AFR Direct Master Warehouse Distributor – All AFR Products Available. AFR 377cc BBC Rectangle Cylinder Heads. AFR’s 377cc heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings, Steel retainers, and high quality components throughout. These heads are best suited for large displacement (540+) Big Block Chevrolet racing engines. Component upgrades and machining options are available to customize AFR Heads to your specific build. AFR Part # 3575. 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. Fully CNC Ported Magnum BBC Cylinder Heads! AFR 377’s are ideal for large cubic inch combinations (540-615 CID) that are looking for more airflow but want to retain a 2.300 intake valve. This head will also work well on smaller very aggressive applications (489-532 CID) turning over 8000 RPM’s. 600 making it an ideal choice if your limited to how much cam lift you can run, such as a big inch marine engine with a hydraulic roller cam and a limited RPM ceiling. With close to 440 CFM of peak flow it should be extremely easy to clear 950 HP in a single four barrel aggressive applications and even more in well sorted out combinations (especially with tunnel ram/sheet metal dual quad combo’s). The exhaust ports are also notably stronger making the 377 an excellent choice in a forced induction or nitrous car that could benefit from the stronger exhaust flow. 750 thick cylinder head deck, reinforced rocker stud bosses, and PAC 1.625 racing springs rated to. Standard combustion chamber volume is 121cc for our 377cc BBC. 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 application. 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. CUSTOM ORDER – typically takes 3-4 weeks: AFR# 2015-TI – 377cc Magnum Heads, Rectangle Port. NON-emission AFR# 3575 – 377cc. Magnum Heads, Rectangle Port, Full CNC Ported. Due to the large demand for AFR heads, AFR currently takes 3-4 weeks to build a set of heads. 100% CNC Ported Chambers, Exhaust, and Intake. Competition 5-angle Valve Job. 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. Valve Spring Pocket Diameter. 2.450″H x 1.755″W x 13/32 Radius. 1.780″H x 2.025″ W. 24°/4° Intake, 15°/4° Exhaust. 009 per cc/Maximum 104cc. 006 per cc/ Maximum 114cc. Stud Girdle, (AFR Specific). Important: Do not port match your intake manifold to Fel-Pro gasket as it does not precisely fit AFR heads. 1 longer head bolts needed on four bottom exhaust bolt holes. 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 377cc Rectangle Port Aluminum Cylinder Heads Chevy Big Block 615 3575″ is in sale since Thursday, January 21, 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
- Interchange Part Number: Airflow 3575 121cc
- Brand: Air Flow Research
- Warranty: Yes
- Core Charge: None
- Manufacturer Part Number: AFR 3575