AFR Direct Master Warehouse Distributor – All AFR Products Available. AFR 345cc BBC Rectangle Cylinder Heads. AFR’s 345cc heads are designed feature partially CNC ported intake & exhaust, A356 aluminum castings and high quality components throughout. Recommended for more radical street/strip, “Pro Street”, or racing builds with displacements up to 572 cubic inches, operating up to 7000 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 # 3450-1. 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. AFR’s “As Cast” Magnum Series If “Dirty Harry” drove a racecar, it would certainly be fitted with a pair of our 345 or 357 “Magnum” cylinder heads. If huge horsepower is what you are searching for, either of these castings will certainly deliver. With our Race Ready “As Cast” 345cc flirting with 400 CFM and our fully CNC ported 357cc flowing 425 CFM, these heads represent the ultimate in airflow for your BB Chevrolet. These heads will also provide impressive torque figures at higher rpm levels. Blown, turbo, and nitrous engines will especially like the larger, higher flowing intake ports. These heads will work best with camshafts exceeding. 750 gross valve lift to make better use of the substantial airflow found in the higher lift range. 750 thick head deck, and reinforced rocker stud bosses. Standard combustion chamber volume is 115cc’s on the 345 “As Cast” model. Properly selecting the correct cylinder head depends on a large number of variables. Please consult with one of our sales technicians to assist you in making the best decision for your particular Note: Optional stud girdle required for 2° rolled valve angles and 1 longer head bolts needed on four bottom exhaust bolt holes. Longer pushrods might also be required. Note: Optional stud girdle required for 2° rolled valve angles and 1 longer head bolts needed on four bottom exhaust bolt holes. CUSTOM ORDER – typically takes 3-4 weeks: AFR# 2110 – 345cc Magnum Heads, Rectangle Port. NON-emission AFR# 2110-1 – 345cc. Magnum Heads, Rectangle Port, Partially Ported. AFR# 3450 – 345cc Magnum Heads, Rectangle Port. No Parts, NON-emission AFR# 3450-1 – 345cc. Due to the large demand for AFR heads, AFR currently takes 3-4 weeks to build a set of heads. Competition 5-angle Valve Job. 50% CNC Ported Combustion Chambers. Specifications, Features, and Optional Supporting Components. Head Gasket, Fel-Pro #1047 (Mark V and VI). Head Gasket, Fel-Pro #1017-1 (Mark IV). Head Bolt Washers, Manley. Spark Plug Starting Range. 121cc w/ CNC Chambers & 117cc w/ As Cast. Valve Spring Pocket Diameter. 2.435″H x 1.765″W x 13/32 Radius. 1.720″H x 1.920″ W. 24°/4° Intake, 15°/4° Exhaust. 009 per cc/Maximum 104cc As Cast or CNC Chamber. 006 per cc/ Maximum 108cc As Cast or 114cc CNC Chamber. Stud Girdle, (AFR Specific). Important: Optional stud girdle required for 2° rolled valve angles and 1 longer head bolts needed on four bottom exhaust bolt holes. 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. The item “AFR BBC 345cc Magnum Rectangle Port Cylinder Heads Chevy Big Block 572 3450-1″ is in sale since Wednesday, January 20, 2016. This item is in the category “eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Cylinder Heads & Parts”. The seller is “treperformance” and is located in Costa Mesa, California. This item can be shipped worldwide.

• Placement on Vehicle: Front
• Part Brand: Air Flow Research
• Core Charge: None
• Interchange Part Number: Airflow 3450-1 121cc
• Manufacturer Part Number: AFR 3450-1
• Brand: Air Flow Research
• Warranty: Yes