guides. D x 2.10 O. D x 2.25 O. Specifications, Features, and Optional Supporting Components. Gasket #107 or GM #12366985. Head Gasket, Fel-Pro #1017-1 (Mark IV). Head Gasket, Fel-Pro #1047 (Mark V and VI). Head Bolt Washers, Manley. Stud Girdle, (AFR Specific). Minimum Cross Sectional Area. Spark Plug Starting Range. 109cc As Cast, 112cc with CNC Chambers. Diameter 1.725, Max – 1.750, no deeper. 24°/4° Intake, 15°/4° Exhaust. Angle Mill (Milling options available) 97cc max. Flat Mill (Milling options available) 102cc max. Important: Do not port match your intake manifold to any Fel-Pro gasket as it does not precisely match AFR heads. Note: Milling head deck will affect flow numbers. Angle mills might require a. 120 thick intake gasket. We have AFR heads to fit almost every performance application! – UPS Worldwide Expedited – 3-9 days GUARANTEED! (Most Countries, check UPS. Com) – UPS Worldwide Saver – 1-5 days GUARANTEED! We do not lower invoice values since it is a violation of US and International custom laws. Let us work to resolve your problem so everyone is happy. TREperformance 1725 Monrovia Ave. Suite D7 Costa Mesa, CA 92627. This item is in the category “Vehicle Parts & Accessories\Car Parts & Accessories\Engines & Engine Parts\Cylinder Heads”. The seller is “treperformance” and is located in this country: US. This item can be shipped worldwide.
- Interchange Part Number: Airflow 3620-1 112cc
- Placement on vehicle: Front
- Brand: Air Flow Research
- Manufacturer Part Number: AFR 3620-1
- Part brand: Air Flow Research
- Manufacturer Warranty: Yes
- Core Charge: None